Skip to content
This repository has been archived by the owner before Nov 9, 2022. It is now read-only.

nathany/bobblehat

main
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

bobbleHAT

A Go library for Raspberry Pi HATs (Hardware Attached on Top), starting with the Sense HAT.

GoDoc Build Status

Documentation

Screen

The Sense HAT has an 8x8 LED matrix that could be used to display the status of a headless server, to write a mini-game, or countless other possibilities.

You can create an 8x8 frame buffer, set pixels with (x,y) coordinates, and then draw the frame buffer to the screen.

fb := screen.NewFrameBuffer()
fb.SetPixel(0, 0, color.Red)
screen.Draw(fb)

Colors are specified as red, green, blue (RGB) components with a range of 0-255. However, these are converted down to 32 shades (0-31) before being sent to the screen.

cyan := color.New(0, 255, 255)

A frame buffer is an 8x8 texture that can be drawn to the screen, but you can also create textures of any size (width, height).

tx := texture.New(16, 16)
tx.SetPixel(8, 8, color.White)

Or load a PNG file into a new texture.

tx, err := texture.Load("image.png")

The blit function will copy between textures with destination and source offsets (x, y) and dimensions (width, height). See the image scrolling example for one use, but this can always be used to draw multi-pixels sprites (opaque).

texture.Blit(fb.Texture, 0, 0, tx, 0, 0, 8, 8)

Stick

The Sense HAT has a tiny joystick control.

input, err := stick.Open("/dev/input/event0")
if err != nil {
	log.Fatal(err)
}

for {
	select {
	case e := <-input.Events:
		switch e.Code {
		case stick.Enter:
			fmt.Println("⏎")
		case stick.Up:
			fmt.Println("↑")
		case stick.Down:
			fmt.Println("↓")
		case stick.Left:
			fmt.Println("←")
		case stick.Right:
			fmt.Println("→")
		}
	}
}

Motion

Gyroscope, Accelerometer, Magnetometer.

Not yet implemented.

Weather

Temperature, Humidity, Barometric pressure

Not yet implemented

Gopher Gala 2016

Team

Media

bobbleHAT in action:

Team:

License

The code is licensed under the Simplified BSD License. Copyright © 2016 bobbleHAT Authors.

The original Go gopher © 2009 Renée French. Used under Creative Commons Attribution 3.0 license.

Illustrations © 2016 Olga Shalakhina.

Related Projects

About

A Go library to support Raspberry Pi HATs (Hardware Attached on Top), starting with the Sense HAT.

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages