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@ -15,10 +15,10 @@
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// by JbLb
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// • Converted to platformio
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// • Adapted to Arduino leonardo to use CDC serial interface
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// • Serial1 connected to hoverboard board
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// • Serial1 connected to hoverboard board
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// • CDC used to display data on serial monitor
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//
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//
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// CONFIGURATION on the hoverboard side in config.h:
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// • Option 1: Serial on Left Sensor cable (long wired cable)
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// #define CONTROL_SERIAL_USART2
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@ -34,7 +34,7 @@
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#define HOVER_SERIAL_BAUD 38400 // [-] Baud rate for HoverSerial (used to communicate with the hoverboard)
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#define SERIAL_BAUD 115200 // [-] Baud rate for built-in Serial (used for the Serial Monitor)
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#define START_FRAME 0xAAAA // [-] Start frme definition for reliable serial communication
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#define TIME_SEND 100 // [ms] Sending time interval
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#define TIME_SEND 1000 // [ms] Sending time interval
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#define SPEED_MAX_TEST 300 // [-] Maximum speed for testing
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//#define DEBUG_RX // [-] Debug received data. Prints all bytes to serial (comment-out to disable)
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@ -80,11 +80,10 @@ SerialFeedback NewFeedback;
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#define SCREEN_HEIGHT 64 // OLED display height, in pixels
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// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
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#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire);
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// ########################## SETUP ##########################
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void setup()
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void setup()
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{
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display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // initialize with the I2C addr 0x3C (for the 128x64)
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@ -98,11 +97,11 @@ void setup()
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display.println("v1.0");
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display.display();
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Serial1.begin(HOVER_SERIAL_BAUD); // RX, TX from arduino to TX RX on hoverboard board. ! be carreful 3v3
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pinMode(LED_BUILTIN, OUTPUT);
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Serial1.begin(HOVER_SERIAL_BAUD); // RX, TX from arduino to TX RX on hoverboard board. ! be carreful 3v3
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pinMode(LED_BUILTIN, OUTPUT);
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Serial.begin(SERIAL_BAUD);
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if (Serial) {
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if (Serial) {
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Serial.println("Hoverboard Serial v1.0");
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}
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}
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@ -110,14 +109,14 @@ void setup()
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// ########################## SEND ##########################
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void Send(int16_t uSteer, int16_t uSpeed)
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{
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// Create command
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Command.start = (uint16_t)START_FRAME;
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Command.steer = (int16_t)uSteer;
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Command.speed = (int16_t)uSpeed;
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Command.checksum = (uint16_t)(Command.start ^ Command.steer ^ Command.speed);
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// Write to Serial
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Serial1.write((uint8_t *) &Command, sizeof(Command));
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// Create command
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Command.start = (uint16_t)START_FRAME;
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Command.steer = (int16_t)uSteer;
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Command.speed = (int16_t)uSpeed;
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Command.checksum = (uint16_t)(Command.start ^ Command.steer ^ Command.speed);
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// Write to Serial
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Serial1.write((uint8_t *) &Command, sizeof(Command));
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}
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// ########################## RECEIVE ##########################
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@ -126,7 +125,7 @@ void Receive()
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// Check for new data availability in the Serial buffer
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if (Serial1.available()) {
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incomingByte = Serial1.read(); // Read the incoming byte
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bufStartFrame = ((uint16_t)(incomingBytePrev) << 8) + incomingByte; // Construct the start frame
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bufStartFrame = ((uint16_t)(incomingBytePrev) << 8) + incomingByte; // Construct the start frame
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}
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else {
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return;
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@ -136,30 +135,30 @@ void Receive()
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#ifdef DEBUG_RX
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Serial.print(incomingByte);
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return;
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#endif
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#endif
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// Copy received data
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if (bufStartFrame == START_FRAME) { // Initialize if new data is detected
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p = (byte *)&NewFeedback;
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*p++ = incomingBytePrev;
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*p++ = incomingByte;
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idx = 2;
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*p++ = incomingByte;
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idx = 2;
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} else if (idx >= 2 && idx < sizeof(SerialFeedback)) { // Save the new received data
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*p++ = incomingByte;
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*p++ = incomingByte;
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idx++;
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}
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}
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// Check if we reached the end of the package
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if (idx == sizeof(SerialFeedback)) {
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if (idx == sizeof(SerialFeedback)) {
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uint16_t checksum;
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checksum = (uint16_t)(NewFeedback.start ^ NewFeedback.cmd1 ^ NewFeedback.cmd2 ^ NewFeedback.speedR ^ NewFeedback.speedL
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^ NewFeedback.speedR_meas ^ NewFeedback.speedL_meas ^ NewFeedback.batVoltage ^ NewFeedback.boardTemp);
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// Check validity of the new data
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if (NewFeedback.start == START_FRAME && checksum == NewFeedback.checksum) {
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// Copy the new data
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memcpy(&Feedback, &NewFeedback, sizeof(SerialFeedback));
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// Print data to CDC Serial if available
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if (Serial) {
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Serial.print("1: "); Serial.print(Feedback.cmd1);
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@ -174,10 +173,10 @@ void Receive()
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} else {
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if (Serial) Serial.println("Non-valid data skipped");
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}
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idx = 0; // Reset the index (it prevents to enter in this if condition in the next cycle)
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}
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// Update previous states
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incomingBytePrev = incomingByte;
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}
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