I am very new to the hobby electronics scene but I decided to dive in to complete a passion project of mine. I am trying to drive around 35 WS2812B LEDs purchased from this link. I am powering them with an external power supply, and have grounded them to the RPi (3 B v1.2) as well as connected Din to GP18. I am using this sample code found on the website:
Code: Select all
import board
import neopixel
pixels = neopixel.NeoPixel(board.D18, 9)
pixels[0] = (255, 0, 0)
Continuity trough the 5v and ground lines from the 1st LED to the last
Using different PWM GPIO pins
Checking voltage on GPIO 18 when the script was run (no voltage indicated)
I'm running out of things to try. Please share any insight you have