Tactile Button Keyboard PCB – Part 2

Here are the build notes for my Tactile Button Keyboard PCB. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! These are the key tutorials for the main concepts used in this project: Open Music Labs: Input Matrix Scanning Arduino Nano MIDI … Continue reading Tactile Button Keyboard PCB – Part 2 →

Tactile Button Keyboard PCB

I've used tactile buttons as musical keyboards in a number of my projects now and either build them on solderless breadboard, which is quite unreliable, or on stripboard, which is a little messy. This PCB design is for a one-octave tactile button keyboard PCB that has various modes of operation and is extendable to two … Continue reading Tactile Button Keyboard PCB →

Analog IO Board PCB – Part 2

This is the build guide for the Analog IO Board PCB. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! These are the key Arduino tutorials for the main concepts used in this project: Simple Potentiometer Breakout Arduino Multi-pot Mozzi FM Synthesis … Continue reading Analog IO Board PCB – Part 2 →

Analog IO Board PCB

A number of my synth projects require the use of potentiometers. A while back I made a relatively simple stripboard pot breakout, but it isn't particularly reliable. This PCB is a pot breakout that can be used in various ways - either direct, with a 4051 multiplexer, or with an SPI MCP3008 expander. It also … Continue reading Analog IO Board PCB →

Pico, Nano, Micro Keyboard Matrix PCB – Part 2

Here are the build notes for my Pico, Nano, Micro Keyboard Matrix PCB. https://youtu.be/AwFH8FZMkNE Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! These are the key Arduino tutorials for the main concepts used in this project: Keyboard Matrix Decode Toy Keyboard … Continue reading Pico, Nano, Micro Keyboard Matrix PCB – Part 2 →

Pico, Nano, Micro Keyboard Matrix PCB

A number of my projects have involved using a microcontroller (usually an Arduino Nano or a Raspberry Pi Pico) to decode a music keyboard matrix and take some action. This is the basis of all of my "toy keyboard" MIDI controllers for example. This board is a "helper" PCB that makes the job a little … Continue reading Pico, Nano, Micro Keyboard Matrix PCB →

Arduino MIDI Telephone Ringer Revisited

A little while after my last set of experiments for a Arduino MIDI Telephone Ringer I found a video from "Gadget Reboot" showing how to use the KS0835F subscriber line module from an Arduino to interface to a phone more easily. So I bought some and this is the start of a set of new experiments … Continue reading Arduino MIDI Telephone Ringer Revisited →

CD Rack Format Zynthian

Having build up one of my Zynthian IO Board PCBs my final aim is to get it behind a panel in my CD Rack synthesizer. This is how I built a panel for it. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive … Continue reading CD Rack Format Zynthian →

Arduino MIDI Telephone Ringer – Part 3

The last thing I wanted to do with my (dual) telephone ringer, well, besides trying to find six more phones and get an octave's worth of ringing, was put my dual-ringer into a box. This shows how I managed that. In part 1 I talked about the basic hardware and approach. In part 2 I … Continue reading Arduino MIDI Telephone Ringer – Part 3 →

Arduino MIDI Telephone Ringer – Part 2

Following on from part 1, I've added BT style sockets and upgraded the ringer to ring two phones. Polytelephony if you will. In part 3, I switch to an Arduino Nano and put all the circuitry into a box. https://youtu.be/IBBd9z4hKYw Warning! I strongly recommend using old or second hand equipment for your experiments. I am … Continue reading Arduino MIDI Telephone Ringer – Part 2 →