Attached is a picture of the relay module and a crude sketch of my design.
View attachment 39753
The 24v power source powers the 24v relay module and a receiver PCB. The RX PCB receives an external signal and sends a momentary 24v trigger to relay 3 which is connected to a pin on the Arduino. Relay 3 momentarily opens and activates a home automation response.
View attachment 39754
Relays 1 & 2 are connected to my garage door openers and to the Arduino. The Arduino triggers them.
I'm...
ESP8266/Arduino 24v DC common ground?
View attachment 39753
The 24v power source powers the 24v relay module and a receiver PCB. The RX PCB receives an external signal and sends a momentary 24v trigger to relay 3 which is connected to a pin on the Arduino. Relay 3 momentarily opens and activates a home automation response.
View attachment 39754
Relays 1 & 2 are connected to my garage door openers and to the Arduino. The Arduino triggers them.
I'm...
ESP8266/Arduino 24v DC common ground?