Make the baud rate of the CAN bus car-specific.

RaceChronoDiyBleDevice.ino

@@ -17,7 +17,6 @@ const int IRQ_PIN = 9;
 
 const long QUARTZ_CLOCK_FREQUENCY = 16 * 1E6;  // 16 MHz.
 const uint32_t SPI_FREQUENCY = 10 * 1E6;  // 10 MHz.
-const long BAUD_RATE = 500 * 1E3;  // 500k.
 
 bool isCanBusReaderActive = false;
 long lastCanMessageReceivedMs;

config.h

@@ -1,7 +1,7 @@
 #if !defined(RACECHRONO_BIY_BLE_DEVICE_CONFIG_H)
 #define RACECHRONO_BIY_BLE_DEVICE_CONFIG_H
 
-// Change the value
+// Change the value to customize the name of your device.
 #define DEVICE_NAME "BLE CAN device demo"
 
 // We use RaceChronoPidMap to keep track of stuff for each CAN ID.
@@ -11,13 +11,19 @@
 const uint8_t DEFAULT_UPDATE_RATE_DIVIDER = 10;
 
 // You need to pick one of the provided configurations below, or define your own
-// configuration. Your configuration should define the following two functions:
+// configuration. Your configuration should define the following constant and
+// function:
+
+// Defines the baud rate to use for the CAN bus. For example, 500k baud rate
+// should be written as 500 * 1e3.
+extern const long BAUD_RATE;  // 500k.
 
 // Returns an "update rate divider for a given CAN ID.
 // If the value is N, only every Nth message received from the CAN bus will be
 // communicated to RaceChrono via BLE.
 uint8_t getUpdateRateDivider(uint32_t can_id);
 
+
 // Here are some configurations you can pick from by uncommenting one of the
 // following lines:
 //#include "configs/ft86_gen1.h"

configs/ft86_gen1.h

@@ -2,7 +2,9 @@
 // (2013-2020 model years).
 
 #if !defined(RACECHRONO_BIY_BLE_DEVICE_FT86_GEN1_H)
-#define RACECHRONO_BIY_BLE_DEVICE_FT86_GEN1_H)
+#define RACECHRONO_BIY_BLE_DEVICE_FT86_GEN1_H
+
+const long BAUD_RATE = 500 * 1e3;  // 500k.
 
 uint8_t getUpdateRateDivider(uint32_t can_id) {
   switch (can_id) {

configs/ft86_gen2.h

@@ -2,7 +2,9 @@
 // (2022+ model years).
 
 #if !defined(RACECHRONO_BIY_BLE_DEVICE_FT86_GEN2_H)
-#define RACECHRONO_BIY_BLE_DEVICE_FT86_GEN2_H)
+#define RACECHRONO_BIY_BLE_DEVICE_FT86_GEN2_H
+
+const long BAUD_RATE = 500 * 1e3;  // 500k.
 
 uint8_t getUpdateRateDivider(uint32_t can_id) {
   // This is sent over the CAN bus 50 times per second and includes brake