Jumper wires soldered to the circuit board simply allow the Arduino to emulate button pushes. To ensure that the head unit buttons still work in conjunction with the steering wheel buttons ...

[Alex] needed a project for his microcomputer circuits class ... [Alex] planned to use an Arduino to control this display, but it doesn’t have enough outputs on its own to control all of ...

If you searching for an LED matrix ... circuit board has everything you need to run a display – just plug it in! Using and customizing the display is easy, with a specially written Arduino ...