Atari Synth Cart Controller

This project uses my Atari 2600 Controller Shield PCB in reverse, to allow the Arduino to act as an Atari keypad controller and thus allow it to control the Atari Synth Cart. https://makertube.net/w/ryCciwFyQQpcs1Q4Wwy52x Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive … Continue reading Atari Synth Cart Controller →

MiniDexed Raspberry Pi IO Board V2 Build Guide

Here are the build notes for my MiniDexed Raspberry Pi IO Board V2 Design. The previous version can be found here: Version 1: MiniDexed Raspberry Pi IO Board. SSD1306 Version: MiniDexed Raspberry Pi IO Board – Part 2 HD44780 Version: MiniDexed Raspberry Pi IO Board – Part 3 Warning! I strongly recommend using old or second hand equipment for … Continue reading MiniDexed Raspberry Pi IO Board V2 Build Guide →

MiniDexed Raspberry Pi IO Board V2 Design

My two MiniDexed PCBs were some of the earliest ones I made and so I've wondered about revisiting them for a while now. This is a respin of the SSD1306 version of the IO board that is, hopefully, slightly nicer to build a case around! Here is the link to the original PCB: MiniDexed Raspberry … Continue reading MiniDexed Raspberry Pi IO Board V2 Design →

Arduino and SP0256A-AL2 – Part 6

Finally I'm doing something arguably slightly musical with my SP0256A-AL2! Playing it over MIDI. Part 1 - Basic introduction and getting started Part 2 - Arduino programmable clock Part 3 - Using a Raspberry Pi Pico as a programmable clock Part 4 - Using a HC4046 PLL as the clock Part 5 - Using an I2C SI5351 programmable clock … Continue reading Arduino and SP0256A-AL2 – Part 6 →

Arduino and AY-3-8910 – Part 5

My next bit of messing around with Arduno and AY-3-8910 takes my AY-3-8910 Experimenter PCB Design and adds some simple MIDI reception to create a 12-channel AY-3-8910 tone module. Part 1 - Getting started and looking at playing YM files. Part 2 - Adding basic MIDI control. Part 3 - Basic experiments with direct digital synthesis. Part 4 - … Continue reading Arduino and AY-3-8910 – Part 5 →

Waveshare Zero Multi Display PCB – Expander Board

Here are the additional build notes to use my Waveshare Zero Multi Display PCB in "expander" mode to support up to eight displays. Waveshare Zero Multi Display PCB Design Waveshare Zero Multi Display PCB Build Guide Arduino with Multiple Displays – Part 3 https://makertube.net/w/jwddZfiSGyRKKhAuU4Rhas Warning! I strongly recommend using old or second hand equipment for your experiments. I … Continue reading Waveshare Zero Multi Display PCB – Expander Board →

Waveshare Zero Multi Display PCB Build Guide

Here are the build notes for my Waveshare Zero Multi Display PCB. Also see the Waveshare Zero Multi Display PCB – Expander Board. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! If you are new to electronics and microcontrollers, see the Getting … Continue reading Waveshare Zero Multi Display PCB Build Guide →

Waveshare Zero Multi Display PCB Design

Following on from my Arduino with Multiple Displays – Part 2, using a Waveshare Zero type module, I wanted to try even more displays in parallel. I don't know what the performance implications will be, or even if it is possible, but I do know I don't really want to be using jumper wires to try … Continue reading Waveshare Zero Multi Display PCB Design →

Other SAM2695 Synths

After my experiments with the XIAO ESP32-C3 MIDI Synthesizer and in particular, after looking in detail at some different SAM2695 synth modules in XIAO ESP32-C3 MIDI Synthesizer – Part 3, I've also found a few other neat modules that I thought worth a mention. Warning! I strongly recommend using old or second hand equipment for your experiments. … Continue reading Other SAM2695 Synths →

Arduino and AY-3-8910 – Part 3

I suggested in Part 2 that it might be possible to do some simple modulation of the amplitude of the AY-3-8910 channels rather than drive frequencies directly. This is taking a look at the possibilities of some kind of lo-fi direct digital synthesis using that as a basis. Part 1 - Getting started and looking at … Continue reading Arduino and AY-3-8910 – Part 3 →