I have a cheap RF remote that controls an LED display. The button cover easily peels off and I can trigger the buttons by gently pressing a piece of solder over the interlacing connections for each button. Cool!
How might I complete this connection for 13 or so of these buttons via Arduino?
The remote uses a 3V lithium battery. I was thinking about taking out the battery and soldering on connections to the Arduino/breadboard. I guess I need to reduce the Arduino Uno digital signal voltage from (3.3v or 5v?) to 3V (resistor math hmm). Then maybe connect ground to ground side of buttons. I’m still a bit fuzzy on how to best close the connection.
Any thoughts on how to best proceed? By controlling the remote with an Arduino, I can automate my little light show based on connected events (yeah!).
Here’s the flip side if you want to see it:
Thanks for taking a look in advance.
UPDATE: The lithium battery is measuring at 3.19V. Maybe I don’t need to downgrade 3.3V or digital output pins. I have an Artemis ATP RedBoard handy that has 3.3v pins.