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Forum Index : Microcontroller and PC projects : ScrollHatMini PicoMite
| Author | Message | ||||
| pwillard Guru  Joined: 07/06/2022 Location: United StatesPosts: 307 |
This morning, I was looking at a spare Pico with MMBASIC installed, along with a Pimoroni Scroll Hat Mini (a 17x7 LED Matrix Display). I started wondering how it worked. Could I make it scroll text using MMBASIC? It turns out that you can, if you twist your brain a little bit. Now, I have a handy board from 52PI that I got from Micro Center... https://52pi.com/products/52pi-breakout-hat-board-for-raspberry-pi-pico It creates a Raspberry Pi Compatible interface for a Pi Pico that allows you to attach Pi HATS, so wiring was no issue once I figured out where SDA and SDC are mapped. (pin 21 and 22) From there, it was "read the datasheet" and play. The result is posted to a GITHUB Gist for a crude example of "getting it to work". By no means "pretty". The onboard chip is an IS31FL3731, wired up as a 7x17 LED matrix in a circular pattern from the middle (yuck). A booger to initially figure out. Datasheet https://www.lumissil.com/assets/pdf/core/IS31FL3731_DS.pdf Details Here: https://gist.github.com/pwillard/88f1282a065b2bed6b5311980cd9f8fe Edited 2025-04-29 10:00 by pwillard |
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