Work with AT Commands using your SIM800L module.

How to display an image on an analog TV.

PLC IEC-61131-3 ladder programming >>> Modbus TCP/IP >>> PID tuning >>> HMI >>> Wiring diagram.

Extending Morse Code Transceiver to work with digital data. This project achieves a throughput of 20bps, 2x over Morse code.

Add Ethernet connectivity to the CNC Shield for Arduino. Control mills, lasers, and other devices with NEMA steppers over your network.

A compact wireless gas sensing system for real-time ammonia detection at the ppm range.

An ATmega88 high-voltage parallel fuse writer for Arduino.

This is a project to make a focus stacking rail from a piece cut out of an old microscope.