final

code/src/main.py

@@ -1,9 +1,10 @@
 #!/bin/python
 
 import dht
-from machine import Pin, Timer, RTC
+from machine import Pin, Timer, RTC, SoftI2C
 from micropyserver import MicroPyServer
 from micropyserver_utils import send_response, get_request_post_params
+from i2c_lcd import I2cLcd
 import ntptime
 import os
 import io
@@ -12,6 +13,12 @@ DHT_PIN = 26
 RELAY_PIN = 4
 UPDATE_INTERVAL_S = 60
 MAX_LOG_SIZE = 3 * 1024 * 1024 # MegaByte
+I2C_SCL = Pin(19)
+I2C_SDA = Pin(18)
+I2C_FREQ = 100000
+I2C_ADDR = 39
+DISP_ROWS = 2
+DISP_COLS = 16
 
 name = "Test Sensor"
 
@@ -26,6 +33,8 @@ dht = dht.DHT22(Pin(DHT_PIN))
 relay = Pin(RELAY_PIN, Pin.OUT)
 update_timer = Timer(0)
 index_template = ""
+i2c = SoftI2C(scl=I2C_SCL, sda=I2C_SDA, freq=I2C_FREQ)
+lcd = I2cLcd(i2c, I2C_ADDR, DISP_ROWS, DISP_COLS)
 
 humidity_limit = 80
 
@@ -83,6 +92,15 @@ def update(_):
     update_relay()
 
     write_log()
+
+    update_disp()
+    
+def update_disp():
+    global lcd, temp, humidity
+    lcd.clear()
+    text = f'Temp: {temp:2.1f}ßC    Humidity: {humidity:2.1f}%'
+    lcd.putstr(text)
+
     
 def update_relay():
     if high_humidity():
@@ -219,6 +237,7 @@ def load_index_template():
 def main():
     global server
     init()
+    update(None)
     server.start()
 
 

firmware/boot.py

@@ -1,3 +1,4 @@
+from time import sleep
 def do_connect():
     import network
     wlan = network.WLAN(network.STA_IF)
@@ -6,14 +7,10 @@ def do_connect():
         print('connecting to network...')
         wlan.connect('nubbe', 'MFhBB!MThAuE!')
         while not wlan.isconnected():
+            sleep(0.1)
+            print("Connecting")
             pass
     print('network config:', wlan.ifconfig())
 
 do_connect()
-import gc
-import webrepl
-
-webrepl.start()
-
-gc.collect()