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 →

Arduino and SP0256A-AL2 – Part 4

Having now tried both an Arduino and Raspberry Pi Pico as programmable clocks for the SP0256A-AL2, this post starts to look at some alternative solutions, starting with a HC4046 phase-locked loop, voltage-controlled oscillator clock. Part 1 - Basic introduction and getting started Part 2 - Arduino programmable clock Part 3 - Using a Raspberry Pi Pico as … Continue reading Arduino and SP0256A-AL2 – Part 4 →

Arduino and SP0256A-AL2 – Part 3

Following on from using an Arduino as a variable clock in Arduino and SP0256A-AL2 – Part 2, I have some ideas for a few options, but this post looks in detail at using a Raspberry Pi Pico as the clock source. Spoilers: it kind of works, but isn't quite the answer I need yet... Part 1 … Continue reading Arduino and SP0256A-AL2 – Part 3 →

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 →

Simple PWM Filter PCB Build Guide

Here are the build notes for my Simple PWM Filter PCB Design. Below you can see it connected to my Pico Touch 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 Simple PWM Filter PCB Build Guide →

Simple PWM Filter PCB Design

Having spent a bit of time attempting (although I'm not sure I'm succeeding yet) to understand how to get a useful filter for my Pico Touch Board Audio, I thought it would be useful to have a simple template PCB that could be used for a range of PWM low-pass filtering options. This is my design. … Continue reading Simple PWM Filter PCB Design →

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 →

Arduino with Multiple Displays – Part 3

Whilst messing around a little more with my Arduino with Multiple Displays – Part 2, I've optimised the code a little and found out a bit more about these displays! In this part, I'm actually using a PCB that can hold four displays, powered by a Waveshare Zero device. More on that here: Waveshare Zero Multi … Continue reading Arduino with Multiple Displays – Part 3 →

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 →