https://github.com/notninja/node-blinkt
Node.js module for interacting with the Raspberry Pi Blinkt! addon
https://github.com/notninja/node-blinkt
Last synced: about 1 year ago
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Node.js module for interacting with the Raspberry Pi Blinkt! addon
- Host: GitHub
- URL: https://github.com/notninja/node-blinkt
- Owner: NotNinja
- License: mit
- Created: 2017-06-21T19:38:48.000Z (almost 9 years ago)
- Default Branch: master
- Last Pushed: 2018-06-14T15:38:09.000Z (about 8 years ago)
- Last Synced: 2025-04-19T23:35:28.931Z (about 1 year ago)
- Language: JavaScript
- Size: 36.1 KB
- Stars: 6
- Watchers: 1
- Forks: 3
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGES.md
- Contributing: CONTRIBUTING.md
- License: LICENSE.md
- Authors: AUTHORS.md
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[Blinkt](https://github.com/NotNinja/node-blinkt) is Node.js library that allows you to interact with your Blinkt
hardware:
https://shop.pimoroni.com/products/blinkt
[](https://david-dm.org/NotNinja/node-blinkt)
[](https://github.com/NotNinja/blinkt/blob/master/LICENSE.md)
[](https://www.npmjs.com/package/blinkt)
* [Install](#install)
* [API](#api)
* [Bugs](#bugs)
* [Contributors](#contributors)
* [License](#license)
## Install
Install using `npm`:
``` bash
$ npm install --save blinkt
```
## API
### Set A Single Pixel
The bread and butter of Blintk! is setting pixels. You can set any of the 8 pixels on your Blinkt! to one of around 16
million colors!
The `brightness` argument is completely optional. Omit it to keep the last brightness value set for that particular
pixel.
``` javascript
blinkt.setPixel(index, red, green, blue, brightness)
```
| Parameter | Description | Required |
| ---------- | ------------------------------------------------------------------ | -------- |
| index | The horizontal position of the pixel (between 0 and 7 - inclusive) | Yes |
| red | The amount of red to be set (between 0 and 255 - inclusive) | Yes |
| green | The amount of green to be set (between 0 and 255 - inclusive) | Yes |
| blue | The amount of blue to be set (between 0 and 255 - inclusive) | Yes |
| brightness | The brightness to be set (between 0 and 1 - inclusive) | No |
### Set All Pixels
Sometimes you need to set all the pixels to the same color. This convenience method does just that!
The `brightness` argument is completely optional. Omit it to keep the last brightness values set for each pixel.
``` javascript
blinkt.setPixels(red, green, blue, brightness)
```
| Parameter | Description | Required |
| ---------- | ------------------------------------------------------------- | -------- |
| red | The amount of red to be set (between 0 and 255 - inclusive) | Yes |
| green | The amount of green to be set (between 0 and 255 - inclusive) | Yes |
| blue | The amount of blue to be set (between 0 and 255 - inclusive) | Yes |
| brightness | The brightness to be set (between 0 and 1 - inclusive) | No |
### Show
None of your pixels will appear on Blinkt! until you `show()` them. This method writes all the pixel data out to your
device.
``` javascript
blinkt.show()
```
### Clear
Exactly the same as calling `setAll(0,0,0)`, clear sets all the pixels to black.
You must also call `show()` if you want to turn Blinkt! off.
``` javascript
blinkt.clear()
```
### Enable/Disable Clear On Exit
Sometimes you want a script that runs and quits, leaving a pattern up on Blinkt!
``` javascript
blinkt.setClearOnExit(value)
```
| Parameter | Description | Required |
| --------- | ------------------------------------------------- | -------- |
| value | `true` to clear pixels on exit; otherwise `false` | No |
### Get A Single Pixel
Returns the colors and brightness for a particular pixel.
``` javascript
blinkt.getPixel(index)
```
| Parameter | Description | Required |
| --------- | ------------------------------------------------------------------ | -------- |
| index | The horizontal position of the pixel (between 0 and 7 - inclusive) | Yes |
### Constants
Blinkt! has 8 pixels. Simple. Use the constant `NUM_PIXELS` when you’re iterating over pixels, so you can avoid a *magic
number* in your code.
``` javascript
blinkt.NUM_PIXELS
```
## Bugs
If you have any problems with using this library or would like to see changes currently in development you can do so
[here](https://github.com/NotNinja/node-blinkt/issues).
If you believe that you are experiencing issues with your Blinkt hardware, then you
[get help](http://forums.pimoroni.com/c/support).
## Contributors
If you want to contribute, you're a legend! Information on how you can do so can be found in
[CONTRIBUTING.md](https://github.com/NotNinja/node-blinkt/blob/master/CONTRIBUTING.md). We want your suggestions and
pull requests!
A list of Blinkt contributors can be found in
[AUTHORS.md](https://github.com/NotNinja/node-blinkt/blob/master/AUTHORS.md).
## License
See [LICENSE.md](https://github.com/NotNinja/node-blinkt/raw/master/LICENSE.md) for more information on our MIT license.
[](https://not.ninja)