From 25e653765c5ec59980f894b1a0e1a0948455f3c6 Mon Sep 17 00:00:00 2001
From: Jonas Zeunert <zeunert@rhrk.uni-kl.de>
Date: Fri, 10 Jan 2020 23:10:03 +0100
Subject: [PATCH] wtf

---
 .../src/output/detail/DisplayBoardPinController.cpp       | 8 +++++++-
 .../src/output/detail/DisplayBoardPinController.h         | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp b/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp
index b42643e..6ecff14 100644
--- a/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp
+++ b/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp
@@ -19,10 +19,17 @@ DisplayBoardPinController::DisplayBoardPinController(std::map<std::string, uint8
   pins_display_board{std::move(pins_display)}
 {
   initialize_pins_output(0, pins_display.begin(), pins_display.end());
+  
+  clear();
 
   CLOG(DEBUG, OUTPUT_LOGGER) << "Created DisplayBoardPinController";
 }
 
+void DisplayBoardPinController::clear()
+{
+  std::for_each(this->pins_display_board.begin(), this->pins_display_board.end(), [](uint8_t pin) { write_pin(pin, 0); });
+}
+
 DisplayBoardPinController::DisplayBoardPinController() :
   pins_display_board{}
 {
@@ -49,7 +56,6 @@ void DisplayBoardPinController::write_display(const items::OutputDisplay &displa
   }
 }
 
-
 void DisplayBoardPinController::write_display_digit(uint8_t display_address, uint8_t content, uint8_t position) const
 {
   select_display_segment(position);
diff --git a/FlippR-Driver/src/output/detail/DisplayBoardPinController.h b/FlippR-Driver/src/output/detail/DisplayBoardPinController.h
index 86a1a76..2a371e8 100644
--- a/FlippR-Driver/src/output/detail/DisplayBoardPinController.h
+++ b/FlippR-Driver/src/output/detail/DisplayBoardPinController.h
@@ -31,6 +31,7 @@ public:
   void set_pin_map(std::map<std::string, uint8_t> & pins_display);
 
 private:
+  void clear();
   void write_display_digit(uint8_t display_address, uint8_t content, uint8_t position) const;
   void select_display_segment(uint8_t digit) const;
   void select_display_digit(uint8_t content) const;