mirror of
https://github.com/tinygo-org/drivers.git
synced 2026-08-13 11:23:40 +00:00
Ayke van Laethem
32 lines
630 B
Go
32 lines
630 B
Go
package ws2812
|
|
|
|
import (
|
|
"machine"
|
|
)
|
|
|
|
type WS2812 struct {
|
|
Pin machine.GPIO
|
|
}
|
|
|
|
func New(pin machine.GPIO) WS2812 {
|
|
return WS2812{pin}
|
|
}
|
|
|
|
// Write the raw bitstring out using the WS2812 protocol.
|
|
func (p WS2812) Write(buf []byte) {
|
|
for _, c := range buf {
|
|
p.WriteByte(c)
|
|
}
|
|
}
|
|
|
|
// Write the given color slice out using the WS2812 protocol.
|
|
// Colors are specified in RGB format, and are send out in the common GRB
|
|
// format.
|
|
func (p WS2812) WriteColors(buf []uint32) {
|
|
for _, color := range buf {
|
|
p.WriteByte(byte(color >> 8)) // green
|
|
p.WriteByte(byte(color >> 16)) // red
|
|
p.WriteByte(byte(color >> 0)) // blue
|
|
}
|
|
}
|