ATTiny-B-W-VGA VS pico-playground

I followed Ben's guide to make a little ATTiny 2 colour VGA output of a clock counting down. https://github.com/duncanspumpkin/ATTiny-B-W-VGA

It was quite a challenge building it into such a tiny controller. Was doing it for a University project where we wanted to have the clock started from an external source so needed to keep one I/O free for that input. It ended up with every I/O pin of the 8 pin micro having a use.

The RP2040 (as used by the Raspberry Pi Pico) can generate some impressive video thanks to its PIO. E.g. Luke Wren's work giving DVI output https://github.com/Wren6991/picodvi and the scanvideo library: https://github.com/raspberrypi/pico-playground

I did a write up going over how to generate VGA video from scratch to produce some SNES like graphics:

https://gregchadwick.co.uk/blog/playing-with-the-pico-pt4/

The example sketch you can use without any modifications nessasory

https://github.com/raspberrypi/pico-playground https://github.com/raspberrypi/pico-examples

I used the USB sound card example: https://github.com/raspberrypi/pico-playground/blob/master/apps/usb_sound_card

You'll need to edit this file after you download it first. Add the lines PICO_AUDIO_I2S_DATA_PIN=28 and PICO_AUDIO_I2S_CLOCK_PIN_BASE=26 in the compile definitions. After that, you can compile it as normal.