Added updated NFC implementation into refactored structure

.cargo/config.toml

@@ -0,0 +1,16 @@
+[target.xtensa-esp32s3-none-elf]
+runner = "espflash flash --monitor --chip esp32s3"
+
+[env]
+ESP_LOG="info"
+WM_CONN = '{"ssid": "Wokwi-GUEST", "psk": "", "data": {}}'
+
+[build]
+rustflags = [
+  "-C", "link-arg=-nostartfiles",
+]
+
+target = "xtensa-esp32s3-none-elf"
+
+[unstable]
+build-std = ["alloc", "core"]

.clippy.toml

@@ -0,0 +1 @@
+stack-size-threshold = 1024

.gitignore

@@ -0,0 +1,29 @@
+# will have compiled files and executables
+debug/
+target/
+
+# Editor configuration
+.vscode/
+.zed/
+.helix/
+.nvim.lua
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# RustRover
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+
+# Ignore .DS_Store file in mac
+**/.DS_Store
+
+# Ignore checked out wiki
+creaturedex.wiki/

Cargo.toml

@@ -0,0 +1,62 @@
+[package]
+edition      = "2024"
+name         = "creaturedex"
+rust-version = "1.88"
+version      = "0.1.0"
+
+[[bin]]
+name = "creaturedex"
+path = "./src/bin/main.rs"
+
+[dependencies]
+esp-hal = { version = "~1.1.0", features = ["esp32s3", "log-04", "unstable"] }
+
+esp-rtos = { version = "0.3.0", features = [
+  "embassy",
+  "esp-alloc",
+  "esp-radio",
+  "esp32s3",
+  "log-04",
+] }
+
+esp-bootloader-esp-idf = { version = "0.5.0", features = ["esp32s3", "log-04"] }
+log                    = "0.4.27"
+
+critical-section = "1.2.0"
+embedded-io = "0.7.1"
+embassy-executor = { version = "0.10.0", default-features = false }
+embassy-time = { version = "0.5.1", default-features = false }
+esp-alloc = "0.10.0"
+esp-hal-wifimanager = { git = "https://github.com/InvisibleUSA/esp-hal-wifimanager", default-features = false, features = [
+  "ap",
+  "esp32s3",
+] }
+esp-println = { version = "0.17.0", features = ["esp32s3", "log-04"] }
+display-interface-spi = "0.5.0"
+ili9341 = "0.6.0"
+embedded-hal = "1.0.0"
+embedded-hal-bus = "0.3.0"
+embedded-graphics = "0.8.2"
+embedded-graphics-core = "0.4.1"
+base64 = { version = "0.22", default-features = false, features = ["alloc"] }
+pn532 = "0.5.0"
+ndef = "0.5.0"
+
+
+
+
+# For fine tuning these settings, please refer to https://doc.rust-lang.org/cargo/reference/profiles.html
+[profile.dev]
+# The default debug profile is too slow and too big for resource-constrained devices.
+# Always build with some optimizations enabled.
+opt-level = "s"
+
+[profile.release]
+codegen-units = 1     # LLVM can perform better optimizations using a single thread
+debug         = 2     # prefer slower builds but better debugging experience
+lto           = 'fat'
+opt-level     = 's'
+
+[features]
+default = []
+wokwi = []

build.rs

@@ -0,0 +1,70 @@
+fn main() {
+    linker_be_nice();
+    // make sure linkall.x is the last linker script (otherwise might cause problems with flip-link)
+    println!("cargo:rustc-link-arg=-Tlinkall.x");
+}
+
+fn linker_be_nice() {
+    let args: Vec<String> = std::env::args().collect();
+    if args.len() > 1 {
+        let kind = &args[1];
+        let what = &args[2];
+
+        match kind.as_str() {
+            "undefined-symbol" => match what.as_str() {
+                what if what.starts_with("_defmt_") => {
+                    eprintln!();
+                    eprintln!(
+                        "💡 `defmt` not found - make sure `defmt.x` is added as a linker script and you have included `use defmt_rtt as _;`"
+                    );
+                    eprintln!();
+                }
+                "_stack_start" => {
+                    eprintln!();
+                    eprintln!("💡 Is the linker script `linkall.x` missing?");
+                    eprintln!();
+                }
+                what if what.starts_with("esp_rtos_") => {
+                    eprintln!();
+                    eprintln!(
+                        "💡 `esp-radio` has no scheduler enabled. Make sure you have initialized `esp-rtos` or provided an external scheduler."
+                    );
+                    eprintln!();
+                }
+                "embedded_test_linker_file_not_added_to_rustflags" => {
+                    eprintln!();
+                    eprintln!(
+                        "💡 `embedded-test` not found - make sure `embedded-test.x` is added as a linker script for tests"
+                    );
+                    eprintln!();
+                }
+                "free"
+                | "malloc"
+                | "calloc"
+                | "get_free_internal_heap_size"
+                | "malloc_internal"
+                | "realloc_internal"
+                | "calloc_internal"
+                | "free_internal" => {
+                    eprintln!();
+                    eprintln!(
+                        "💡 Did you forget the `esp-alloc` dependency or didn't enable the `compat` feature on it?"
+                    );
+                    eprintln!();
+                }
+                _ => (),
+            },
+            // we don't have anything helpful for "missing-lib" yet
+            _ => {
+                std::process::exit(1);
+            }
+        }
+
+        std::process::exit(0);
+    }
+
+    println!(
+        "cargo:rustc-link-arg=-Wl,--error-handling-script={}",
+        std::env::current_exe().unwrap().display()
+    );
+}

diagram.json

@@ -0,0 +1,37 @@
+{
+  "version": 1,
+  "author": "CreatureDex",
+  "editor": "wokwi",
+  "parts": [
+    {
+      "type": "board-esp32-s3-devkitc-1",
+      "id": "esp1",
+      "top": 67.2,
+      "left": -263.96,
+      "attrs": {}
+    },
+    { "type": "wokwi-ili9341", "id": "lcd1", "top": -191.24, "left": -0.38, "attrs": {} },
+    {
+      "type": "wokwi-pushbutton",
+      "id": "btn1",
+      "top": 131,
+      "left": -124.8,
+      "attrs": { "color": "green", "xray": "1", "key": "1" }
+    }
+  ],
+  "connections": [
+    [ "esp1:TX", "$serialMonitor:RX", "", [] ],
+    [ "esp1:RX", "$serialMonitor:TX", "", [] ],
+    [ "lcd1:VCC", "esp1:3V3", "red", [ "v19.2", "h-57.6", "v-105.6", "h-124.95" ] ],
+    [ "lcd1:GND", "esp1:GND.2", "black", [ "v28.8", "h-76.8", "v-76.8" ] ],
+    [ "lcd1:CS", "esp1:11", "orange", [ "v0" ] ],
+    [ "lcd1:D/C", "esp1:12", "gold", [ "v0" ] ],
+    [ "lcd1:RESET", "esp1:10", "brown", [ "v0" ] ],
+    [ "lcd1:MOSI", "esp1:35", "violet", [ "v105.6", "h-124.8", "v-144" ] ],
+    [ "lcd1:SCK", "esp1:36", "white", [ "v115.2", "h-144", "v-86.4" ] ],
+    [ "esp1:37", "lcd1:MISO", "magenta", [ "h57.6", "v105.6", "h172.8" ] ],
+    [ "btn1:1.l", "esp1:GND.2", "green", [ "h-9.6", "v-48" ] ],
+    [ "btn1:2.l", "esp1:38", "green", [ "h-9.6", "v19.4" ] ]
+  ],
+  "dependencies": {}
+}

model/right-half.scad

@@ -17,10 +17,10 @@ module right_half_door_only() {
 }
 // #right_half_door_only();
 
-module battery_spacer(cable_cube_additional_length=0) {
+module battery_spacer(cable_cube_additional_length=0, cable_cube = 8.25) {
     length = 106;
-    rotate([0, 90, 90]) cylinder(d=18.5, h=length);
+    battery_d = 18;
-    cable_cube = 8.25;
+    rotate([0, 90, 90]) cylinder(d=battery_d+1.9, h=length);
     translate([0, 0, -cable_cube]) cube([cable_cube, length+cable_cube_additional_length, cable_cube]);
 }
 // !battery_spacer();
@@ -28,13 +28,13 @@ module battery_spacer(cable_cube_additional_length=0) {
 module battery_contact()
 {
     base_height = 4;
-    silver_wire_d = 1.15;
+    silver_wire_d = 1.7;
 
     module base_body() {
         rotate([90, 0, 0])
             resize([0, base_height, 0], auto=[false, true, false])
-                scale(0.99)
+                scale(0.92)
-                    battery_spacer();
+                    battery_spacer(cable_cube=0);
     }
 
     module contact_spring()
@@ -42,24 +42,24 @@ module battery_contact()
         spring_width = 11;
         translate([-2, -spring_width/2, 0])
             difference() {
-                scale([1.75, 1, 1]) rotate([-90, 0, 0]) cylinder(d=10, h=spring_width);
+                scale([1.5, 1, 1]) rotate([-90, 0, 0]) cylinder(d=10, h=spring_width);
-                scale([1.75, 1, 1.5]) rotate([-90, 0, 0]) cylinder(d=6, h=spring_width);
+                scale([0.95, 1, 0.87]) rotate([-90, 0, 0]) cylinder(d=10, h=spring_width);
-                translate([-100, 0, -50]) cube(100);
+                translate([-101, 0, -50]) cube(100);
                 translate([-50, 0, -100]) cube(100);
-                translate([0, spring_width/3-silver_wire_d, 0]) cube([silver_wire_d, silver_wire_d, 50]);
+                translate([-1, spring_width/3-silver_wire_d, 0]) cube([silver_wire_d, silver_wire_d, 50]);
-                translate([0, spring_width*2/3, 0]) cube([silver_wire_d, silver_wire_d, 50]);
+                translate([-1, spring_width*2/3, 0]) cube([silver_wire_d, silver_wire_d, 50]);
             }
     }
+
     module silver_wire_channels()
     {
-        translate([7.3, 0, -6])
+        translate([6.5, -2.5, -7])
-            rotate([-15, 0, 0])
+                #cylinder(d=silver_wire_d, h=15);
-                cylinder(d=silver_wire_d, h=15);
 
-        translate([7.3, 0, -6])
+        translate([6.5, 2.5, -7])
-            rotate([15, 0, 0])
+                #cylinder(d=silver_wire_d, h=15);
-                cylinder(d=silver_wire_d, h=15);
     }
+    // silver_wire_channels();
 
     translate([0, 0, base_height])
         rotate([0, 0, 45])
@@ -74,7 +74,7 @@ module battery_contact()
                 silver_wire_channels();
     }
 }
-// !battery_contact();
+battery_contact();
 
 module right_half_hinge_only() {
     module original() {
@@ -104,12 +104,12 @@ module right_half_hinge_only() {
     base_model();
     // translate([0, -40, 11]) rotate([0, 0, 90]) battery();
 }
-// right_half_hinge_only();
+// !right_half_hinge_only();
 
 module right_half() {
     right_half_door_only();
     right_half_hinge_only();
 }
 
-right_half();
+// right_half();
 // #right_half_components();

rust-toolchain.toml

@@ -0,0 +1,2 @@
+[toolchain]
+channel = "esp"

shell.nix

@@ -0,0 +1,57 @@
+{
+  pkgs ? import <nixpkgs> { },
+}:
+let
+  host-triple = "x86_64-unknown-linux-gnu";
+  gcc-arch = "xtensa-esp-elf";
+  gcc-release = "16.1.0_20260609";
+  toolchain-pkg = pkgs.stdenv.mkDerivation rec {
+    pname = "esp32-xtensa-rust-toolchain";
+    version = "1.97.0.0";
+    srcs = [
+      (pkgs.fetchurl {
+        url = "https://github.com/esp-rs/rust-build/releases/download/v${version}/rust-${version}-${host-triple}.tar.xz";
+        hash = "sha256-qZv+5pIh6f9thjiPaBHuaIzUBeagQAo80XhOjUY+nZk=";
+      })
+      (pkgs.fetchurl {
+        url =
+          let
+            gcc-file = "${gcc-arch}-${gcc-release}-x86_64-linux-gnu.tar.xz";
+          in
+          "https://github.com/espressif/crosstool-NG/releases/download/esp-${gcc-release}/${gcc-file}";
+        hash = "sha256-9wh1Lrs1yrIfGEsldBFO0Rh2GdsO24pLqRPAbKL6Z14=";
+      })
+      (pkgs.fetchurl {
+        url = "https://github.com/esp-rs/rust-build/releases/download/v${version}/rust-src-${version}.tar.xz";
+        hash = "sha256-Vo1oi5+PMy7E0EZXVE+tI+mc4R6ebPWDWXnmiijGi3M=";
+      })
+      # TODO maybe I need clang but so far it works without https://github.com/esp-rs/espup/blob/main/src/toolchain/llvm.rs
+    ];
+    sourceRoot = ".";
+    nativeBuildInputs = [ pkgs.autoPatchelfHook ];
+    buildInputs = [
+      pkgs.zlib
+      pkgs.stdenv.cc.cc.lib
+    ];
+    installPhase = ''
+      runHook preInstall
+
+      patchShebangs --build rust-nightly-x86_64-unknown-linux-gnu/install.sh rust-src-nightly/install.sh
+
+      rust-nightly-x86_64-unknown-linux-gnu/install.sh --destdir="$out" --prefix="" --without=rust-docs-json-preview,rust-docs --disable-ldconfig
+      rust-src-nightly/install.sh --destdir="$out" --prefix="" --disable-ldconfig
+
+      cp -pr --reflink=auto -- xtensa-esp-elf "$out";
+      # ensure linker is in PATH
+      ln -s $out/xtensa-esp-elf/bin/* "$out/bin/"
+
+      runHook postInstall
+    '';
+  };
+in
+(pkgs.mkShell {
+  packages = with pkgs; [
+    espflash
+    toolchain-pkg
+  ];
+})

src/bin/main.rs

@@ -0,0 +1,114 @@
+#![no_std]
+#![no_main]
+#![deny(
+    clippy::mem_forget,
+    reason = "mem::forget is generally not safe to do with esp_hal types, especially those \
+    holding buffers for the duration of a data transfer."
+)]
+#![deny(clippy::large_stack_frames)]
+
+use creaturedex::card::mock::{MOCK_PAYLOAD, MOCK_PAYLOAD2};
+use creaturedex::display::primary_lcd::init_primary_lcd;
+use creaturedex::display::views::card_view::render_nfc_payload;
+use creaturedex::drivers::nfc_pn532::NfcPn532Driver;
+use creaturedex::navigation::input::init_navigation_button;
+use creaturedex::navigation::state::NavigationState;
+use creaturedex::network::wifi::setup_wifi;
+use embassy_executor::Spawner;
+use embassy_time::Timer;
+use embedded_graphics::draw_target::DrawTarget;
+use embedded_graphics::pixelcolor::Rgb565;
+use embedded_graphics::prelude::RgbColor;
+use esp_hal::time::Duration;
+use esp_hal::clock::CpuClock;
+use esp_hal::delay::Delay;
+use esp_hal::timer::timg::TimerGroup;
+use log::error;
+
+#[panic_handler]
+fn panic(panic_info: &core::panic::PanicInfo) -> ! {
+    error!("{}", panic_info);
+    loop {}
+}
+
+extern crate alloc;
+
+// This creates a default app-descriptor required by the esp-idf bootloader.
+// For more information see: <https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/system/app_image_format.html#application-description>
+esp_bootloader_esp_idf::esp_app_desc!();
+
+#[allow(
+    clippy::large_stack_frames,
+    reason = "it's not unusual to allocate larger buffers etc. in main"
+)]
+#[esp_rtos::main]
+async fn main(spawner: Spawner) {
+    esp_println::logger::init_logger_from_env();
+
+    let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
+    let peripherals = esp_hal::init(config);
+
+    // The following GPIO pins are in use by some feature of the module and should not be used.
+    let _ = peripherals.GPIO27;
+    let _ = peripherals.GPIO28;
+    let _ = peripherals.GPIO29;
+    let _ = peripherals.GPIO30;
+    let _ = peripherals.GPIO31;
+    let _ = peripherals.GPIO32;
+    let _ = peripherals.GPIO33;
+    let _ = peripherals.GPIO34;
+
+    esp_alloc::heap_allocator!(#[esp_hal::ram(reclaimed)] size: 73744);
+
+    let mut delay = Delay::new();
+    let button1 = init_navigation_button(peripherals.GPIO38);
+
+    let timg0 = TimerGroup::new(peripherals.TIMG0);
+    let sw_interrupt =
+        esp_hal::interrupt::software::SoftwareInterruptControl::new(peripherals.SW_INTERRUPT);
+    esp_rtos::start(timg0.timer0, sw_interrupt.software_interrupt0);
+
+    let mut display = init_primary_lcd(
+        peripherals.SPI2,
+        peripherals.GPIO36,
+        peripherals.GPIO35,
+        peripherals.GPIO37,
+        peripherals.GPIO11,
+        peripherals.GPIO10,
+        peripherals.GPIO12,
+        &mut delay,
+    );
+
+    setup_wifi(peripherals.WIFI, peripherals.FLASH, &spawner).await;
+
+    log::info!("Setup complete, entering main loop");
+
+    let mut nav_state = NavigationState::new();
+
+    let mut nfc_driver  = NfcPn532Driver::new(peripherals.I2C0, peripherals.GPIO17, peripherals.GPIO18);
+    let timeout = Duration::from_millis(1000);
+    if nfc_driver.configure_sam(timeout).is_ok() {
+        log::info!("NFC SAM configuration successful");
+    } else {
+        log::error!("NFC SAM configuration failed");
+    }
+
+    loop {
+        if let Ok(card_data) = nfc_driver.read_card_data() {
+            log::info!("NFC Card Read: {:?}", card_data);
+        }
+
+        if button1.is_low() {
+            log::info!("Button pressed!");
+            display.clear(Rgb565::BLACK).unwrap();
+            let payload = if nav_state.toggle_payload() {
+                &MOCK_PAYLOAD
+            } else {
+                &MOCK_PAYLOAD2
+            };
+
+            render_nfc_payload(&mut display, payload);
+        }
+        Timer::after_millis(10).await;
+    }
+}

src/card.rs

@@ -0,0 +1,3 @@
+pub mod decoder;
+pub mod mock;
+pub mod model;

src/card/decoder.rs

@@ -0,0 +1,72 @@
+use alloc::string::{String, ToString};
+use crate::card::model::NfcPayload;
+
+pub fn split_nfc_hex(payload: &[u8]) -> Option<NfcPayload<'_>> {
+    if payload.len() < 0x35A {
+        return None;
+    }
+
+    Some(NfcPayload {
+        event_encoding: &payload[0..2],
+        card_type: payload[2],
+        card_uuid: &payload[3..5],
+        _reserved: &payload[5..9],
+        sprite: &payload[9..0x2DB],
+        packed_card_text: &payload[0x2DB..0x311],
+        secret: &payload[0x311..0x329],
+        _opaque_trailer: &payload[0x329..0x35A],
+    })
+}
+
+pub fn decode_known_event(event_encoding: &[u8]) -> Option<&'static str> {
+    match event_encoding {
+        [0x39, 0xC3] => Some("39C3"),
+        [0x40, 0xC3] => Some("40C3"), // future proofing :)
+        [0xE9, 0x24] => Some("GPN 24"),
+        [0xE9, 0x25] => Some("GPN 25"), // future proofing :)
+        _ => None,
+    }
+}
+
+pub fn decode_secret(hex: &[u8]) -> String {
+    let mut ascii_string = String::new();
+    for &byte in hex {
+        if byte == 0 {
+            break;
+        }
+
+        if byte.is_ascii_graphic() || byte == b' ' {
+            ascii_string.push(byte as char);
+        }
+    }
+    ascii_string
+}
+
+pub fn decode_packed_card_text(bytes: &[u8]) -> (String, String, String, String) {
+    let alphabet = b" ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-";
+    let mut full_text = String::with_capacity((bytes.len() * 8) / 6 + 1);
+
+    let mut accumulator: u32 = 0;
+    let mut bits_in_acc: u32 = 0;
+
+    for &byte in bytes {
+        accumulator |= (byte as u32) << bits_in_acc;
+        bits_in_acc += 8;
+
+        while bits_in_acc >= 6 {
+            let char_index = (accumulator & 0x3F) as usize;
+
+            full_text.push(alphabet[char_index] as char);
+
+            accumulator >>= 6;
+            bits_in_acc -= 6;
+        }
+    }
+
+    let name = full_text[0..24].trim().to_string();
+    let trait1 = full_text[24..40].trim().to_string();
+    let trait2 = full_text[40..56].trim().to_string();
+    let trait3 = full_text[56..72].trim().to_string();
+
+    (name, trait1, trait2, trait3)
+}

src/card/mock.rs

@@ -0,0 +1,115 @@
+/// Mock payload 2 acting as simulated NFC card read
+pub const MOCK_PAYLOAD2: [u8; 858] = [
+    0xE9, 0x24, 0x03, 0xDA, 0x45, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0A, 0xAA, 0xA0, 0xF0, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0A, 0xAA, 0xA0, 0xF0, 0xAA, 0x0F, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xAA, 0xAA, 0x00, 0xAA,
+    0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0A, 0xAA,
+    0xAA, 0x0A, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xF0, 0xAA, 0xAA, 0xAA, 0x0A, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xF0, 0xAA, 0xAA, 0xA0, 0xAA, 0xA0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xAA, 0xAA, 0xA0, 0xAA, 0x0A, 0x0F, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xAA, 0xAA, 0xA0, 0x0A, 0x0A, 0x0F,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xAA, 0xAA, 0xAA,
+    0x00, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0A,
+    0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0x0A, 0xAA, 0xAA, 0x6A, 0xAA, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xAA, 0xFA, 0xAA, 0xA6, 0xAA, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xAF, 0xFF, 0xFA, 0xAA, 0xAA, 0xAA, 0x0F, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xAA, 0xFA, 0xAA, 0xAA, 0xAA,
+    0xFA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0xFF, 0xF0, 0xAA, 0xAA,
+    0xAA, 0xAA, 0xFF, 0xA0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xDD, 0xDD, 0xDD, 0x0F,
+    0x0A, 0xAA, 0xAA, 0xA6, 0xAA, 0xAA, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0D, 0xDF,
+    0xFF, 0xFF, 0x00, 0xAA, 0xAA, 0xA0, 0xAA, 0xA0, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0x0D, 0x00, 0x0F, 0xF0, 0xAA, 0xAA, 0xAA, 0x0F, 0x0A, 0xA0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0x0D, 0x0A, 0xAF, 0xF0, 0xAA, 0xAA, 0x0A, 0x0F, 0xFF, 0x0F, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0D, 0x00, 0x0F, 0xF0, 0xAA, 0xAA, 0xF0, 0xFF, 0xF0,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0D, 0x0E, 0x0F, 0xF0, 0xAA, 0xAA,
+    0xDD, 0xDD, 0xD0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0D, 0x00, 0x0F,
+    0xF0, 0xAF, 0xAF, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0x0D, 0x0A, 0xAF, 0xF0, 0xAA, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0x0D, 0x00, 0x0F, 0xF0, 0xAF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0D, 0xDF, 0xFF, 0xFF, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xDD, 0xDD, 0xDF, 0x0F, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x07, 0xB3, 0x11, 0xCF, 0x04,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x3B, 0x9A,
+    0x26, 0x10, 0x98, 0x23, 0xFC, 0x01, 0x00, 0x00, 0x00, 0xCE, 0xF7, 0xB2, 0xA9, 0x9B, 0xCA, 0x23,
+    0x0A, 0x00, 0x00, 0x00, 0x00, 0xD7, 0x86, 0xBA, 0xC0, 0x9C, 0xBE, 0x40, 0x98, 0xA2, 0x1F, 0x00,
+    0x00, 0x54, 0x68, 0x65, 0x20, 0x63, 0x61, 0x6B, 0x65, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x6C,
+    0x69, 0x65, 0x20, 0xF0, 0x9F, 0x8E, 0x82, 0x00, 0x00, 0x87, 0xF7, 0xB1, 0x44, 0xB0, 0x55, 0x5E,
+    0xF9, 0x22, 0xD6, 0x71, 0x45, 0xE9, 0xD5, 0xA7, 0xF8, 0x0F, 0xBE, 0x8F, 0xF6, 0xB9, 0x77, 0x62,
+    0x13, 0xF3, 0x84, 0x55, 0xD2, 0xBC, 0x4E, 0xCB, 0xDF, 0xDB, 0xC0, 0x91, 0x5F, 0x39, 0xE0, 0xF5,
+    0x95, 0x2D, 0x14, 0xBD, 0x43, 0xB2, 0x40, 0x76, 0x78, 0x00,
+];
+
+/// Mock payload 1 acting as simulated NFC card read
+pub const MOCK_PAYLOAD: [u8; 858] = [
+    0xE9, 0x24, 0x01, 0x47, 0xF2, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0x77, 0x77, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x77, 0x77, 0x77, 0x77, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0xF7, 0x77, 0x77, 0x77,
+    0x77, 0x77, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x77,
+    0x77, 0xFF, 0xFF, 0x77, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xF7, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xF7, 0xF7, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0x77, 0x77, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x7F, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0x77, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77,
+    0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0xFF, 0xFF, 0x00, 0x0F, 0xFF, 0xFF, 0xF7, 0x77, 0x7F, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0xFF, 0xFF, 0x00, 0x0F, 0xFF, 0xFF, 0xFF,
+    0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0xFF, 0xFF, 0x00, 0x00,
+    0x00, 0x0F, 0xFF, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0xFF,
+    0xFF, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x77, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0x77, 0x7F, 0xFF, 0xFF, 0x00, 0x0F, 0xFF, 0x00, 0x0F, 0x77, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xF0, 0x00, 0x17, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x07,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0xFF, 0xFF,
+    0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF,
+    0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x70, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77,
+    0x7F, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0x0F, 0xFF, 0xFF, 0xF7, 0x7F, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0x0F, 0xFF, 0xFF,
+    0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0x00,
+    0x0F, 0xFF, 0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x77, 0x7F,
+    0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xF7, 0x77, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xF7, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xF7, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x7F, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0xF7, 0x7F, 0xFF, 0xF0, 0x00,
+    0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x7F, 0x7F, 0xFF, 0x00, 0x00, 0x00, 0x07, 0x7F,
+    0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x7F, 0x7F, 0xFF, 0xFF, 0x00,
+    0x00, 0x00, 0x0F, 0xF0, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0x7F,
+    0xFF, 0xFF, 0xFF, 0x77, 0x00, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0x77, 0xF7, 0x7F, 0xFF, 0xF7, 0x77, 0x77, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x7F, 0x77, 0x77, 0x77, 0x77, 0x77, 0x00, 0x00, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0xFF, 0x77, 0x77, 0x77, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x77, 0x77, 0x77, 0x77, 0x77,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x82, 0xF9, 0x7E, 0x00, 0x94,
+    0xB2, 0xEE, 0x66, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x3B, 0x9E,
+    0x1B, 0x3B, 0x03, 0x50, 0xCA, 0xBA, 0x9B, 0x09, 0x00, 0x81, 0xFA, 0xB1, 0xEE, 0xCB, 0x7E, 0xC0,
+    0xD4, 0x8D, 0x1F, 0xDA, 0x7D, 0x43, 0x8A, 0xB6, 0x1F, 0x0B, 0x7F, 0x2D, 0x30, 0xA9, 0xDF, 0xE7,
+    0x01, 0x53, 0x70, 0x65, 0x65, 0x64, 0x79, 0x20, 0x74, 0x68, 0x69, 0x6E, 0x67, 0x20, 0x67, 0x6F,
+    0x65, 0x73, 0x20, 0x69, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x23, 0xC0, 0xD6, 0x5A, 0x9D, 0xA2, 0xAB,
+    0xC4, 0x80, 0xC3, 0x06, 0xDB, 0xE8, 0x88, 0x7A, 0x7E, 0xB2, 0x40, 0x10, 0xA2, 0xDF, 0xC0, 0x89,
+    0x03, 0x63, 0x8F, 0x4C, 0x2F, 0xBA, 0xCC, 0x17, 0x23, 0x51, 0x60, 0x27, 0x3B, 0x00, 0x1C, 0x6D,
+    0x1F, 0x8C, 0x6B, 0x3E, 0x32, 0xE2, 0x53, 0xD9, 0x8F, 0x00,
+];

src/card/model.rs

@@ -0,0 +1,11 @@
+#[derive(Debug, Clone, Copy)]
+pub struct NfcPayload<'a> {
+    pub event_encoding: &'a [u8],
+    pub card_type: u8,
+    pub card_uuid: &'a [u8],
+    pub _reserved: &'a [u8],
+    pub sprite: &'a [u8],
+    pub packed_card_text: &'a [u8],
+    pub secret: &'a [u8],
+    pub _opaque_trailer: &'a [u8],
+}

src/display.rs

@@ -0,0 +1,6 @@
+pub mod palette;
+pub mod primary_lcd;
+pub mod secondary_oled;
+pub mod sprite;
+pub mod tertiary_lcd;
+pub mod views;

src/display/palette.rs

@@ -0,0 +1,215 @@
+use embedded_graphics::pixelcolor::Rgb565;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct Rgb(pub u8, pub u8, pub u8);
+
+impl Rgb {
+    pub fn into_rgb565(self) -> Rgb565 {
+        Rgb565::new(self.0, self.1, self.2)
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct TypeStyle {
+    pub name: &'static str,
+    pub primary: Rgb,
+    pub text: Rgb,
+}
+
+pub const PALETTES: [[Rgb; 16]; 8] = [
+    // Palette Default
+    [
+        Rgb(31, 23, 35),
+        Rgb(60, 47, 82),
+        Rgb(178, 39, 65),
+        Rgb(70, 86, 165),
+        Rgb(245, 70, 76),
+        Rgb(216, 104, 48),
+        Rgb(140, 127, 144),
+        Rgb(73, 149, 243),
+        Rgb(62, 197, 75),
+        Rgb(240, 149, 72),
+        Rgb(188, 176, 179),
+        Rgb(247, 156, 136),
+        Rgb(114, 222, 235),
+        Rgb(180, 230, 86),
+        Rgb(239, 208, 129),
+        Rgb(255, 255, 255),
+    ],
+    // Palette Blueprint
+    [
+        Rgb(83, 67, 127),
+        Rgb(44, 111, 153),
+        Rgb(142, 88, 111),
+        Rgb(0, 188, 170),
+        Rgb(153, 104, 226),
+        Rgb(109, 129, 255),
+        Rgb(255, 84, 112),
+        Rgb(196, 143, 158),
+        Rgb(168, 159, 204),
+        Rgb(190, 155, 255),
+        Rgb(255, 155, 113),
+        Rgb(127, 206, 255),
+        Rgb(255, 155, 182),
+        Rgb(255, 217, 174),
+        Rgb(255, 217, 232),
+        Rgb(255, 255, 255),
+    ],
+    // Palette CYBER
+    [
+        Rgb(0, 0, 0),
+        Rgb(0, 0, 126),
+        Rgb(0, 0, 255),
+        Rgb(126, 0, 0),
+        Rgb(126, 0, 126),
+        Rgb(4, 126, 0),
+        Rgb(254, 0, 0),
+        Rgb(4, 126, 126),
+        Rgb(254, 0, 255),
+        Rgb(126, 126, 0),
+        Rgb(126, 126, 126),
+        Rgb(6, 255, 4),
+        Rgb(6, 255, 255),
+        Rgb(190, 190, 190),
+        Rgb(255, 255, 4),
+        Rgb(255, 255, 255),
+    ],
+    // Palette Nature
+    [
+        Rgb(35, 34, 40),
+        Rgb(40, 66, 97),
+        Rgb(30, 116, 83),
+        Rgb(117, 77, 69),
+        Rgb(95, 88, 84),
+        Rgb(36, 133, 166),
+        Rgb(198, 80, 70),
+        Rgb(85, 160, 88),
+        Rgb(135, 133, 115),
+        Rgb(84, 186, 210),
+        Rgb(161, 191, 65),
+        Rgb(230, 146, 138),
+        Rgb(184, 176, 149),
+        Rgb(227, 192, 84),
+        Rgb(195, 213, 199),
+        Rgb(255, 255, 255),
+    ],
+    // Palette Fossil
+    [
+        Rgb(75, 61, 68),
+        Rgb(119, 66, 81),
+        Rgb(78, 84, 99),
+        Rgb(100, 83, 85),
+        Rgb(156, 82, 78),
+        Rgb(132, 109, 89),
+        Rgb(91, 125, 115),
+        Rgb(125, 123, 98),
+        Rgb(140, 124, 121),
+        Rgb(185, 122, 96),
+        Rgb(168, 138, 94),
+        Rgb(142, 159, 125),
+        Rgb(170, 162, 93),
+        Rgb(169, 156, 141),
+        Rgb(204, 168, 123),
+        Rgb(255, 255, 255),
+    ],
+    // Palette Ghost
+    [
+        Rgb(0, 0, 0),
+        Rgb(24, 24, 24),
+        Rgb(40, 40, 40),
+        Rgb(56, 56, 56),
+        Rgb(71, 71, 71),
+        Rgb(86, 86, 86),
+        Rgb(100, 100, 100),
+        Rgb(113, 113, 113),
+        Rgb(126, 126, 126),
+        Rgb(140, 140, 140),
+        Rgb(155, 155, 155),
+        Rgb(171, 171, 171),
+        Rgb(189, 189, 189),
+        Rgb(209, 209, 209),
+        Rgb(231, 231, 231),
+        Rgb(255, 255, 255),
+    ],
+    // Palette Daemon
+    [
+        Rgb(0, 3, 60),
+        Rgb(96, 0, 136),
+        Rgb(0, 56, 132),
+        Rgb(42, 46, 121),
+        Rgb(0, 82, 96),
+        Rgb(177, 5, 133),
+        Rgb(255, 0, 78),
+        Rgb(172, 41, 206),
+        Rgb(0, 157, 74),
+        Rgb(0, 138, 197),
+        Rgb(78, 110, 168),
+        Rgb(255, 92, 255),
+        Rgb(10, 255, 82),
+        Rgb(0, 247, 255),
+        Rgb(173, 212, 250),
+        Rgb(255, 255, 255),
+    ],
+    // Palette Fairy
+    [
+        Rgb(40, 40, 46),
+        Rgb(108, 86, 113),
+        Rgb(135, 168, 137),
+        Rgb(249, 130, 132),
+        Rgb(176, 169, 228),
+        Rgb(222, 163, 139),
+        Rgb(172, 204, 228),
+        Rgb(254, 170, 228),
+        Rgb(217, 200, 191),
+        Rgb(255, 195, 132),
+        Rgb(176, 235, 147),
+        Rgb(179, 227, 218),
+        Rgb(233, 245, 157),
+        Rgb(255, 230, 198),
+        Rgb(255, 247, 160),
+        Rgb(255, 255, 255),
+    ],
+];
+
+pub const TYPE_STYLES: [TypeStyle; 8] = [
+    TypeStyle {
+        name: "Default",
+        primary: Rgb(0xD8, 0x68, 0x30),
+        text: Rgb(0xFF, 0xFF, 0xFF),
+    },
+    TypeStyle {
+        name: "Blueprint",
+        primary: Rgb(0x6D, 0x81, 0xFF),
+        text: Rgb(0xFF, 0xFF, 0xFF),
+    },
+    TypeStyle {
+        name: "CYBER",
+        primary: Rgb(0xFF, 0xFF, 0x04),
+        text: Rgb(0x00, 0x00, 0x00),
+    },
+    TypeStyle {
+        name: "Nature",
+        primary: Rgb(0x55, 0xA0, 0x58),
+        text: Rgb(0xFF, 0xFF, 0xFF),
+    },
+    TypeStyle {
+        name: "Fossil",
+        primary: Rgb(0xB9, 0x7A, 0x60),
+        text: Rgb(0xFF, 0xFF, 0xFF),
+    },
+    TypeStyle {
+        name: "Ghost",
+        primary: Rgb(0xAB, 0xAB, 0xAB),
+        text: Rgb(0xFF, 0xFF, 0xFF),
+    },
+    TypeStyle {
+        name: "Daemon",
+        primary: Rgb(0x60, 0x00, 0x88),
+        text: Rgb(0xFF, 0xFF, 0xFF),
+    },
+    TypeStyle {
+        name: "Fairy",
+        primary: Rgb(0xB0, 0xA9, 0xE4),
+        text: Rgb(0xFF, 0xFF, 0xFF),
+    },
+];

src/display/primary_lcd.rs

@@ -0,0 +1,60 @@
+use display_interface_spi::SPIInterface;
+use embedded_graphics::draw_target::DrawTarget;
+use embedded_graphics::pixelcolor::Rgb565;
+use embedded_graphics::prelude::RgbColor;
+use embedded_hal_bus::spi::ExclusiveDevice;
+use esp_hal::delay::Delay;
+use esp_hal::gpio::{Level, Output, OutputConfig};
+use esp_hal::peripherals::{GPIO10, GPIO11, GPIO12, GPIO35, GPIO36, GPIO37, SPI2};
+use esp_hal::spi::{master::{Config, Spi}, Mode};
+use esp_hal::time::Rate;
+use ili9341::{DisplaySize240x320, Ili9341, Orientation};
+
+pub type PrimaryLcdDisplay<'a> = Ili9341<
+    SPIInterface<
+        ExclusiveDevice<Spi<'a, esp_hal::Blocking>, Output<'a>, Delay>,
+        Output<'a>,
+    >,
+    Output<'a>,
+>;
+
+pub fn init_primary_lcd(
+    spi2: SPI2<'static>,
+    sck: GPIO36<'static>,
+    mosi: GPIO35<'static>,
+    miso: GPIO37<'static>,
+    cs: GPIO11<'static>,
+    reset: GPIO10<'static>,
+    dc: GPIO12<'static>,
+    delay: &mut Delay,
+) -> PrimaryLcdDisplay<'static> {
+    let freq = Rate::from_khz(60_000);
+    log::info!("Display freq: {freq}");
+
+    let spi_bus = Spi::new(
+        spi2,
+        Config::default().with_frequency(freq).with_mode(Mode::_0),
+    )
+    .unwrap()
+    .with_sck(sck)
+    .with_mosi(mosi)
+    .with_miso(miso);
+
+    let cs_main = Output::new(cs, Level::High, OutputConfig::default());
+    let spi_dev = ExclusiveDevice::new(spi_bus, cs_main, *delay).unwrap();
+    let reset_main = Output::new(reset, Level::High, OutputConfig::default());
+    let spi_dc = Output::new(dc, Level::High, OutputConfig::default());
+    let iface = SPIInterface::new(spi_dev, spi_dc);
+
+    let mut display = Ili9341::new(
+        iface,
+        reset_main,
+        delay,
+        Orientation::Portrait,
+        DisplaySize240x320,
+    )
+    .unwrap();
+
+    display.clear(Rgb565::BLACK).unwrap();
+    display
+}

src/display/secondary_oled.rs

@@ -0,0 +1 @@
+// Secondary OLED module

src/display/sprite.rs

@@ -0,0 +1,62 @@
+use embedded_graphics::{geometry::Size, pixelcolor::Rgb565, primitives::Rectangle, prelude::Point};
+use embedded_graphics_core::draw_target::DrawTarget;
+use crate::display::palette::Rgb;
+
+pub fn render_sprite_onto_ili9341<D>(ili9341: &mut D, sprite: &[u8], palette: &[Rgb; 16])
+where
+    D: DrawTarget<Color = Rgb565>,
+{
+    let pixel_count = sprite.len() * 2;
+    if pixel_count == 0 {
+        return;
+    }
+
+    // OPTIMIZATION 1: Pre-compute the 16-color palette to Rgb565 once.
+    let mut palette565 = [Rgb565::new(0, 0, 0); 16];
+    for (i, Rgb(r, g, b)) in palette.iter().enumerate() {
+        palette565[i] = Rgb565::new(*r >> 3, *g >> 2, *b >> 3);
+    }
+
+    let mut src_width = 1usize;
+    while src_width * src_width < pixel_count {
+        src_width += 1;
+    }
+
+    let target_width = 240usize;
+    let scale = core::cmp::max(1, target_width / src_width);
+
+    for y in 0..src_width {
+        for x in 0..src_width {
+            let pixel_index = y * src_width + x;
+            if pixel_index >= pixel_count {
+                break;
+            }
+
+            // Bitwise operations are slightly faster than division/modulo
+            let byte_index = pixel_index >> 1;
+            let pixel_byte = sprite[byte_index];
+            let color_index = if pixel_index.is_multiple_of(2) {
+                (pixel_byte >> 4) & 0x0F
+            } else {
+                pixel_byte & 0x0F
+            };
+
+            let color = palette565[color_index as usize];
+
+            let start_x = (x * scale) as i32;
+            let start_y = (y * scale) as i32;
+            let end_x = core::cmp::min(start_x + scale as i32, target_width as i32);
+            let end_y = core::cmp::min(start_y + scale as i32, target_width as i32);
+
+            let width = u32::try_from(end_x - start_x).unwrap();
+            let height = u32::try_from(end_y - start_y).unwrap();
+
+            let area = Rectangle::new(
+                Point::new(start_x.try_into().unwrap(), start_y.try_into().unwrap()),
+                Size::new(width, height),
+            );
+
+            let _ = ili9341.fill_solid(&area, color);
+        }
+    }
+}

src/display/tertiary_lcd.rs

@@ -0,0 +1 @@
+// Tertiary LCD module

src/display/views.rs

@@ -0,0 +1,3 @@
+pub mod card_view;
+pub mod menu_view;
+pub mod status_bar;

src/display/views/card_view.rs

@@ -0,0 +1,98 @@
+use alloc::{format, string::String};
+use embedded_graphics::mono_font::MonoTextStyle;
+use embedded_graphics::mono_font::ascii::FONT_6X10;
+use embedded_graphics::pixelcolor::Rgb565;
+use embedded_graphics::prelude::Point;
+use embedded_graphics::prelude::RgbColor;
+use embedded_graphics::text::Text;
+use embedded_graphics::{Drawable, geometry::Size, primitives::Rectangle};
+use embedded_graphics_core::draw_target::DrawTarget;
+use crate::card::decoder::{decode_known_event, decode_packed_card_text, decode_secret, split_nfc_hex};
+use crate::card::model::NfcPayload;
+use crate::display::palette::{PALETTES, TYPE_STYLES};
+use crate::display::sprite::render_sprite_onto_ili9341;
+
+pub fn render_nfc_payload<D>(display: &mut D, payload: &[u8; 858])
+where
+    D: DrawTarget<Color = Rgb565>,
+    D::Error: core::fmt::Debug,
+{
+    let nfc_payload: Option<NfcPayload<'_>> = split_nfc_hex(payload);
+
+    if let Some(nfc_payload) = nfc_payload {
+        let (name, trait1, trait2, trait3) = decode_packed_card_text(nfc_payload.packed_card_text);
+        let secret = decode_secret(nfc_payload.secret);
+
+        let background = Rectangle::new(
+            Point::new(0, 0),
+            Size::new(240, 320),
+        );
+        let bg_color: Rgb565 = TYPE_STYLES[(nfc_payload.card_type - 1) as usize]
+            .primary
+            .into_rgb565();
+
+        let _ = display.fill_solid(&background, bg_color);
+
+        let style = MonoTextStyle::new(&FONT_6X10, Rgb565::WHITE);
+        Text::new(&format!("Name: {}", name), Point::new(20, 240), style)
+            .draw(display)
+            .unwrap();
+        Text::new(
+            &format!(
+                "Type: {}",
+                TYPE_STYLES[(nfc_payload.card_type - 1) as usize].name
+            ),
+            Point::new(20, 250),
+            style,
+        )
+        .draw(display)
+        .unwrap();
+        Text::new(
+            &format!(
+                "Event: {}",
+                decode_known_event(nfc_payload.event_encoding).unwrap_or("Unknown")
+            ),
+            Point::new(20, 260),
+            style,
+        )
+        .draw(display)
+        .unwrap();
+        Text::new(
+            &format!(
+                "UUID: {}",
+                nfc_payload
+                    .card_uuid
+                    .iter()
+                    .map(|b| format!("{:02X}", b))
+                    .collect::<String>()
+            ),
+            Point::new(20, 270),
+            style,
+        )
+        .draw(display)
+        .unwrap();
+        Text::new(&format!("Trait1: {}", trait1), Point::new(20, 280), style)
+            .draw(display)
+            .unwrap();
+        Text::new(&format!("Trait2: {}", trait2), Point::new(20, 290), style)
+            .draw(display)
+            .unwrap();
+        Text::new(&format!("Trait3: {}", trait3), Point::new(20, 300), style)
+            .draw(display)
+            .unwrap();
+        Text::new(&format!("Secret: {}", secret), Point::new(20, 310), style)
+            .draw(display)
+            .unwrap();
+
+        render_sprite_onto_ili9341(
+            display,
+            nfc_payload.sprite,
+            &PALETTES[(nfc_payload.card_type - 1) as usize],
+        );
+    } else {
+        log::error!(
+            "NFC payload too short to decode packed text: {} bytes",
+            payload.len()
+        );
+    }
+}

src/display/views/menu_view.rs

@@ -0,0 +1 @@
+// Menu view module

src/display/views/status_bar.rs

@@ -0,0 +1 @@
+// Status bar view module

src/drivers.rs

@@ -0,0 +1 @@
+pub mod nfc_pn532;

src/drivers/nfc_pn532.rs

@@ -0,0 +1,146 @@
+use alloc::vec::Vec;
+use core::convert::Infallible;
+use esp_hal::gpio::interconnect::{PeripheralInput, PeripheralOutput};
+use esp_hal::i2c::master::{Config as I2cConfig, I2c};
+use esp_hal::peripherals::I2C0;
+use esp_hal::time::{Duration, Instant, Rate};
+use log::{error, info};
+use pn532::i2c::I2CInterface;
+use pn532::requests::SAMMode;
+use pn532::{nb, Pn532, Request};
+
+/// Timer implementation required by `pn532::CountDown`.
+pub struct TimerWrapper {
+    start: Instant,
+    duration: Duration,
+    counter: u32,
+}
+
+impl TimerWrapper {
+    pub fn new() -> Self {
+        Self {
+            start: Instant::now(),
+            duration: Duration::ZERO,
+            counter: 0,
+        }
+    }
+}
+
+impl Default for TimerWrapper {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl pn532::CountDown for TimerWrapper {
+    type Time = Duration;
+
+    fn start<T>(&mut self, timeout: T)
+    where
+        T: Into<Self::Time>,
+    {
+        self.start = Instant::now();
+        self.duration = timeout.into();
+        self.counter = 0;
+    }
+
+    fn wait(&mut self) -> nb::Result<(), Infallible> {
+        let elapsed = self.start.elapsed();
+        self.counter += 1;
+        if elapsed >= self.duration {
+            Ok(())
+        } else {
+            Err(nb::Error::WouldBlock)
+        }
+    }
+}
+
+pub type Pn532Device<'a> = Pn532<I2CInterface<I2c<'a, esp_hal::Blocking>>, TimerWrapper, 32>;
+
+/// PN532 NFC reader driver.
+pub struct NfcPn532Driver<'a> {
+    pn532: Pn532Device<'a>,
+}
+
+impl<'a> NfcPn532Driver<'a> {
+    pub fn new<SDA, SCL>(i2c0: I2C0<'static>, sda: SDA, scl: SCL) -> Self
+    where
+        SDA: PeripheralInput<'static> + PeripheralOutput<'static>,
+        SCL: PeripheralInput<'static> + PeripheralOutput<'static>,
+    {
+        let config = I2cConfig::default().with_frequency(Rate::from_khz(20));
+        let i2c = I2c::new(i2c0, config)
+            .expect("Failed to init I2C")
+            .with_sda(sda)
+            .with_scl(scl);
+
+        let pn532 = Pn532::new(I2CInterface { i2c }, TimerWrapper::new());
+        Self { pn532 }
+    }
+
+    pub fn configure_sam(&mut self, timeout: Duration) -> Result<(), ()> {
+        if let Err(e) = self.pn532.process(
+            &Request::sam_configuration(SAMMode::Normal, false),
+            0,
+            timeout,
+        ) {
+            error!("Could not initialize PN532: {e:?}");
+            Err(())
+        } else {
+            info!("Successfully init'ed PN532");
+            Ok(())
+        }
+    }
+
+    pub fn poll_target(&mut self, timeout: Duration) -> Result<(), ()> {
+        match self.pn532.process(&Request::INLIST_ONE_ISO_A_TARGET, 23, timeout) {
+            Ok(uid) => {
+                info!("uid = {uid:?}");
+                Ok(())
+            }
+            Err(e) => {
+                info!("No NFC card found: {e:?}");
+                Err(())
+            }
+        }
+    }
+
+    pub fn parse_nfc_page(iteration: u8, bytes: &[u8]) -> Result<[u8; 4], ()> {
+        let success = bytes.first().is_some_and(|x| *x == 0);
+        if success {
+            let mut arr = [0; 4];
+            arr.copy_from_slice(&bytes[1..5]);
+            Ok(arr)
+        } else {
+            info!("err  {iteration}: {:02x?}", bytes);
+            Err(())
+        }
+    }
+
+    pub fn read_card_data(&mut self) -> Result<Vec<u8>, ()> {
+        let ms_1000 = Duration::from_millis(1000);
+        self.poll_target(Duration::from_secs(10))?;
+
+        let mut data: Vec<u8> = Vec::with_capacity(858);
+
+        for i in 0x04..=230 {
+            let mut parse_result = Err(());
+            while parse_result.is_err() {
+                let Ok(result) = self.pn532.process(&Request::ntag_read(i), 17, ms_1000) else {
+                    continue;
+                };
+                parse_result = Self::parse_nfc_page(i, result);
+            }
+            let bytes = parse_result.unwrap();
+            data.extend(bytes);
+        }
+
+        info!("Full data: {data:02x?}");
+        Ok(data)
+    }
+    
+    pub fn device_mut(&mut self) -> &mut Pn532Device<'a> {
+        &mut self.pn532
+    }
+}
+

src/lib.rs

@@ -0,0 +1,10 @@
+#![no_std]
+
+extern crate alloc;
+
+pub mod card;
+pub mod display;
+pub mod drivers;
+pub mod navigation;
+pub mod network;
+pub mod storage;

src/navigation.rs

@@ -0,0 +1,2 @@
+pub mod input;
+pub mod state;

src/navigation/input.rs

@@ -0,0 +1,15 @@
+use esp_hal::gpio::{Input, InputConfig, Pull};
+use esp_hal::peripherals::GPIO38;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum NavCommand {
+    NextCard,
+    PrevCard,
+    Select,
+    ScanTag,
+}
+
+pub fn init_navigation_button(pin: GPIO38<'static>) -> Input<'static> {
+    let button_config = InputConfig::default().with_pull(Pull::Up);
+    Input::new(pin, button_config)
+}

src/navigation/state.rs

@@ -0,0 +1,35 @@
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ScreenMode {
+    CardDetail,
+    DexGrid,
+    Settings,
+}
+
+#[derive(Debug, Clone, Copy)]
+pub struct NavigationState {
+    pub current_screen: ScreenMode,
+    pub card_index: usize,
+    pub use_first_payload: bool,
+}
+
+impl Default for NavigationState {
+    fn default() -> Self {
+        Self {
+            current_screen: ScreenMode::CardDetail,
+            card_index: 0,
+            use_first_payload: true,
+        }
+    }
+}
+
+impl NavigationState {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn toggle_payload(&mut self) -> bool {
+        let current = self.use_first_payload;
+        self.use_first_payload = !self.use_first_payload;
+        current
+    }
+}

src/network.rs

@@ -0,0 +1,2 @@
+pub mod api_client;
+pub mod wifi;

src/network/api_client.rs

@@ -0,0 +1 @@
+// Network api_client module

src/network/wifi.rs

@@ -0,0 +1,67 @@
+use embassy_executor::Spawner;
+
+#[cfg(not(feature = "wokwi"))]
+pub async fn setup_wifi(
+    wifi: esp_hal::peripherals::WIFI<'static>,
+    flash: esp_hal::peripherals::FLASH<'static>,
+    spawner: &Spawner,
+) {
+    let nvs = esp_hal_wifimanager::Nvs::new(0x9000, 0x6000, flash).unwrap();
+
+    let mut wm_settings = esp_hal_wifimanager::WmSettings::default();
+
+    wm_settings.ssid.clear();
+    _ = core::fmt::write(
+        &mut wm_settings.ssid,
+        format_args!("CreatureDex-{:X}", esp_hal_wifimanager::get_efuse_mac()),
+    );
+
+    wm_settings.wifi_conn_timeout = 30000;
+    wm_settings.esp_reset_timeout = Some(300000); // 5min
+
+    let wifi_res = esp_hal_wifimanager::init_wm(wm_settings, spawner, Some(&nvs), wifi, None).await;
+
+    log::info!("wifi_res: {wifi_res:?}");
+}
+
+#[cfg(feature = "wokwi")]
+pub async fn setup_wifi(
+    wifi: esp_hal::peripherals::WIFI<'static>,
+    flash: esp_hal::peripherals::FLASH<'static>,
+    spawner: &Spawner,
+) {
+    log::info!("Wokwi mode active: pre-seeding WiFi Manager with Wokwi credentials");
+
+    // Preload connection data so init_wm can connect immediately without AP setup.
+    let nvs = match esp_hal_wifimanager::Nvs::new(0x9000, 0x6000, flash) {
+        Ok(nvs) => nvs,
+        Err(e) => {
+            log::error!("Failed to initialize NVS for Wokwi: {e:?}");
+            return;
+        }
+    };
+
+    if let Err(e) = nvs
+        .set(
+            esp_hal_wifimanager::WIFI_NVS_KEY,
+            "{\"ssid\":\"Wokwi-GUEST\",\"psk\":\"\",\"data\":{}}",
+        )
+        .await
+    {
+        log::error!("Failed to store Wokwi WiFi config in NVS: {e:?}");
+        return;
+    }
+
+    let mut wm_settings = esp_hal_wifimanager::WmSettings::default();
+
+    // Wokwi simulation uses a default open network called "Wokwi-GUEST"
+    wm_settings.ssid.clear();
+    _ = core::fmt::write(&mut wm_settings.ssid, format_args!("Wokwi-GUEST"));
+
+    wm_settings.wifi_conn_timeout = 30000;
+
+    // Initialize Wi-Fi connection through WiFi Manager using the pre-seeded NVS data.
+    let wifi_res = esp_hal_wifimanager::init_wm(wm_settings, spawner, Some(&nvs), wifi, None).await;
+
+    log::info!("Wokwi wifi_res: {wifi_res:?}");
+}

src/storage.rs

@@ -0,0 +1,2 @@
+pub mod dex_db;
+pub mod nvs;

src/storage/dex_db.rs

@@ -0,0 +1 @@
+// Storage dex_db module

src/storage/nvs.rs

@@ -0,0 +1 @@
+// Storage nvs module

wokwi.toml

@@ -0,0 +1,5 @@
+[wokwi]
+version = 1
+gdbServerPort = 3333
+elf = "target/xtensa-esp32s3-none-elf/debug/creaturedex"
+firmware = "target/xtensa-esp32s3-none-elf/debug/creaturedex"