Servo Motor Arduino Wiring Schematics and Source Code

For the more current Arduino and Robotio Nano diagrams and information check out our Robot Servo Controllers page.

ArmUno, Armio, 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.

Image of a MeArm with an Arduino UNO with Servo Motors all Wired up

Basic Arduino Code for MeCon Servo Motor Robot Motion Control Software

// Minimal Code Example for Robotic Servo Control with Robotio & Arduino Uno & Nano Boards

//Use With MeCon.exe  Windows Software for Robotic Arm Motion Control, ArmUno, Armio, MeArm, Etc..

 

 

#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 servo - 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 signal pin numbers, Use any pins# 2 threw 13

  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, Make sure is the same in your control Software/Hardware

  Serial.begin(9600);

 

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

  Serial.print("*** MeCom Test ***.");   // Boot Message, 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!

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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