43 lines
637 B
Go
43 lines
637 B
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"image/color"
|
||
|
|
"machine"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"tinygo.org/x/drivers/ws2812"
|
||
|
|
)
|
||
|
|
|
||
|
|
const (
|
||
|
|
NumberOfLEDs = 2
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
red = color.RGBA{255, 0, 0, 255}
|
||
|
|
green = color.RGBA{0, 255, 0, 255}
|
||
|
|
)
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
// WS2812 LEDs are on pin P1_11
|
||
|
|
neo := machine.P1_11
|
||
|
|
neo.Configure(machine.PinConfig{Mode: machine.PinOutput})
|
||
|
|
|
||
|
|
leds := ws2812.New(neo)
|
||
|
|
ledColors := make([]color.RGBA, NumberOfLEDs)
|
||
|
|
|
||
|
|
rg := false
|
||
|
|
for {
|
||
|
|
for i := 0; i < NumberOfLEDs; i++ {
|
||
|
|
if rg {
|
||
|
|
ledColors[i] = red
|
||
|
|
} else {
|
||
|
|
ledColors[i] = green
|
||
|
|
}
|
||
|
|
rg = !rg
|
||
|
|
}
|
||
|
|
leds.WriteColors(ledColors)
|
||
|
|
rg = !rg
|
||
|
|
time.Sleep(time.Millisecond * 300)
|
||
|
|
}
|
||
|
|
}
|