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due_obd2/due_obd2/due_obd2.ino

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+/**
+Program to create a car monitor display using:
+    - Arduino Due
+    - a TFT display (https://www.tinytronics.nl/shop/en/displays/tft/3.5-inch-tft-display-320*480-pixels-mega-compatible-ili9486)
+    - ELM327 Bluetooth OBD2 scanner
+    - FSC-DB004 (BT 836B) bluetooth module
+*/
+
+/* include UTFT library */
+#include <UTFT.h>
+
+#define DEBUG 1
+
+/* pins */
+#define PIN_BT_RX 19
+#define PIN_BT_TX 18
+#define PIN_BT_STATE 3 /* connected/disconnected state of BT */
+
+/* display size */
+#define LCD_W 480
+#define LCD_H 320
+
+extern uint8_t BigFont[];
+extern uint8_t SmallFont[];
+
+char should_clear = 1;
+
+/* Set the pins for the display and dev board                                */
+/* Standard Arduino Mega/Due shield            : <display model>,38,39,40,41 */
+UTFT display(ILI9486,38,39,40,41);
+
+void setup() {
+  randomSeed(analogRead(0));
+
+  #if (DEBUG == 1)
+  Serial.begin(9600);
+  #endif
+  /* Serial1 is bluetooth module, pin 18 and 19. */
+  Serial1.begin(115200);
+
+  /* Init display */
+  display.InitLCD();
+  display.setFont(BigFont);
+
+  #if (DEBUG == 1)
+  Serial.println("Starting");
+  #endif
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  while (Serial1.available()) {
+    char rec = Serial1.read();
+    #if (DEBUG == 1)
+    Serial.println(rec);
+    #endif
+  }
+
+  if (should_clear) 
+  {
+    display.clrScr();
+    display.setColor(255, 0, 166);
+    display.fillRect(LCD_W/2-200,LCD_H/2-100,LCD_W/2+200,LCD_H/2+100);
+    display.setColor(0, 247, 255);
+    display.print("OBD2 display yeet",CENTER,LCD_H/2);
+    delay(10);
+    should_clear = 0;
+  }
+
+
+}