I've just stumbled across the "unofficial retrofest ad" and I'm still chuckling at it now...
Hoping to be visiting again on the Sunday this year fingers crossed!

Simple DIY electronic music projects - #Arduino, #RaspberryPi #MIDI, #synthdiy, where music and #STEM overlap. Home of the #LoFiOrchestra and follower of #MakersHour. I also try to list every time I get a #MakerFail too, as that is how I learn!
Blog: @diyelectromusic.com
Videos: @diyelectromusic
Non music-related making: @emalliab
| Website | https://diyelectromusic.wordpress.com/about/ |
| Pronouns | He/Him |
| Country | UK |
| GitHub | https://github.com/diyelectromusic/ |
I've just stumbled across the "unofficial retrofest ad" and I'm still chuckling at it now...
Hoping to be visiting again on the Sunday this year fingers crossed!

Half Price Offer - SAM Revival issue 11
- The issue that focuses on sound on the #SAMCoupe computer. Full colour, professionally printed magazine (Originally released 2004, updated 2024). Includes 19 track audio CD.
https://www.ebay.co.uk/itm/117127555134
#demoscene #demoparty #synth #chiptune #indiedev #z80 #retrocomputing
But I have now published my walk through of part of the AVR emulation of AY-3-8910/8912 devices.
Fascinating stuff.
https://diyelectromusic.com/2026/04/06/ay-3-8912-8910-hardware-emulation/
Note to self:
"I do not need to build an AY-3-8910 out of discrete logic chips."
"I do not need to build an AY-3-8910 out of discrete logic chips."
"I do not need to build..."
https://github.com/mengstr/Discrete-AY-3-8910
But how cool would that be!
Here it is, as mentioned earlier today, I've pulled the trigger and uploaded "Issue 1" of my new Disk Mag "Adventures In Retro"
Before I drop the URL, I'd like to use this opportunity to thank @MsMadLemon for the support and assistance in getting this project off the ground (as well as the other contributors I have)
You can download this from here:
https://www.adv-in-retro.uk/
I've spent a good chunk of the day working through how the AVR emulation for the AY-3-8912 works - as you do.
I did wonder if it would run on a standard Arduino Uno/Nano, but no. The emulation assumes a 27MHz clock for the ATMega compared to the Arduino's usual 16MHz.
There are those Logic Green ATMega328P clones in a Nano clone board that go up to 32 MHz, so that might be something to look at, at some point though... I think they're still 5V logic.
https://github.com/Yevgeniy-Olexandrenko/avr-ay-board/blob/main/firmware/v1.0/sources/emulator.asm
The #Z80 #cpu is no longer produced since 2024, what to do if you need to replace a broken one? The picoZ80 is a drop-in replacement based on the RP2350 #microcontroller
Soon to be released.