NeoPixel Library for Spresense, it's supplement library for adafruit / Adafruit_NeoPixel.
(I think) adafruit / Adafruit_NeoPixel is most famous library to control NeoPixel LED strap on Arduino platform. But as of Mar/2023 it doesn't work with Sony Spresense platform. This library enables you to enjoy LED strap with Sony Spresense!
Main class in this library, Adafruit_NeoPixel_Spresense is inherited class of Adafruit_NeoPixel in adafruit / Adafruit_NeoPixel therefore Adafruit_NeoPixel_Spresense has same methods as Adafruit_NeoPixel.
| Version # | Release date | Changes |
|---|---|---|
| Ver. 0.1.0 | 2023-03-31 | First release |
Here ( (c) Marutsuelec Co.,Ltd. All Rights Reserved. ) is good reference to understand HW connection.
Go to the site and see the section, "(2) Arduinoで制御する". In summary connect 3 lines between Spresense and LED strap.
| LED strap | Spresense |
|---|---|
| DIN (green) | D6 |
| VCC (red) | 5V |
| GND (white) | GND |
Important notes: Take care power consumption of LEDs. Go Here "カスケード接続するときは全体の消費電流に注意" and check power consumption in your usage environment. If much power consumption is needed, consider to prepare external power supply equipment and use it. Original data sheet is also good reference for this topic.
This library requires adafruit / Adafruit_NeoPixel.
First of all installation of adafruit / Adafruit_NeoPixel
- Go to the Releases page.
- Download the latest release (select ZIP type package).
- In the Arduino IDE, go to the menu "Sketch > Include Library > Add .ZIP Library"
Next, installation of this library. Same operation of above installation.
- Go to the Releases page.
- Download the latest version (select ZIP type package).
- In the Arduino IDE, go to the menu "Sketch > Include Library > Add .ZIP Library"
Main class in this library, Adafruit_NeoPixel_Spresense is inherited class of Adafruit_NeoPixel in adafruit / Adafruit_NeoPixel therefore Adafruit_NeoPixel_Spresense has same methods as Adafruit_NeoPixel.
additional API for Adafruit_NeoPixel
- uint8_t get_rgb_upper()
- void set_rgb_upper(uint8_t rgb_max)
the following API is disabled
- void setPin(int16_t p)
- void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b, uint8_t w)
- void updateLength(uint16_t n)
- void updateType(neoPixelType t)
As for other Arduino board, use just adafruit / Adafruit_NeoPixel.
This software is distributed under MIT license, in detail see also LICENSE.
Copyright (c) 2023 Kota Meiwa
To implement the following methods, hideakitai/SpresenseNeoPixel (under MIT license, Copyright (c) 2019 Hideaki Tai) was great reference and some portion of the source code is active in the following methods. I'm grateful to meet amazing library!
- void Adafruit_NeoPixel_Spresense::begin(void);
- void Adafruit_NeoPixel_Spresense::show(void);
- void Adafruit_NeoPixel_Spresense::write_bit_off()
- void Adafruit_NeoPixel_Spresense::write_bit_on()
- void Adafruit_NeoPixel_Spresense::write(uint8_t value)
- void Adafruit_NeoPixel_Spresense::wait_cycles(uint32_t n)