Hello (rank newbie here). I’m working with a Lilypad mini twinkle, but find the LEDs are way too bright for my experiment.
Is there a variable resistor that could be used to control the brightness? Or is there some other recommended approach?
Thank you!
How many LEDs do you have connected? If its just a few per channel, a 1K potentiometer (variable resistor) might work for you.
It’s four white LEDs for twinkling stars in a diorama. They are behind a piece of dark paper with small holes for the stars, but they still overwhelm the scene. Thanks.
I’d try a 1K potentiometer and wire between ground and your LEDs.
On the potentiometer, connect one outside terminal to ground then connect the center and other outside terminal together and to the ground on your LEDs. Dial the pot up or down to vary the brightness. If you don’t have a potentiometer handy you could substitute different resistors that vary in value from 220 ohms to 1000 or 2000 ohms.
Note: this is a hack, the correct way to do it is to edit the code in your Lily Twinkle to vary maximum brightness but that’s probably a bigger job than you need for what you’re attempting to accomplish.