I'm working on a project to control a garage door using a ip camera's i/o port to "press the button" on a opener remote control.
The i/o port gives me 3.3vdc that can be applied in an on/off manner or in a momentary pulse (configurable). The i/o port has a max load of 50mA.
(pin 2 - 3.3vdc, 50mA max load)
(pin 4 - digital output, internal connection to ground when activated, floating (unconnected) when deactivated. If used with an inductive load, e.g. a relay, a diode must be connected in parallel with the load for protection against voltage transients)
The opener remote control uses a 3.3v battery. I've identified the momentary switch on the remote and soldered leads to the negative and positive pins that will actuate the door when shorted.
I'm stuck at identifying the relay and protection diode required in this scenario.
Any help or suggestions would be highly appreciated. TIA.
The i/o port gives me 3.3vdc that can be applied in an on/off manner or in a momentary pulse (configurable). The i/o port has a max load of 50mA.
(pin 2 - 3.3vdc, 50mA max load)
(pin 4 - digital output, internal connection to ground when activated, floating (unconnected) when deactivated. If used with an inductive load, e.g. a relay, a diode must be connected in parallel with the load for protection against voltage transients)
The opener remote control uses a 3.3v battery. I've identified the momentary switch on the remote and soldered leads to the negative and positive pins that will actuate the door when shorted.
I'm stuck at identifying the relay and protection diode required in this scenario.
Any help or suggestions would be highly appreciated. TIA.