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led-cycle.go
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led-cycle.go
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package main
import (
"os"
"os/signal"
"time"
"fmt"
"github.com/ddrager/go-pi-blaster"
)
const redPin = 17
const greenPin = 22
const bluePin = 24
const jump = 5
var a []int64
var b piblaster.Blaster
func setRGB(red int64, green int64, blue int64) {
b.Apply(redPin, float64(red)/255.0)
b.Apply(greenPin, float64(green)/255.0)
b.Apply(bluePin, float64(blue)/255.0)
}
func main() {
fmt.Printf("Running\n")
var red int64 = 255
var green int64 = 0
var blue int64 = 0
a := []int64{redPin, greenPin, bluePin}
b.Start(a)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
// main loop
go func() {
timer := time.Tick(time.Millisecond * 1)
for _ = range timer {
if red >= 255 && blue <= 0 && green < 255 {
green = green + jump
} else if green >= 255 && blue <= 0 && red > 0 {
red = red - jump
} else if red <= 0 && green >= 255 && blue < 255 {
blue = blue + jump
} else if red <= 0 && blue >= 255 && green > 0 {
green = green - jump
} else if green <= 0 && blue >= 255 && red < 255 {
red = red + jump
} else if red >= 255 && green <= 0 && blue > 0 {
blue = blue - jump
}
setRGB(red, green, blue)
//fmt.Printf("Red: %d, Green: %d, Blue: %d\n", red, green, blue)
}
}()
//time.Sleep(time.Millisecond * 15000)
for sig := range c {
fmt.Printf("captured %v, exiting..", sig)
//b.DumpCurrent();
b.Reset();
os.Exit(1)
}
}