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embd/samples/us020.go

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// +build ignore
package main
import (
"fmt"
"time"
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"github.com/kidoman/embd"
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"github.com/kidoman/embd/sensor/us020"
)
func main() {
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if err := embd.InitGPIO(); err != nil {
panic(err)
}
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defer embd.CloseGPIO()
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echoPin, err := embd.NewDigitalPin(10)
if err != nil {
panic(err)
}
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triggerPin, err := embd.NewDigitalPin(9)
if err != nil {
panic(err)
}
rf := us020.New(echoPin, triggerPin, nil)
defer rf.Close()
for {
distance, err := rf.Distance()
if err != nil {
panic(err)
}
fmt.Printf("Distance is %v\n", distance)
time.Sleep(500 * time.Millisecond)
}
}