A PCB QSL card that can be used as a cross band repeater.

ESP32APRS is a APRS Internet Gateway + TNC Built In that is implemented for Espressif ESP32 processor.

OverDrive Libby Plugin for calibre

An easy way to survey addresses for OSM, inspired by Keypad Mapper

Debian packaging tutorials for the modern developer

Execute shell commands triggered by published MQTT messages

Raspberry Pi Audio Receiver with Bluetooth A2DP, AirPlay 2, and Spotify Connect

Reverse-engineering of rechargeable disposable vapes that include a small color TFT LCD (Raz/Kraze/etc.)

A Solar Powered Raspberry Pi Board

Access to the Hantek DSO5102P oscilloscope from Python

A QRP digital transceiver created from readily available parts for off-the-grid maintenance

Proper working Arduino library for the Heltec ESP32 LoRa v3 board, as well as for Wireless Stick v3 and Wireless Stick Lite v3. Uses RadioLib

File converter from DBC to RealDash XML

RealDash examples and technical materials

A tool for reading, displaying and saving data from the NanoVNA

PC GUI software for NanoVNA V2

Settings for various tools I use.

Arduino library for DRA818 VHF/UHF Band Voice Transceiver

Distributed advertisement-based BTLE presence detection reported via mqtt

Software CAN bus implementation for rp2040 micro-controllers

a structural diff that understands syntax 🟥🟩

The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

Xiaomi air filter H3 reverse engineering

A C/C++ header to help move #ifdefs out of your code

Efficient alternative to SoftwareSerial with attachInterrupt for RX chars, simultaneous RX & TX

Programs to process GoPro MP4 & Generic GPX/FIT files and create video dashboards & maps

Creating video with telemetry overlay from GPX data

A c++ library for parsing, browsing, changing and writing of GPX files

Serial port emulation over CAN bus

simple c terminal spinners