I’ve created a simple circuit on perfboard for my 5 meter long WS2812b (60 leds/m) led strip and I keep running into weird issues. Here is a picture of my setup:
Note that I’ve soldered everything on a perfboard (and used wires with the right wire gauge) but I used a breadboard in Fritzing to display my configuration.
Initially the LED-strip worked fine but after a couple times unplugging it, it became unreliable: the NodeMCU V3 doesn’t connect to my Wi-Fi network, doesn’t save changed settings and doesn’t create a AP while my router doesn’t show it’s connected to my network. Flashing it again doesn’t solve it. When it works, it works great.
Can someone confirm that my wiring is OK? If my wiring is OK then I know that the NodeMCU has to be the cause and I’ll have to order a new one.
- Power supply: Mean well LRS-50-5
- Level shifter: 74AHCT125
- Board: NodeMCU V3
- LED-strip: WS2812b (30 LEDs per meter, 150 LEDs in total)
EDIT: final setup in this comment.