![esp pixelstick esp pixelstick](https://holtzmanchristmas.files.wordpress.com/2017/12/img_5576-e1512115041222.jpg)
I have strips of neopixels, high capacity 5dv power supplies and either esp32 or 8266 - tried the combinations. I am trying to do nearly the same thing, but all over the place I have read that I need a level shifter. Can anyone suggest anything else to try before I conclude that the strip is just faulty? And, if I swap the strip out for a shorter stick, those work just fine. I've played around with using the 400Kbps and 800Kbps protocols, and all the other obvious settings I can find.Īs I mentioned above, I just get nothing at all - the pixels don't turn on at all. I've tried with the example programs that come with both NeoPixelBus and FastLED in the Arduino IDE (mostly the former, as it is apparently more stable on the ESP32).I've tried different output pins on my ESP32 just in case something is wonky about the first one I tried.I've got a 330 ohm resistor between the level shifter and the first pixel, and I've checked to make sure I'm sending data in the right direction on the strip (according to the little arrows on the PCB). I've tested the voltage by setting the data pin to high and checking with a multimeter, and I'm getting the correct 5v coming out of the shifter. Using a level shifter to get from the 3.3v logic on the ESP32 to the 5v logic the neopixels need.I've tested the 'far' end of the power on the strip with a multimeter, and I'm getting 5v all the way down.
![esp pixelstick esp pixelstick](http://forkineye.com/wp-content/uploads/2020/12/ESPixelStick-V3-Parts-scaled.jpg)
I've got a capacitor as recommended across the power wires. I do have the grounds between the 5v on the power supply and the on-board ground on the ESP32 connected to each other.
Esp pixelstick full#
Specifically, I'm using a full 5m roll of these. I could use some help debugging whether it's an issue with my wiring, software, or a potentially defective strip. I'm trying to control a Neopixel strip from an ESP32, and am getting nothing - pixels all stay off.