- 2836 Adafruit NeoPixel Digital RGBW LED Strip White PCB 30 LED/m 1m
- 2968 Adafruit Mini Skinny NeoPixel Digital RGB LED Strip 1m
One of the answers linked to an Adafruit article with a photo that showed the loose red and black connected to the screws of a barrel connector adapter and the JST white and black to the microcontroller - via an opposite gender JST connector. THAT makes some sense to me. I hope I'm understanding it correctly.
The function of the black wire on the JST connector is to provide common ground between the power supply and the microcontroller. Do I have that right?
- red lead to external power V+
- loose black lead to power GND
- white JST lead to microcontroller data pin
- black JST lead to microcontroller GND