commit 2cbcb9d039d57faad1deb4f3bbe876914f87af02
Author: 0xFEEDC0DE64 <daniel@brunner.ninja>
Date:   Mon Apr 25 20:23:18 2022 +0200

    Initial commit

diff --git a/bobbycar-buttonboard-firmware.ino b/bobbycar-buttonboard-firmware.ino
new file mode 100644
index 0000000..f00f172
--- /dev/null
+++ b/bobbycar-buttonboard-firmware.ino
@@ -0,0 +1,175 @@
+#include <ezButton.h>
+
+#include <Arduino.h>
+#include <eXoCAN.h>
+
+#define BTN1 PB4
+#define BTN2 PB3
+#define BTN3 PA15
+#define BTN4 PB12
+#define BTN5 PB11
+#define BTN6 PB10
+
+#define MDBT1 PB7
+#define MDBT2 PA8
+#define MDBT3 PB13
+#define MDBT4 PB0
+
+#define MDLED4 PB6
+#define MDLED3 PB15
+#define MDLED2 PB14
+#define MDLED1 PB1
+
+
+int txMsgID = 0x100;
+int rxMsgID = 0x180;
+uint8_t txData[1]{0x00};
+uint8_t txDataLen = 1;
+uint32_t txDly = 5000; // mSec
+
+
+int id, fltIdx;
+uint8_t rxbytes[8];
+eXoCAN can;
+
+
+ezButton ModeButton1(MDBT1);
+ezButton ModeButton2(MDBT2);
+ezButton ModeButton3(MDBT3);
+ezButton ModeButton4(MDBT4);
+
+ezButton Button1(BTN1);
+ezButton Button2(BTN2);
+ezButton Button3(BTN3);
+ezButton Button4(BTN4);
+ezButton Button5(BTN5);
+ezButton Button6(BTN6);
+
+
+void setup()
+{
+  can.begin(STD_ID_LEN, BR250K, PORTA_11_12_WIRE_PULLUP); // 11b IDs, 250k bit rate, no transceiver chip, portA pins 11,12
+  can.filterMask16Init(0, 0, 0x7ff, 0, 0);                // filter bank 0, filter 0: don't pass any, flt 1: pass all msgs
+
+  pinMode(MDLED1, OUTPUT);
+  pinMode(MDLED2, OUTPUT);
+  pinMode(MDLED3, OUTPUT);
+  pinMode(MDLED4, OUTPUT);
+
+  ModeButton1.setDebounceTime(50); // set debounce time to 50 milliseconds
+  ModeButton2.setDebounceTime(50); // set debounce time to 50 milliseconds
+  ModeButton3.setDebounceTime(50); // set debounce time to 50 milliseconds
+  ModeButton4.setDebounceTime(50); // set debounce time to 50 milliseconds
+
+
+  Button1.setDebounceTime(50); // set debounce time to 50 milliseconds
+  Button2.setDebounceTime(50); // set debounce time to 50 milliseconds
+  Button3.setDebounceTime(50); // set debounce time to 50 milliseconds
+  Button4.setDebounceTime(50); // set debounce time to 50 milliseconds
+  Button5.setDebounceTime(50); // set debounce time to 50 milliseconds
+  Button6.setDebounceTime(50); // set debounce time to 50 milliseconds
+}
+
+
+void signal_can(uint8_t button_number, bool on_off)
+{
+
+  txData[0] = button_number;
+  txMsgID = 0x100|on_off;
+    
+  can.transmit(txMsgID, txData, txDataLen);
+  
+}
+
+uint32_t last = 0;
+void loop()
+{
+
+  ModeButton1.loop(); // MUST call the loop() function first
+  ModeButton2.loop(); // MUST call the loop() function first
+  ModeButton3.loop(); // MUST call the loop() function first
+  ModeButton4.loop(); // MUST call the loop() function first
+  
+  Button1.loop(); // MUST call the loop() function first
+  Button2.loop(); // MUST call the loop() function first
+  Button3.loop(); // MUST call the loop() function first
+  Button4.loop(); // MUST call the loop() function first
+  Button5.loop(); // MUST call the loop() function first
+  Button6.loop(); // MUST call the loop() function first
+
+
+  if(Button1.isPressed())
+    signal_can(1,1);
+    
+  if(Button1.isReleased())
+    signal_can(1,0);
+
+  if(Button2.isPressed())
+    signal_can(2,1);
+    
+  if(Button2.isReleased())
+    signal_can(2,0);
+
+  if(Button3.isPressed())
+    signal_can(3,1);
+    
+  if(Button3.isReleased())
+    signal_can(3,0);
+
+  if(Button4.isPressed())
+    signal_can(4,1);
+    
+  if(Button4.isReleased())
+    signal_can(4,0);
+
+  if(Button5.isPressed())
+    signal_can(5,1);
+    
+  if(Button5.isReleased())
+    signal_can(5,0);
+
+  if(Button6.isPressed())
+    signal_can(6,1);
+    
+  if(Button6.isReleased())
+    signal_can(6,0);
+  
+
+  if(ModeButton1.isPressed())
+    signal_can(10,1);
+   
+  if(ModeButton1.isReleased())
+    signal_can(10,0);
+
+  if(ModeButton2.isPressed())
+    signal_can(11,1);
+   
+  if(ModeButton2.isReleased())
+    signal_can(11,0);
+
+  if(ModeButton3.isPressed())
+    signal_can(12,1);
+   
+  if(ModeButton3.isReleased())
+    signal_can(12,0);
+
+  if(ModeButton4.isPressed())
+    signal_can(13,1);
+   
+  if(ModeButton4.isReleased())
+    signal_can(13,0);
+
+
+
+  if (can.receive(id, fltIdx, rxbytes) > -1) // poll for rx
+  {
+    if (id == rxMsgID)
+    {
+      digitalWrite(MDLED1, rxbytes[0] & 0x01);
+      digitalWrite(MDLED2, rxbytes[0] & 0x02);
+      digitalWrite(MDLED3, rxbytes[0] & 0x04);
+      digitalWrite(MDLED4, rxbytes[0] & 0x08);
+    }
+  }
+
+}