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https://github.com/mcauser/micropython-p9813
MicroPython driver for P9813 chainable RGB LEDs
https://github.com/mcauser/micropython-p9813
grove grove-chainable-rgb-led micropython p9813 rgb-led
Last synced: 2 months ago
JSON representation
MicroPython driver for P9813 chainable RGB LEDs
- Host: GitHub
- URL: https://github.com/mcauser/micropython-p9813
- Owner: mcauser
- License: mit
- Created: 2017-06-13T09:30:20.000Z (about 7 years ago)
- Default Branch: master
- Last Pushed: 2024-02-13T14:51:47.000Z (5 months ago)
- Last Synced: 2024-04-15T02:58:04.717Z (3 months ago)
- Topics: grove, grove-chainable-rgb-led, micropython, p9813, rgb-led
- Language: Python
- Homepage:
- Size: 1.4 MB
- Stars: 7
- Watchers: 4
- Forks: 3
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
Lists
- awesome-micropython - micropython-p9813 - Driver for P9813 RGB LED used in SeeedStudio's Grove chainable RGB LED. (Libraries / Display)
- awesome-mpython - micropython-p9813 - Driver for P9813 RGB LED used in SeeedStudio's Grove Chainable RGB LED. (精选驱动库 / 显示类)
README
# MicroPython P9813
A MicroPython library for P9813 RGB LED drivers.
For example, the Seeed Studio [Grove - Chainable RGB LED](http://wiki.seeed.cc/Grove-Chainable_RGB_LED/).
## Example
Copy the file to your device, using ampy, webrepl or compiling and deploying. eg.
```
$ ampy put p9813.py
```
**Basic usage**
```python
from machine import Pin
import p9813
pin_clk = Pin(5, Pin.OUT)
pin_data = Pin(4, Pin.OUT)
num_leds = 10
chain = p9813.P9813(pin_clk, pin_data, num_leds)
# set the first LED to red
chain[0] = (255, 0, 0)
# set the second LED to green
chain[1] = (0, 255, 0)
# write data to all LEDs
chain.write()
# make all LEDs red
chain.fill((255,0,0))
chain.write()
# turn off all LEDs
chain.reset()
```
See [p9813_examples.py](p9813_examples.py) and [examples](examples/) for more.
## Parts
* [WeMos D1 Mini](https://www.aliexpress.com/store/product/D1-mini-Mini-NodeMcu-4M-bytes-Lua-WIFI-Internet-of-Things-development-board-based-ESP8266/1331105_32529101036.html) $4.00 USD
* [Grove - Chainable RGB LED](https://www.seeedstudio.com/Grove-Chainable-RGB-LED-p-850.html) $3.90 USD
* [Grove Male Jumper Cable](https://www.seeedstudio.com/Grove-4-pin-Male-Jumper-to-Grove-4-pin-Conversion-Cable-%285-PCs-per-Pack%29-p-1565.html) $2.90 USD
## Connections
WeMos D1 Mini | Grove Chainable RGB LED
------------- | -----------------------
D1 (GPIO5) | CI (clock) (yellow)
D2 (GPIO4) | DI (data) (white)
3V3 (or 5V) | VCC (red)
G | GND (black)
If you are chaining multiple LEDs, clock out -> clock in, data out -> data in, eg.
LED1 | LED2
---- | ----
CO | CI (yellow)
DO | DI (white)
VCC | VCC (red)
GND | GND (black)
## Links
* [WeMos D1 Mini](https://wiki.wemos.cc/products:d1:d1_mini)
* [micropython.org](http://micropython.org)
* [Adafruit Ampy](https://learn.adafruit.com/micropython-basics-load-files-and-run-code/install-ampy)
* [P9813 datasheet](https://raw.githubusercontent.com/SeeedDocument/Grove-Chainable_RGB_LED/master/res/P9813_datasheet.pdf)
## License
Licensed under the [MIT License](http://opensource.org/licenses/MIT).