V1 connected to fairy lights from the dollar tree, using an ultrasonic distance sensor to activate the lights and a cooldown timer to keep them on for awhile.

ino - 1.66 kB - 12/23/2018 at 21:19



Sketch to drive a strip of 150 neopixels, using a diode to wire the first 2 neopixels to convert the voltage from the NodeMCU in a way that allows you to drive the pixels without any additional hardware.

ino - 1.72 kB - 12/23/2018 at 21:14