Nomblr turned her dad’s Morse key from the 1950s into a USB keyboard. This is a pretty impressive modernization of an old-time device. It’s even more impressive that this was her first foray into working with electronics.
There is a bit of a write up on the project over on Hackaday.
The project sends a midiNote 127 with the velocity 127 when you touch the metal pin by sensing capacitive touch. When the prototype was done on a solderless breadboard it was a bit fragile. Koka didn’t want to wait for a PCB to be made, so he spent $1.40 at IKEA on a jar. He drilled a few holes in the top and made a secure enclosure for his project.
Here’s a nifty test video by forum user Potatotron
This module is designed for Teensy boards and has the proper signal voltages for use with the audio library. It uses the MAX9814 – a high quality, now noise, pre-amp chip. This module is designed to work directly with the Teensy analog inputs – you don’t need the audio shield to use this module.
If you are doing any project that requires a microphone and a Teensy, go buy this now.
Ranjit Bhatnagar created a stone sound sculpture that responds to the settling of its stones and the weather by playing sounds. This beautiful sculpture uses sensors for pressure, humidity, temperature, and barometric pressure to collect data and send it to a drone synthesizer, making the sculpture feel alive with sound.