I'm working on a project that involves using a microcontroller's 5V output to make a connection between two points on a separate circuit (with it's own power source).
I'm using an Arduino, which is operating at 5V. I'm going to connect it to a wireless garage door opener and/or a remote (unlock/lock) for my car. The problem is that the circuits for both of these devices are operating at 3V, and the Arduino is at 5.
How would I take a 5v logic signal (0V for "off", 5V for "on") and use it to imitate button presses on these remotes? I've already "broken out" all the connections I want to make with wires connected to the remote circuits. What I'm trying to accomplish with the Arduino is the equivalent to touching the wires together to short them and complete the circuit.
What would be the best/easiest way to do this?
I'd really appreciate any help.
Trey
I'm using an Arduino, which is operating at 5V. I'm going to connect it to a wireless garage door opener and/or a remote (unlock/lock) for my car. The problem is that the circuits for both of these devices are operating at 3V, and the Arduino is at 5.
How would I take a 5v logic signal (0V for "off", 5V for "on") and use it to imitate button presses on these remotes? I've already "broken out" all the connections I want to make with wires connected to the remote circuits. What I'm trying to accomplish with the Arduino is the equivalent to touching the wires together to short them and complete the circuit.
What would be the best/easiest way to do this?
I'd really appreciate any help.
Trey