Adxl 345 digital accelerator

Projects General Guidance
1

Hey guys
I want to make a gesture robotic car using
Accelerator adxl 345 (hand)
2 Bluetooth one slave (car) and the other is master (hand)
4 DC motors with motor driver
2 Arduino uno

I can't find a code that is working
Can you help me out

Code of the hand

#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_ADXL345_U.h>
#include <SoftwareSerial.h>

#define ADXL345_ADDR (0x53)

SoftwareSerial bluetooth(2, 3); // RX, TX

Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

void setup() {
  Serial.begin(9600);
  bluetooth.begin(9600);
  if(!accel.begin()) {
    Serial.println("Ooops, no ADXL345 detected ... Check your wiring!");
    while(1);
  }
}

void loop() {
  sensors_event_t event;
  accel.getEvent(&event);

  float x = event.acceleration.x;
  float y = event.acceleration.y;
  float z = event.acceleration.z;

  Serial.print("X: "); Serial.print(x); Serial.print("  ");
  Serial.print("Y: "); Serial.print(y); Serial.print("  ");
  Serial.print("Z: "); Serial.println(z);

  bluetooth.print(x);
  bluetooth.print(",");
  bluetooth.print(y);
  bluetooth.print(",");
  bluetooth.println(z);

  delay(500);
}
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Code of the car
#include <SoftwareSerial.h>
#include <AFMotor.h>

SoftwareSerial bluetooth(2, 3); // RX, TX

#define ENA 11
#define IN1 10
#define IN2 9
#define ENB 6
#define IN3 7
#define IN4 8

AF_DCMotor motor1(1);
AF_DCMotor motor2(2);
AF_DCMotor motor3(3);
AF_DCMotor motor4(4);

void setup() {
  Serial.begin(9600);
  bluetooth.begin(9600);
  pinMode(ENA, OUTPUT);
  pinMode(ENB, OUTPUT);
  pinMode(IN1, OUTPUT);
  pinMode(IN2, OUTPUT);
  pinMode(IN3, OUTPUT);
  pinMode(IN4, OUTPUT);
}

void loop() {
  if(bluetooth.available() > 0){
    String data = bluetooth.readStringUntil('\n');
    int commaIndex1 = data.indexOf(',');
    int commaIndex2 = data.indexOf(',', commaIndex1 + 1);
    if(commaIndex1 != -1 && commaIndex2 != -1){
      float x = data.substring(0, commaIndex1).toFloat();
      float y = data.substring(commaIndex1 + 1, commaIndex2).toFloat();
      float z = data.substring(commaIndex2 + 1).toFloat();
      
      // Do something with the received data (e.g., control motors)
      // For demonstration purposes, just printing received values
      Serial.print("X: "); Serial.print(x); Serial.print("  ");
      Serial.print("Y: "); Serial.print(y); Serial.print("  ");
      Serial.print("Z: "); Serial.println(z);
    }
  }
}
2

So you don't have a problem with the IDE :wink: And hence your topic has been moved toa more suitable location on the forum.

3

Try this... to measure what you should do next:

char message[] = {"Hello, World!"};
void setup() {
  Serial.begin(300);
  Serial.println(message);
}
void loop(){}
4

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