Six AC input are used to measure the current of a TZ77V transformer.
The two AC inputs monitor 100-240V power.
The RS232 port is used to configure the card.
Each 100-240V AC input is isolated by an optocoupler.
The data are read by a 18 pins PIC 16F88 which receives the commands and sends the data throught a 433MHz radio transmitter.
Sends its data with 433MHz transmitter using a protocole similar to the Lacrosse WS protocole.
Schematics, components and printed board are available in pdf format
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