Arduino to Pololu High-Power Motor Driver 18v15

Support Motor controllers/drivers and motors
1

Good day

Can someone please post a picture on how to connect the Pololu High-Power Motor Driver 18v15 to an Arduino Duemilanove. and if possible can someone please post me a scetch that I can use for the following setup, see attached picture, and if there are any proramming experts out there that can write a “simple” c# app similar to the one in the attached picture.
Thank you and regards,
Riaan Deyzel

ARDUINO FINAL PLANS.PNG1213×859 303 KB

2

Hello.

Have you read the Using the Motor Driver section of the product webpage?

The minimum connections you need to make are V+,GND, OUTA, and OUTB on the motor power side (the side with bigger through-holes) and PWM and DIR on the logic side (the side with smaller through-holes).

If you post an image showing how you think it should be connected, I can look at it to help you make sure it is correct. You could use this picture as a starting point:

- Ryan

3

Good day

Please follow this link to check out the connections to my arduino, can you check if it is correct?
http://robotcontrol.yolasite.com/build.php

Thank you & regards
Riaan Deyzel

4

Hi, Riaan.

I looked at your diagram. It looks correct to me.

- Ryan

5

Good day

Thank you for checking. My Motor Driver is waiting for me at the Post Office to collect, and I can not wait to test it.

Thank you & regards,
Riaan Deyzel

6

Good day

Does anyone have any C# source code for me to be able to control a motor or servo?
Here is an example of the pins I have used & an example of the GUI : http://robotcontrol.yolasite.com/robotics-forum.php#bn-forum-1-1-4078249718/6874 .

Thank you & regards,
Riaan Deyzel

7

Here is the current scetch which I modified to change the pan servo to pin 9

Code:

// Importa a biblioteca Servo.h do arduino
#include <Servo.h>

// Cria uma variavel do tipo Servo que será
// o nosso servo.
Servo servo1;

// Array de char que receberá o comando
// via serial
char buffer[4];

// Variavel que identifica quantos
// caracteres foram recebidos, pois só é
// possível receber um caracter por vez
int received;

void setup(){

  // Define o baud rate (taxa de trasmissão) como 9600
  Serial.begin(9600);

  // Atribui o servo ao pino 9 do Arduino
  servo1.attach(9);

  // Atribui o valor 0 para a variavel received
  received = 0;

  // Na posição 0 do array, atribui o valor '\0'
  // que identifica onde começa o array
  buffer[received] = '\0';
}

void loop(){

  // Verifica se existe alguma entrada de dados
  // disponivel na entrada serial
  if(Serial.available()){

    // Salva os caracteres no array a cada iteração
    buffer[received++] = Serial.read();

    if(received >= (sizeof(buffer)-1)){

	// Imprime na saída serial o valor
	// Apenas para mostrar o valor
	Serial.println(buffer);

	// Converte o valor de "char" para "int"
	int numero = atoi(buffer);

	// Envia o comando para o Servo Motor
	servo1.write(numero);

	// Zera novamente a variavel
	received = 0;
    }

    // Limpa o buffer da entrada serial
    Serial.flush();

  }

}

That was the easy part, now I need to add support for an second servo “tilt servo” on pin 10, I can copy the code & buttons from the pan buttons and use them for the tilt buttons, but not sure how to link it to the scetch from the C# app, as the same servo on Pin 9 would probabbly move when I press the Tilt (up/Down Buttons). (See link in above post for source code & original Scetch)
Can anyone please help with this?
Thanks :frowning:

8

Hello.

It looks like you are reading from a serial port with your sketch. You need to make your C# application write commands to the serial port, and then have your sketch execute the commands that it reads.

- Ryan