[back to menu]

Electric power monitoring card


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.

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

[back to menu]