concertina

neopixel.go

 1package led
 2
 3import (
 4	"machine"
 5	"image/color"
 6	"tinygo.org/x/drivers/ws2812"
 7)
 8
 9type NeoPixel struct {
10	power machine.Pin
11	device ws2812.Device
12}
13
14func NewNeoPixel(data, power machine.Pin) *NeoPixel {
15	return &NeoPixel{
16		power: power,
17		device: ws2812.NewWS2812(data),
18	}
19}
20
21func (p *NeoPixel) Enable() error {
22	p.device.Pin.Configure(machine.PinConfig{machine.PinOutput})
23	p.power.Configure(machine.PinConfig{machine.PinOutput})
24	p.power.High()
25	return nil
26}
27
28func (p *NeoPixel) Disable() {
29	p.power.Low()
30}
31
32func (p *NeoPixel) SetColor(c color.Color) {
33	// sigh. https://github.com/tinygo-org/drivers/issues/837
34	rgba := color.RGBAModel.Convert(c).(color.RGBA)
35	p.device.WriteColors([]color.RGBA{rgba})
36}
37