Comment on Disconnect wire to close a switch with a simple circuit
Romkslrqusz@lemmy.zip 5 days agoIt is an NPN, It isn’t flipping when base is pulled to ground / is behaving as expected.
When using NPN, the problems were related to the resistor. I managed to find a “sweet spot” at 330ohms where the module is able to turn on and play without cycling and the resistor sits at a comfortable enough temperature.
I’m going to try timing plugging in the battery so that the resistor doesn’t shed all of its power before the gift is opened :)
raspberriesareyummy@lemmy.world 5 days ago
Sorry, I clearly misunderstood - so the problem isn’t the tripwire implementation but rather the high current that you need to switch. My first thought was (as someone else suggested) to use a relay, and a quick web search brought me to this mention of “Darlington” transistors: itp.nyu.edu/…/transistors-relays-and-controlling-…