@tzarc's custom keyboard designs.

Hardware Design: Eurorack shield for teensy 4.1 with 14 in / 16 out analog channels

Achoo uses a Raspberry Pi to predict if my son will need his inhaler on any given day using weather, pollen, and air quality data. If the prediction for a given day is above a specified threshold, the Pi will email his school nurse, and myself, notifying her that he may need preemptive treatment. Community-sourced health monitoring!

Microphone Pre-amplifier

A collection of keyboards & things.

🏠 My Home Assistant configuration and documentation. More info below.

Placa Franzininho DIY - Placa compatível com Arduino no formato DIY para oficinas de soldagem

LaserProjector V2 is a battery-powered, ESP32-based laser XY scanner using stepper motors to deflect the beam. It has auto-homing functionality, and can be controlled wirelessly (Wi-Fi & Bluetooth).

Digitally controlled electronic load, 2022

Ghoul Planck-like MicroMod keyboard

Electronic hardware prototyping system. Solderless, robust and open source. Solves the typical problem of the circuit that works on a breadboard but stops working on a real-world setup. Easy to replicate and compatible with virtually every electronic module.

Zigbee USB power monitor and switch

Klipper Nano Expander, an Arduino Nano Shield to be used as an auxiliary Klipper MCU

Node-RED nodes to ESPhome devices

A basic USB mouse PCB based on the PAW3526D8-FJY2 Sensor.

a DIY flat christmas decoration with a ATtiny25, 20 led´s and a coin cell battery

A linear adjustable power supply for modular synthesizers in the Eurorack format. It's easy to build and outputs more than 1A at +12V, -12V and +5V.

A simple but versatile bus board for modular synthesizers in the Eurorack format. Cheap and easy to build and with many slots for connecting modules with both 10-pin and 16-pin connectors.

Through-hole version of Mutable Instruments Frames

Recources to build the MFOS - Noise Toaster Synth by Ray Wilson