I²C Rotary Encoder

Rotary Encoder with I²C Interface based on ATtiny412

Stefan Wagner

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Description

Rotary encoders are a nice touch for many projects. However, their control requires some pins, interrupts and debouncing. Thanks to this device, a rotary encoder can be easily controlled via the I²C interface, the built-in ATtiny202/212/402/412 does the rest. By assigning different I²C addresses, it is even possible to daisy-chain several rotary encoders. The device is powered via the I²C connection and operates in the voltage range between 2.7V and 5V.