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Artoo
Binary, decimal and hex converter
Board release tracker: Raspberry Pi, ESP32 and Arduino
GPIO pinout: Raspberry Pi, Pico, ESP32 and Arduino Uno
LED resistor calculator
Maker tools
Ohm’s law calculator
Resistor color code calculator
GPIO pinout: Raspberry Pi, Pico, ESP32 and Arduino Uno
Interactive GPIO pinout
Raspberry Pi 40-pin header
Raspberry Pi Pico / Pico W
ESP32 DevKitC V4
Arduino Uno R3
5 V
3.3 V
GND
GPIO
I2C
SPI
UART
ADC
Careful
Control
Find a pin
Tap a pin to see what it does.