I have a very low power video camera (3.7V 150mA) that has two buttons: power-on and record.
Normally, as in figure #1 you tap power-on switch to turn it on and tap record switch to start recording.
Instead of using the buttons on the camera, I want to use a wireless controller with 2 outputs to operate power-on and record. When I press a button on the wireless remote, the wireless controller provides 3.7V on each of its 2 outputs. (sell figure #2)
I would just connect two relays to the camera switches and wireless controller (as in figure 3), but I do not have enough space for the relays.
Is there a transistor type (or simple circuit) I can use that will serve the same purpose as the relays?