MeArm Servo Motor Arduino Wiring Schematics and Source Code

MeArm Arduino Servo Motor Wire Schematic

Arduino UNO PWM Pins 11,10,9 and 6

SERVO MOTOR WIRE COLOR CODE

BROWN = GND

ORANGE = +5V

YELLOW = SIGNAL

BREADBOARD

(4) AAA BATTERY PACK

USB PORT

CONNECTED TO PC

ArmUno and MeArm Basic Arduino Servo Wire Connections using a Breadboard and Jumper Wires

The above wiring diagram shows the pin-out on a Arduino UNO micro-controller board needed to let the sample source code control the robotic arm and communicate with a windows PC running MeCon motion control software. using a standard electronic prototyping breadboard and some jumper wires makes this an easy and fast task. the photo below shows this circuit all wired up.

USB PORT

CONNECTED TO PC

Image of the MeArm with the Arduino all Wired up

Arduino IDE Software

We will need to have the Arduino IDE software installed on our PC and have the micro controllers USB port  connected to a USB port on the computer via a cable in order to transfer the the sample code to the Arduino. if you don't already have the Arduino software you can download it. Below we have the Arduino source code. You can copy and paste this into the Arduino IDE and save it with a meaningful name. Hit the upload arrow button to transfer to the micro controller.

Arduino Code for MeCon Servo Motor Robot Motion Control Software

// MeArmMeCon-A04.ino

//Use With MeCon.exe Ver0.4 Windows Software for MeArm Motion Control

 

 

#include <Servo.h>

 

//MeArm HAS 4 SERVOS

Servo xServo;  // create servo object, arm base servo - left right motion

Servo yServo;  // create servo object, left side servo - forward backwards motion

Servo zServo;  // create servo object, right side servo - forward backwards motion

Servo clawServo;  // create servo object, end of arm srevo - open,close the claw hand

 

//servo positions values, expects 1-180 deg.

int xPos;

int yPos;

int zPos;

int clawPos;

 

//*************** INIT AT STARTUP *******************************************************************

 

void setup() {        // the setup function runs once when you press reset or power the board

 

  // assign servo to pin numbers

  xServo.attach(11);  // attaches the servo on pin 11 to the servo object

  yServo.attach(10);  // attaches the servo on pin 10 to the servo object

  zServo.attach(9);  // attaches the servo on pin 9 to the servo object

  clawServo.attach(6);  // attaches the servo on pin 6 to the servo object

 

  // initialize serial port

  Serial.begin(9600);

 

  // Debug only send serial message to host com port terminal window in Arduino IDE

  //Serial.print("*** MeCom Test V04 ***.");   // send program name, uncomment for debug connection test

 

 

 

}

 

// ******************************************************************************************************

// ********************************** MAIN PROGRAM LOOP START *******************************************

// ******************************************************************************************************

 

void loop() {

 

 

  //serial in packet patern = xVal,yVal,zVal,clawVal + end of packet char 'x'

  while (Serial.available() > 0) {

    xPos = Serial.parseInt();

    yPos = Serial.parseInt();

    zPos = Serial.parseInt();

    clawPos = Serial.parseInt();

 

    if (Serial.read() == 'x') { // Detect end of packet char 'x', go ahead and update servo positions

 

 

      // UPDATE SERVO POSITIONS

      xServo.write(xPos);

      yServo.write(yPos);

      zServo.write(zPos);

      clawServo.write(clawPos);

 

 

    }

 

  }

 

}

 

 

SHOW ME YOUR MOVES! - MeCon ArmUno and MeArm Motion Control Software

Download MeCon Robotic Arm Servo Control Software!

MeCon Robotic Servo Control Software

Your desktop robotic arm should now be all setup and ready to accept movement commands from the MeCon motion control program. Please see our page dedicated to MeCon operation.

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