Maker Bobricius is up for another challenge raspberry pi-Powered Doomsday Creation— Armachat Touch PicomputerThis custom PCB features our favorite microcontroller, the Raspberry Pi Pico. It features a keyboard for input and allows users to communicate directly using his LoRa wireless communication.
This is one of several “Doomsday Computers” made by Bobricius using several versions of the Pi. Previous editions include support for Raspberry Pi Zero. It’s powered by Pico and has a lot of exciting features like an LED backlit keyboard for text input and glowing green LEDs.
According to Bobricius, his PCB uses no additional chips for processing other than the Raspberry Pi Pico. With the help of software he got from Adafruit, he can do everything using only Pico. His custom configuration allows him to use Pico’s CircuitPython library to process input from his 30 individual keys via 12 of his GPIOs. Toshio.
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The project consists of a custom PCB designed by Bobricius and a Pico module. Visual output also requires a 1.69 inch IPS LCD screen with a resolution of 280 x 240px. The keyboard is a QWERTY layout and uses 30 individual touch buttons. The overall unit size is 150mm x 90mm x 1.6mm.
As mentioned earlier, the software side is driven by CircuitPython. Designed to act as a communication system using the LoRa wireless protocol. It interprets keypresses by triggering CPIO pins to change state before registering the input on the LCD screen. This is how you can get 30 input options with a limited number of GPIOs on Pico. You can dig deeper into the code at the following URLs: GitHub Let’s take a closer look at how it all fits together.
If you would like to recreate this Raspberry Pi project, please visit the following product pages: Tindy Order your board to get started. Follow Bobricius for more cool projects and future updates on this project.