Computer application to output voltages on different pins

Projects General Guidance
1

For my project, I would like to write a program to control an arduino to output voltages on different pins. The device would be used for tuning an ecu where values between 0 and 5 vdc will change values in the fuel map on the ecu. the connection is made with 6 pins, a ground and a 5v power from the ecu, and 4 pins to write voltages on. I would like to write a program to do this, so it can be achieved in real time.

The actual coding part should be easy as i have experience with that, but this would be my first arduino project and would like guidance or overview on what would have to be done.

2

You can do it with DACs (Digital to Analog Converters) or by low pass filtering PWM outputs. The analogWrite function sets the PWM duty cycle.

3

Im just not sure how I would go about making a GUI to run the whole mess

4

So you are wanting an application on the PC that sends commands to the Arduino that adjusts the voltage outputs?

5

Hi,
Welcome to the forum.

If you need a GUI, consider using a program for the PC called "Processing", it has several examples of how to communicate with Arduino controller and how to draw your own GUI.

Tom... :slight_smile: