ESP8266 Community Forum

- Sun May 13, 2018 10:02 am #75914

stagedRelay.JPG

Code: Select allOff     Relay3=Off,  Relay2=Off,  Relay1=Off

Low     Relay3=Off,  Relay2=Off,  Relay1=On

Medium  Relay3=Off,  Relay2=On,   Relay1=Off

High    Relay3=On,   Relay2=On,   Relay1=Off

Power is only applied to one output at anytime. Just set the relays for the desired state. I would keep it simple and call a function for each state. Each function turns on/off the relays to match that state.

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- Sun May 13, 2018 4:45 pm #75921 Ah, yes. Thanks.

- Thu May 24, 2018 6:31 am #76063 I looked at this myself for a ceiling fan with light and believe the sonoff 4 channel pro will do the trick as you can interlock channels both by setting on the board and the no & nc contacts

- Tue May 29, 2018 4:34 pm #76156 Follow up. I ended up rebuilding my greenhouse RasPi as a hotspot. Distance, building etc makes the main router marginal signal wise (192.168.0.1) -86dB and the ghouse (192.168.1.1)-35dB. And, knock on wood, the last 3 days things have worked per spec.
https://lidderdale.net/hydro/ "Todays temps". [ the graph is generated realtime ] Any time you see a large temp drop in just a few minutes - due to large dark sad crying cloud ...