Why not using your electrical installation instead?? Anyway, keep us informed, I'm interrested too. Richard. At 10:25 18/09/98 +0200, you wrote: >I am interested in building, for myself, a home automation >system with multiple emitters/receivers. The commercially >available module, in France, do not offer the required >flexibility (number of channels for instance) for my >applications. I am looking for schematics of emitters and >receivers, preferably FM modulation but AM could be good >enough. The bands I am looking at are 224 and 433 MHz. Any >help will be welcome. >The processing on this network would be done with PICs. >