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@ -33,152 +33,172 @@
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// ########################## DEFINES ##########################
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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 START_FRAME 0xAAAA // [-] Start frme definition for reliable serial communication
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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 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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#include <Wire.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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#include <NintendoExtensionCtrl.h>
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// #include <SoftwareSerial.h>
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// SoftwareSerial HoverSerial(2,3); // RX, TX
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// SoftwareSerial HoverSerial(2,3); // RX, TX
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// Global variables
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uint8_t idx = 0; // Index for new data pointer
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uint16_t bufStartFrame; // Buffer Start Frame
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byte *p; // Pointer declaration for the new received data
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uint8_t idx = 0; // Index for new data pointer
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uint16_t bufStartFrame; // Buffer Start Frame
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byte *p; // Pointer declaration for the new received data
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byte incomingByte;
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byte incomingBytePrev;
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typedef struct{
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uint16_t start;
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int16_t steer;
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int16_t speed;
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uint16_t checksum;
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typedef struct {
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uint16_t start;
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int16_t steer;
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int16_t speed;
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uint16_t checksum;
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} SerialCommand;
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SerialCommand Command;
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typedef struct{
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uint16_t start;
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int16_t cmd1;
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int16_t cmd2;
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int16_t speedR;
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int16_t speedL;
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int16_t speedR_meas;
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int16_t speedL_meas;
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int16_t batVoltage;
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int16_t boardTemp;
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int16_t checksum;
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typedef struct {
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uint16_t start;
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int16_t cmd1;
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int16_t cmd2;
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int16_t speedR;
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int16_t speedL;
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int16_t speedR_meas;
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int16_t speedL_meas;
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int16_t batVoltage;
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int16_t boardTemp;
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int16_t checksum;
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} SerialFeedback;
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SerialFeedback Feedback;
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SerialFeedback NewFeedback;
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
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#define SCREEN_HEIGHT 64 // OLED display height, in pixels
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
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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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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire);
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// Connect to a Nunchuk
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Nunchuk nchuk;
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// ########################## 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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// Clear the buffer
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display.clearDisplay();
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display.display();
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display.setCursor(0, 0);
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display.setTextSize(1); // Draw 1X-scale text
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display.setTextColor(SSD1306_WHITE);
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display.println("Hoverboard Serial");
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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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Serial.begin(SERIAL_BAUD);
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if (Serial) {
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Serial.println("Hoverboard Serial v1.0");
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}
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nchuk.begin();
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display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // initialize with the I2C addr 0x3C (for the 128x64)
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// Clear the buffer
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display.clearDisplay();
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display.display();
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display.setCursor(0, 0);
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display.setTextSize(1); // Draw 1X-scale text
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display.setTextColor(SSD1306_WHITE);
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display.println("Hoverboard Serial");
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display.println("v1.0");
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display.print("Nunchuk ");
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nchuk.connect()? display.print("") : display.print("not ");
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display.println("connected");
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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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Serial.begin(SERIAL_BAUD);
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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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// ########################## 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 =
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(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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void Receive()
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{
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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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}
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else {
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return;
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}
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// If DEBUG_RX is defined print all incoming bytes
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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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// 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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} else if (idx >= 2 && idx < sizeof(SerialFeedback)) { // Save the new received data
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*p++ = incomingByte;
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idx++;
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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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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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Serial.print(" 2: "); Serial.print(Feedback.cmd2);
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Serial.print(" 3: "); Serial.print(Feedback.speedR);
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Serial.print(" 4: "); Serial.print(Feedback.speedL);
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Serial.print(" 5: "); Serial.print(Feedback.speedR_meas);
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Serial.print(" 6: "); Serial.print(Feedback.speedL_meas);
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Serial.print(" 7: "); Serial.print(Feedback.batVoltage);
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Serial.print(" 8: "); Serial.println(Feedback.boardTemp);
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}
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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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// 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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} else {
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return;
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}
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// If DEBUG_RX is defined print all incoming bytes
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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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// 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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} else if (idx >= 2 && idx < sizeof(SerialFeedback)) { // Save the new received data
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*p++ = incomingByte;
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idx++;
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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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uint16_t checksum;
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checksum =
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(uint16_t) (NewFeedback.start ^ NewFeedback.
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cmd1 ^ NewFeedback.cmd2 ^ NewFeedback.
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speedR ^ NewFeedback.speedL ^ NewFeedback.
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speedR_meas ^ NewFeedback.speedL_meas ^
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NewFeedback.batVoltage ^ NewFeedback.boardTemp);
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// Check validity of the new data
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if (NewFeedback.start == START_FRAME
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&& 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: ");
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Serial.print(Feedback.cmd1);
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Serial.print(" 2: ");
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Serial.print(Feedback.cmd2);
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Serial.print(" 3: ");
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Serial.print(Feedback.speedR);
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Serial.print(" 4: ");
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Serial.print(Feedback.speedL);
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Serial.print(" 5: ");
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Serial.print(Feedback.speedR_meas);
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Serial.print(" 6: ");
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Serial.print(Feedback.speedL_meas);
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Serial.print(" 7: ");
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Serial.print(Feedback.batVoltage);
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Serial.print(" 8: ");
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Serial.println(Feedback.boardTemp);
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}
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} else {
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if (Serial)
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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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// ########################## LOOP ##########################
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@ -189,34 +209,55 @@ int iTest = 0;
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void loop(void)
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{
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unsigned long timeNow = millis();
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// Check for new received data
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Receive();
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// Send commands
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if (iTimeSend > timeNow)
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return;
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iTimeSend = timeNow + TIME_SEND;
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Send(0, abs(iTest));
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display.setCursor(0, 30);
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display.setTextSize(1); // Draw 1X-scale text
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display.setTextColor(SSD1306_WHITE);
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display.print("Speed : ");
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display.setCursor(45, 30);
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display.print(" ");
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display.display();
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display.setCursor(45, 30);
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unsigned long timeNow = millis();
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// Check for new received data
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Receive();
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// Get new data from the controller
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if (!nchuk.update()) {
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Serial.println("Controller disconnected!");
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nchuk.reconnect();
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} else {
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// Read a button (on/off, C and Z)
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Serial.print("Z: ");
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nchuk.buttonZ()? Serial.print("On ") : Serial.print("Off ");
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Serial.print("C: ");
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nchuk.buttonC()? Serial.print("On ") : Serial.print("Off ");
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// Read joystick axis (0-255, X and Y)
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Serial.print("The joystick's Y axis is at ");
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Serial.print(nchuk.joyY());
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Serial.print(" and X axis is at ");
|
|
|
|
|
Serial.print(nchuk.joyX());
|
|
|
|
|
|
|
|
|
|
// Read an accelerometer and print values (0-1023, X, Y, and Z)
|
|
|
|
|
Serial.print(" - The accelerometer's X-axis is at ");
|
|
|
|
|
Serial.println(nchuk.accelX());
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Send commands
|
|
|
|
|
if (iTimeSend > timeNow)
|
|
|
|
|
return;
|
|
|
|
|
iTimeSend = timeNow + TIME_SEND;
|
|
|
|
|
Send(0, abs(iTest));
|
|
|
|
|
|
|
|
|
|
display.setCursor(0, 30);
|
|
|
|
|
display.setTextSize(1); // Draw 1X-scale text
|
|
|
|
|
display.setTextColor(SSD1306_WHITE);
|
|
|
|
|
display.print("Speed : ");
|
|
|
|
|
display.setCursor(45, 30);
|
|
|
|
|
display.print(" ");
|
|
|
|
|
display.display();
|
|
|
|
|
display.setCursor(45, 30);
|
|
|
|
|
display.print(iTest);
|
|
|
|
|
display.display();
|
|
|
|
|
// Calculate test command signal
|
|
|
|
|
iTest += 10;
|
|
|
|
|
if (iTest > iTestMax)
|
|
|
|
|
iTest = -iTestMax;
|
|
|
|
|
|
|
|
|
|
// Blink the LED
|
|
|
|
|
digitalWrite(LED_BUILTIN, (timeNow % 2000) < 1000);
|
|
|
|
|
display.display();
|
|
|
|
|
// Calculate test command signal
|
|
|
|
|
iTest += 10;
|
|
|
|
|
if (iTest > iTestMax)
|
|
|
|
|
iTest = -iTestMax;
|
|
|
|
|
|
|
|
|
|
// Blink the LED
|
|
|
|
|
digitalWrite(LED_BUILTIN, (timeNow % 2000) < 1000);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// ########################## END ##########################
|
|
|
|
|
|