![]() Here is how a button gets attached to a pin. If you were to put a voltmeter on the pin after configuring Retrogame to use it, it would show about 3.3v. When the pull-up resistor is enabled by Retrogame, the assigned pin connects to 3.3v through a small resistor. The Raspberry Pi has GPIO pins (the ones colored green in the image to the left), and these pins have many features.Īdafruit’s Retrogame enables one of these features, the pull-up resistors, to detect when a button is pressed and then send a keyboard press to the operating system. ![]() ![]() This guide was created to simplify the installation and configuration process (especially when the Pi isn’t connected to the internet). There is a better way using GPIO controls and Adafruit’s Retrogame.Ī complete guide was posted on and shows the installation process, and they’ve even updated the process to include a more automated installation. We need a way to interface with it though, and it doesn’t make much sense to double or triple that cost with a USB controller. The Raspberry Pi Zero at $5 is a perfect starting point for many projects.
0 Comments
Leave a Reply. |