Robot Maker Toolkit
An offline reference and calculator companion for electronics makers, hobbyists, and Arduino builders.
An offline reference and calculator companion for electronics makers, hobbyists, and Arduino builders.
Pinouts, specs and wiring for common sensors, modules and shields.
Resistor codes, Ohm's law, voltage dividers and more — all built in.
Quick specs for popular dev boards like the Arduino Uno and friends.
The whole catalog ships inside the app — no connection required.
Full pinouts for Arduino UNO, Nano, Mega, Leonardo, UNO R4, ESP32 and Raspberry Pi Pico — every pin, its capabilities and the gotchas. No install needed.
Open the pinout library →