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Using GPIO pin and neopixel Raspberry Pi 5, Failed to open PIO device (error -22)
I have switched from my Raspberry Pi 4 to Raspberry Pi 5 for computational power means for part of a project. I have encountered many errors trying to use NeoPixels on the pi5 (was working fine on the ...
2
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1
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82
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Problems controlling SK6812RGBW/Neopixel with STM32H7
I'm trying to control a strip of 9 SK6812RGBW LED's with an STM32H757XIH6 microcontroller. I've been through a couple of tutorials on how to use DMA to control the PWM, and I've gone with this ...
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2
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76
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How do we mirror two 8x8 Adafruit NeoPixels so that they are synced and showing the same design?
We are trying to code two Adafruit 8x8 NeoPixels, but only one of them is lighting up with our designated pattern. We want the other one to mirror the same pattern, but the code we have isn't working. ...
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398
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ESP32 with neopixel library causes TG1WDT_SYS_RESET bootloop
The neopixel library is causing a TG1WDT_SYS_RESET bootloop on a DOIT ESP32 DEVKIT V1 in Arduino IDE.
rst:0x8 (TG1WDT_SYS_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,...
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1
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123
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Adafruit NeoPixel refuses to use GFX library fonts
I have an ESP32-S3-Matrix and I've programmed it to display the number 99 and count down on button press to 0. The matrix is properly displaying the number 99 using the default font, but it is cut off ...
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1
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78
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C++ 2D array types
I am trying to drive a Neopixel strip from a 16MHz 5V Adafruit Trinket
I have a button to cycle around off, white, red, green & blue, so I want to store those five options as RGB values
In my code,...
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1
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1k
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ArduinoFFT library argument list compilation error in Arduino
I am creating a sound visualizer using an arduino nano,electret condenser microphone and 8X32 matrix and i keep getting the same error.
here is the code:
#include <ArduinoFFT.h>
#include <...
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1
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886
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Importing Neopixel
I am working on a project that requires adafruit circuitpython neopixel. So I ran
pip3 install neopixel
It said I need to create a virtual environment so I did and ran the command in it and it said ...
2
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1
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1k
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Neopixel library can not be run in a virtual environment in python (requires sudo) for raspberry pi
Is it possible for the Adafruit neopixel library to have root access to a raspberry pi 4b, whilst not being in a virtual environment to control WS2812B leds. I have downloaded the adafruit module in ...
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1
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77
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Stopping a repeated for loop overloading the microcontroller
I have some RGB LEDs, and I want to draw a gradient on to them. The gradient is stored as a list of tuples, each tuple containing the R G and B values for the LEDs. I iterate through the list, and add ...
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1
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211
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Animating 3600 neopixels with RPi is slow
I have SPI RGB led strip with three wires connection:
– TX1818 driver (manufacturer says "it’s compatible with TM1812, UCS1903, SM16703, WS2811–2815")
– 12V, 9.3 W/m, 5060, 60/metre
– 3600 pixels, 60 ...
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1
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2k
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Adafruit neopixel library not loading correctly onto raspberry pi pico
I've been trying to use the adafruit neopixel library to... well... use neopixels. However, I've been having some problems. I am using a pi pico, thonny as my IDE, and Ubuntu as my OS.
I started off ...
2
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94
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Runing and ending a Python script with sudo from inside another python script?
I am currently working on an Raspyberry Pi Camera project where I am using an Adafruit Neopixel ring as a ringlight.
The Neopixle library needs the script to be run with sudo in order to work, but I ...
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330
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Can't get Adafruit Neopixel to work with Wemos D1
I am trying to get a very simple ESP8266 project to work but I keep failing and have no clue why.
These are my components:
Wemos D1 (ESP8266MOD)
WS2812B 5050 LED Stripe (2m with 60 LEDs/m)
5V 10A DC ...
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Using a raspberry pi with pymongo and neopixels together
So, I am beginning a project where I want to use a Raspberry Pi to take input from a MongoDB database from the web and translate it into neopixel colours. I am running a virtual environment.
My ...