Adafruit_NeoMatrix
Adafruit_NeoPixel
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| Adafruit_NeoMatrix | Adafruit_NeoPixel | |
|---|---|---|
| 1 | 16 | |
| 178 | 2,988 | |
| 3.4% | 1.2% | |
| 3.6 | 4.1 | |
| 5 months ago | 3 days ago | |
| C++ | C++ | |
| GNU General Public License v3.0 only | GNU Lesser General Public License v3.0 only |
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Adafruit_NeoMatrix
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I made an arduino drum machine: ginTronic CR-1
No multiplexing! the LCD actually only uses 2 ports in the end thanks to this cool lib https://github.com/adafruit/Adafruit_NeoMatrix
Adafruit_NeoPixel
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BIQU B1 Marlin 2.1.2 NEOPIXEL not working properly
// Support for Adafruit NeoPixel LED driver #define NEOPIXEL_LED #if ENABLED(NEOPIXEL_LED) #define NEOPIXEL_TYPE NEO_GRB // NEO_GRBW, NEO_RGBW, NEO_GRB, NEO_RBG, etc. // See https://github.com/adafruit/Adafruit_NeoPixel/blob/master/Adafruit_NeoPixel.h //#define NEOPIXEL_PIN 4 // LED driving pin //#define NEOPIXEL2_TYPE NEOPIXEL_TYPE //#define NEOPIXEL2_PIN 5 #define NEOPIXEL_PIXELS 2 // Number of LEDs in the strip. (Longest strip when NEOPIXEL2_SEPARATE is disabled.) //#define NEOPIXEL_IS_SEQUENTIAL // Sequential display for temperature change - LED by LED. Disable to change all LEDs at once. #define NEOPIXEL_BRIGHTNESS 255 // Initial brightness (0-255) #define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup // Support for second Adafruit NeoPixel LED driver controlled with M150 S1 ... //#define NEOPIXEL2_SEPARATE #if ENABLED(NEOPIXEL2_SEPARATE) #define NEOPIXEL2_PIXELS 15 // Number of LEDs in the second strip #define NEOPIXEL2_BRIGHTNESS 127 // Initial brightness (0-255) #define NEOPIXEL2_STARTUP_TEST // Cycle through colors at startup #define NEOPIXEL_M150_DEFAULT -1 // Default strip for M150 without 'S'. Use -1 to set all by default. #else //#define NEOPIXEL2_INSERIES // Default behavior is NeoPixel 2 in parallel #endif // Use some of the NeoPixel LEDs for static (background) lighting //#define NEOPIXEL_BKGD_INDEX_FIRST 0 // Index of the first background LED //#define NEOPIXEL_BKGD_INDEX_LAST 5 // Index of the last background LED //#define NEOPIXEL_BKGD_COLOR { 255, 255, 255, 0 } // R, G, B, W //#define NEOPIXEL_BKGD_ALWAYS_ON // Keep the backlight on when other NeoPixels are off #endif
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RGB calibrate gives me magenta, cyan, yellow
neopixel code is the strandtest: https://github.com/adafruit/Adafruit_NeoPixel/blob/master/examples/strandtest/strandtest.ino
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Can someone tell me how i can turn on the LED
Lookup NeoPixel library
- FYSETC Mini 12864 v2.1 (RGB) + Octopus v1.1 + Marlin 2.1.x
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Building an Array of "nop" write commands
adafruit/Adafruit_NeoPixel has assembly code for AVR. Plus ESP and Rpi which are a lot easier to read. And the protocol does look like inverted WS2812; it should be possible, although tedious, to modify the library to invert the pin.
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What is causing a delay in my loop?
I looked at the neopixel github and I couldn't find any functions that took floats as arguments, so I think you can get away without using floats because they're reinterpreted as ints and truncated anyway, but if what you have works then don't bother.
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RGB/RGBW mix and match help!
I'm not sure if that is the same thing. Back when I used it I got it from Adafruit which links to this Github.
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NeoPixels on the Arduino Nano RP2040
The most important question first, the Adafruit NeoPixel Library does support the RP2040 since version 1.10.2. So make sure you are using the right version. To install the library please follow the steps explained here: Adafruit NeoPixel Installation.
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Neopixels: ultra-low RAM
The Adafruit Neopixel library is great, but uses 3 bytes of RAM per pixel....in my application that's nearly 3kB (for the pixels alone!), which rules out the M328/Uno, and basically all of the 8-bit chips. I have a prototype running well using Adafruit's Neopixel library on a Mega 2560, but those are hard to source in the current market. And it's overkill for my use case.
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Is it possible to program a 5mm neopixel LED in a way where one switch turns it on, and then the activation of another switch changes the color?
Using something like the Adafruit NeoPixel library there are commands to set intensity and to set color: setBrightness() setPixelColor()
What are some alternatives?
arduino_midi_library - MIDI for Arduino
kmk_firmware - Clackety Keyboards Powered by Python
NeoPixelBus - An Arduino NeoPixel support library supporting a large variety of individually addressable LEDs. Please refer to the Wiki for more details. Please use the GitHub Discussions to ask questions as the GitHub Issues feature is used for bug tracking.
qmk_firmware - See the "forkreadme" branch or the following link for a description of branches maintained in this fork.
Adafruit_SH110x - Arduino library for SH110x based monochrome OLEDs
TelnetStream - Arduino Stream implementation over Telnet for OTA logging and debugging
FastLED - The FastLED library for colored LED animation on Arduino. Please direct questions/requests for help to the FastLED Reddit community: http://fastled.io/r We'd like to use github "issues" just for tracking library bugs / enhancements.
ArcticKiwii-Pegboard-Lights - A multi-pattern led strip w/ potentiometers for hue/brightness and a button.
Adafruit_BNO055 - Unified sensor driver for the Adafruit BNO055 orientation sensor breakout
Adafruit_MMC56x3 - Adafruit Arduino library driver for MMC5603 / MMC5613 magnetometers
qmk_firmware - Open-source keyboard firmware for Atmel AVR and Arm USB families
Arduino-SDI-12 - An Arduino library for SDI-12 communication with a wide variety of environmental sensors. This library provides a general software solution, without requiring any additional hardware.