mcharrison500
Published

The Motion Mobile: Gesture-Controlled Car

Have you ever wanted to be able to control a car with your hand? Introducing the Motion Mobile!

EasyFull instructions provided185
The Motion Mobile: Gesture-Controlled Car

Things used in this project

Hardware components

Arduino UNO & Genuino UNO
Arduino UNO & Genuino UNO
×1
Arduino Nano R3
Arduino Nano R3
×1
Adafruit 433mhz rf transmitter and receiver
×2
Amazon Web Services Adafuit Motor shield
×1
GY-521 MPU-6050 3 Axis Gyroscope + Accelerometer Module For Arduino
×1
Ultrasonic Sensor - HC-SR04 (Generic)
Ultrasonic Sensor - HC-SR04 (Generic)
×1

Hand tools and fabrication machines

Adafruit car chassis

Story

Read more

Schematics

Transmitter glove

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receiver (RC Car)

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RC car Flowchart

RC car Flowchart
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Code

receiver (RC Car)

Arduino
this code is for rc car to receive signals
#include <VirtualWire.h> //VirtualWire library declaration
#include <AFMotor.h>
byte msg[VW_MAX_MESSAGE_LEN];//Data flow is received
byte msgLen = VW_MAX_MESSAGE_LEN;
char forward[1] = {1};

AF_DCMotor motor1(1, MOTOR12_1KHZ);
AF_DCMotor motor2(2, MOTOR12_1KHZ);
AF_DCMotor motor3(3, MOTOR34_1KHZ);
AF_DCMotor motor4(4, MOTOR34_1KHZ);

void setup()
{
  Serial.begin(9600);
  Serial.println("READY..........");
  vw_setup(2048); // set the baud rate
  vw_set_rx_pin(2);// Set up digital pins to receive signals
  vw_rx_start();// started receiving the signal
}


void loop()
{
  if (vw_get_message(msg, &msgLen)) // if the signal is transmitted
  {
    Serial.print("got transmition");
    motor1.setSpeed(255);
    motor2.setSpeed(255);
    motor3.setSpeed(255);
    motor4.setSpeed(255);
    switch (msg[0])
    {
      case '0':
        {
          motor1.run(RELEASE);
          motor2.run(RELEASE);
          motor3.run(RELEASE);
          motor4.run(RELEASE);
          break;
        }

      case '1':
        {
          motor1.run(FORWARD);
          motor2.run(FORWARD);
          motor3.run(FORWARD);
          motor4.run(FORWARD);
          break;
        }

      case '2':
        {
          motor1.setSpeed(150);
          motor2.setSpeed(150);
          motor3.setSpeed(150);
          motor4.setSpeed(150);
          motor1.run(FORWARD);
          motor2.run(FORWARD);
          motor3.run(BACKWARD);
          motor4.run(BACKWARD);
          break;
        }

      case '3':
        {
          motor1.setSpeed(150);
          motor2.setSpeed(150);
          motor3.setSpeed(150);
          motor4.setSpeed(150);
          motor1.run(BACKWARD);
          motor2.run(BACKWARD);
          motor3.run(FORWARD);
          motor4.run(FORWARD);
          break;
        }

      case '4':
        {
          motor1.run(BACKWARD);
          motor2.run(BACKWARD);
          motor3.run(BACKWARD);
          motor4.run(BACKWARD);
          break;
        }

      case '5':
        {
          motor3.setSpeed(70);
          motor4.setSpeed(70);
          motor1.run(FORWARD);
          motor2.run(FORWARD);
          motor3.run(FORWARD);
          motor4.run(FORWARD);
          break;
        }

      case '6':
        {
          motor1.setSpeed(70);
          motor2.setSpeed(70);
          motor1.run(FORWARD);
          motor2.run(FORWARD);
          motor3.run(FORWARD);
          motor4.run(FORWARD);
          break;
        }
    }



}

RCtransmitter (glove)

Arduino
sends signals to rc
#include <VirtualWire.h> // VirtualWire library declaration
#include "I2Cdev.h"
#include "MPU6050.h"

#if I2CDEV_IMPLEMENTATION == I2CDEV_ARDUINO_WIRE
#include "Wire.h"
#endif
MPU6050 accelgyro;
int16_t ax, ay, az;//used for making programs cross platform
int16_t gx, gy, gz;//used for making programs cross platform
//#define OUTPUT_READABLE_ACCELGYRO
#define OUTPUT_BINARY_ACCELGYRO
#define LED_PIN 13
bool blinkState = false;
char text[5] = "";// array array declaration
byte i = 0;

void setup()
{
#if I2CDEV_IMPLEMENTATION == I2CDEV_ARDUINO_WIRE//communicacate between devices
  Wire.begin();
#elif I2CDEV_IMPLEMENTATION == I2CDEV_BUILTIN_FASTWIRE
  Fastwire::setup(400, true);
#endif
  Serial.begin(9600);// Serial communication with baudrate 9600
  accelgyro.initialize();
  Serial.println(accelgyro.testConnection() ? "MPU6050 connection successful" : "MPU6050 connection failed");
  Serial.println("Ready.........");
  vw_set_ptt_inverted(true);// Requirements for RF link modules
  vw_setup(2048);// set the baud rate
  vw_set_tx_pin(8);// Set up digital pins to signal
  pinMode(LED_PIN, OUTPUT);

}

void loop()
{
  accelgyro.getMotion6(&ax, &ay, &az, &gx, &gy, &gz);
#ifdef OUTPUT_READABLE_ACCELGYRO
  // display tab-separated accel/gyro x/y/z values
  Serial.print("a/g:\t");
  Serial.print(ax); Serial.print("\t");
  Serial.print(ay); Serial.print("\t");
  Serial.print(az); Serial.print("\t");
  Serial.print(gx); Serial.print("\t");
  Serial.print(gy); Serial.print("\t");   //-32000
  Serial.println(gz);
  //delay(250);
#endif

#ifdef OUTPUT_BINARY_ACCELGYRO
  /*  Serial.write((uint8_t)(ax >> 8)); Serial.write((uint8_t)(ax & 0xFF));
    Serial.write((uint8_t)(ay >> 8)); Serial.write((uint8_t)(ay & 0xFF));
    Serial.write((uint8_t)(az >> 8)); Serial.write((uint8_t)(az & 0xFF));
    Serial.write((uint8_t)(gx >> 8)); Serial.write((uint8_t)(gx & 0xFF));
    Serial.write((uint8_t)(gy >> 8)); Serial.write((uint8_t)(gy & 0xFF));
    Serial.write((uint8_t)(gz >> 8)); Serial.write((uint8_t)(gz & 0xFF)); */
#endif


  if ((ay < 9000) and (ay > -9000) and (ax < 12000) and (ax > -3000))
  {
    Serial.println("Ready.........");
    text[i] = '0';
    vw_send((byte *)text, sizeof(text));// send the signal away
    vw_wait_tx();

  }

  if (ax < -3800)
  {
    if (ay < -13000)
    {
      Serial.println("to the right");
      text[i] = '5'; // to the right
      vw_send((byte *)text, sizeof(text));// send the signal away
      vw_wait_tx();
    }
    else if (ay > 8000)
    {
      Serial.println("to the left");
      text[i] = '6'; // to the left
      vw_send((byte *)text, sizeof(text));// send the signal away
      vw_wait_tx();
    }
    else
    {
      Serial.println("to the left"); 
      text[i] = '1'; //tới
      vw_send((byte *)text, sizeof(text));// send the signal away
      vw_wait_tx();
    }
  }

  if (ay < -13000)
  {
    if (ax < -3800)
    {
      Serial.println("to the right");
      text[i] = '5'; // to the right
      vw_send((byte *)text, sizeof(text));// send the signal away
      vw_wait_tx();
    }
    else
    {
      Serial.println("to the right");
      text[i] = '2'; // right
      vw_send((byte *)text, sizeof(text));// send the signal away
      vw_wait_tx();
    }
  }

  if (ay > 7000)
  {
    if (ax < -3800)
    {
      Serial.println("to the left");
      text[i] = '6'; // to the left
      vw_send((byte *)text, sizeof(text));// send the signal away
      vw_wait_tx();
    }
    else
    {
      Serial.println("to the left");
      text[i] = '3'; //  to the left
      vw_send((byte *)text, sizeof(text));// send the signal away
      vw_wait_tx();
    }
  }

  if (ax > 14000)
  {
    text[i] = '4'; //backward
    vw_send((byte *)text, sizeof(text));// send the signal away
    vw_wait_tx();
  }



  blinkState = !blinkState;
  digitalWrite(LED_PIN, blinkState);

}

Credits

mcharrison500

mcharrison500

1 project • 0 followers
Ambitious 4th year student of BEng (Hons) Software & Electronic Engineering at Galway-Mayo Institute of Technology (GMIT).
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