Hi all
I need help understanding something, it’s probably pretty rudimentary. I’ve been playing around with a cheap LED strip, no fancy addressable chip or anything, and a D1 mini. 12V+ is connected to LED+, 12V GND is shared with D1 mini GND and LED strip GND connected to D1 mini pin 6. I use below code on the D1.
I can adjust the brightness of the LED strip in HA but even when I turn off the light switch in HA there is still a faint glow from the LED strip. How come?
No luck. Even with zero_means_zero there is a faint glow. I’m really a curious layman at electronics but my guess is the D1 pin isn’t completely “open” when HA sends “off” to the D1. I’ve done some more searching and a few of the DIYs out there mention resistors and/or mosfets.