Optical interface for energy meter reading according to IEC 62056 (IEC 1107).
Includes magnet with 5N holding force to attach to the meter.
Can be used with a microcontroller with UART interface or a USB to TTL coverter which can be bought as an optional accessory.
Communication protocol can be found in the IEC 62056
Input voltage: 3.3V
Dimensions: 32x32x18mm (including the pin header)