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embd/samples/servoblaster.go
Kunal Powar 779096e668 samples: enable flag parsing
this will allow people to use glog options (like -v=3) to increase
verbosity of the log output
2014-04-05 01:43:16 +05:30

55 lines
743 B
Go

// +build ignore
package main
import (
"flag"
"os"
"os/signal"
"time"
"github.com/kidoman/embd/controller/servoblaster"
"github.com/kidoman/embd/motion/servo"
)
func main() {
flag.Parse()
sb := servoblaster.New()
defer sb.Close()
pwm := sb.Channel(0)
servo := servo.New(pwm)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, os.Kill)
turnTimer := time.Tick(500 * time.Millisecond)
left := true
servo.SetAngle(90)
defer func() {
servo.SetAngle(90)
}()
for {
select {
case <-turnTimer:
left = !left
var err error
switch left {
case true:
err = servo.SetAngle(45)
case false:
err = servo.SetAngle(135)
}
if err != nil {
panic(err)
}
case <-c:
return
}
}
}