I'm continuing my series of posts seeing what I can do with a toy keyboard. This post looks at some possible uses of the additional IO pins I freed up in part 3. Part 1 provides all the details for adding an Arduino to the original toy keyboard. Part 2 demonstrates the toy keyboard running … Continue reading Toy Keyboard Tone Piano – Part 4
Category: Advanced
Toy Keyboard Tone Piano – Part 3
This post looks in a little more detail at the keyboard matrix decoding for the toy keyboard to see what is possible with less IO pins. Part 1 provides all the details for adding an Arduino to the original toy keyboard. Part 2 demonstrates the toy keyboard running the Oskitone "Scout" firmware. Warning! I strongly … Continue reading Toy Keyboard Tone Piano – Part 3
Toy Keyboard Tone Piano – Part 2
Having now plugged an Arduino into my Toy Keyboard, it is time to start experimenting. The first thing I really wanted to do, was build an Oskitone Scout, but not having a 3D printer or the funds to purchase one, I thought I'd have a go at getting the code to run on my toy … Continue reading Toy Keyboard Tone Piano – Part 2
Toy Keyboard Tone Piano
I have a few old toy keyboards kicking around that I've wanted to put an Arduino in, so I finally pulled one apart and had a go. I was "live tweeting" it as I went in this Twitter thread, but thought I'd gather everything so far together into a single post. Further posts in this … Continue reading Toy Keyboard Tone Piano
Arduino RF24 MIDI Interface – Part 2
Having got the basics of "wireless MIDI" working with my nRF24L01 radios, I wanted to take advantage of the inherent "broadcast" nature of radio and see if I could transmit to a number of receivers at the same time. It turned out to be quite a bit more involved than I was expecting! But I … Continue reading Arduino RF24 MIDI Interface – Part 2
Raspberry Pi Pico Multi MIDI Router – Part 2
One thing I've wanted to do since building my Raspberry Pi Pico Multi MIDI Router is build a board a bit like ones DeftAudio produces for the Teensy. This posts describes a DIY version of a 4+2 IN, 4+2 OUT MIDI board for the Raspberry Pi Pico. Warning! I strongly recommend using old or second hand … Continue reading Raspberry Pi Pico Multi MIDI Router – Part 2
Arduino RF24 MIDI Interface
One thing I've wanted to try is wireless MIDI. I know you can get MIDI over Bluetooth (there are some rather neat commercial "wireless 5-pin MIDI" adaptors you can buy) and I believe people have used MIDI over Wi-Fi by using ipMIDI ("MIDI over Internet Protocol"). But I've had some cheap nrf24L01 radios for a … Continue reading Arduino RF24 MIDI Interface
Raspberry Pi Pico I2C MIDI Interface – Part 4
For this final (for now) part of my experimenting with my Raspberry Pi Pico I2C MIDI Interface, I've set it up to talk to multiple Arduino's, each with a speaker to act as an I2C MIDI "tone module". In part 1, I tested the concept of a Pico I2C MIDI interface. In part 2, I … Continue reading Raspberry Pi Pico I2C MIDI Interface – Part 4
Raspberry Pi Pico I2C MIDI Interface – Part 3
Continuing my experiments with my Raspberry Pi Pico I2C MIDI Interface, one comment on Twitter asked about latency, so I thought I'd try to see if it was possible to measure how long it took for a complete round trip of a MIDI message from an Arduino through the Pico, back out over I2C to … Continue reading Raspberry Pi Pico I2C MIDI Interface – Part 3
Raspberry Pi Pico I2C MIDI Interface – Part 2
Following on from Raspberry Pi Pico I2C MIDI Interface this post looks at how to use the I2C MIDI layer with the Adafruit MIDI library for CircuitPython. 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 … Continue reading Raspberry Pi Pico I2C MIDI Interface – Part 2
