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60 lines
1.0 KiB
60 lines
1.0 KiB
package main
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import (
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"time"
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"os"
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"fmt"
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"github.com/jgarff/rpi_ws281x/golang/ws2811"
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)
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const (
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pin = 18
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count = 16
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brightness = 255
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)
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func main() {
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defer ws2811.Fini()
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err := ws2811.Init(pin, count, brightness)
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if err != nil {
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fmt.Println(err)
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} else {
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fmt.Println("Press Ctr-C to quit.")
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fmt.Println("Creating blue color wipe")
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err = colorWipe(uint32(0x000020))
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if err != nil {
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fmt.Println("Error during wipe " + err.Error())
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os.Exit(-1)
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}
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fmt.Println("Creating red color wipe")
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err = colorWipe(uint32(0x002000))
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if err != nil {
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fmt.Println("Error during wipe " + err.Error())
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os.Exit(-1)
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}
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fmt.Println("Creating green color wipe")
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err = colorWipe(uint32(0x200000))
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if err != nil {
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fmt.Println("Error during wipe " + err.Error())
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os.Exit(-1)
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}
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}
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}
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func colorWipe(color uint32) error {
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for i := 0; i < count; i++ {
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ws2811.SetLed(i, color)
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err := ws2811.Render()
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if err != nil {
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ws2811.Clear()
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return err
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}
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time.Sleep(50 * time.Millisecond)
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}
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return nil
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} |