🔍 Universal port and I2C device scanner for Arduino, ESP32, and ESP8266 microcontrollers. Automatically detects active ports, connected sensors, and I2C devices with automatic identification. Arduino ...

A lot of great ICs use I2C to communicate, but debugging a non-working I2C setup can be opaque, especially if you’re just getting started with the protocol/bus. An I2C bus scanner can be a helpful ...

This repository provides example projects and setup instructions for testing I2C communication using an Arduino board. I2C is a two-wire protocol used for communication between devices like sensors, ...

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very helpful when you want to measure the outside, ...

[Johngineer] found himself in need of an I2C sniffer, but didn’t have one available. Necessity is the mother of invention, so he put together this I2C sniffer sketch for Arduino. The arduino will ...

[Partner content] The Arduino® Plug and Make Kit™ introduces daisy-chaining extension modules on an I²C bus as a new way for rapid prototyping with Arduino. Targeted at beginners and makers alike, the ...

A tiny I2C-bus scanner with a nice tiny graphic OLED display and an AVR ATtiny44. This scanner displays the addresses of all attached I2C devices in a small matrix. The value is shiftet one bit to the ...