Tag: include

Arduino and SP0256A-AL2 – Part 5

This looks at another of the options from Part 4 - the I2C programmable Si5351 clock source. 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 … Continue reading Arduino and SP0256A-AL2 – Part 5 →

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 →

Arduino and AY-3-8910 – Part 4

After Part 3 I started to go back and add MIDI, and changed the waveform on the touch of a button, and then started to wonder if I could add envelopes and so on. And then it occurred to me, I didn't really need to re-implement my own synthesis library, I could probably write a custom … Continue reading Arduino and AY-3-8910 – Part 4 →

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 →

ESP32 S3 DevKit Experimenter PCB Build Guide

Here are the build notes for my ESP32 S3 DevKit Experimenter PCB Design. 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 Started pages. Bill of Materials ESP32S3 DevKit Experimenter PCB (GitHub … Continue reading ESP32 S3 DevKit Experimenter PCB Build Guide →

Atari 2600 Controller Shield PCB Build Guide

Here are the build notes for my Atari 2600 Controller Shield PCB Design. Recall from my design notes that this version doesn't deal with paddles very well Here is an updated version that supports paddles better, but at the expense of requiring more complex code to read them: Atari 2600 Controller Shield PCB Revisited. Warning! I strongly … Continue reading Atari 2600 Controller Shield PCB Build Guide →