CMPS03 electronic direction indicator + I2C / serial communication converter
The device works with 7-12V DC
It gives electronic direction (0-359) 2400 bps with serial communication
This is used in the direction of anthropometers of radio amateurs.
We only need 3 leads + 12V, 0V and RS232
2400 bps is because it can reach far to about 100m.
In fact, the device has doubling:
Includes I2C / RS232 converter. by
They are overlapping.