Is there anything I can use to replace this circuit?
Its a very simple electronic switch circuit, (transistor+zener diode+resistor)
The circuit is connect to a remote control, the remote control is activated via http request via the arduino. which is controlled by an iPhone app.
Remote control, when the circuit is closed (ie two wires are connected), it is activated.
Problem, when I unplug the circuit, or when my power goes down, it will set off the remote control and activate it!
I need the circuit to be normally open, when no current is applied.
Zener diodle IN4007
Note: I dont want to use a relay, not for something this simple!