mirror of
https://github.com/kidoman/embd
synced 2024-12-22 21:00:05 +01:00
779096e668
this will allow people to use glog options (like -v=3) to increase verbosity of the log output
44 lines
616 B
Go
44 lines
616 B
Go
// +build ignore
|
|
|
|
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"math/rand"
|
|
"os"
|
|
"os/signal"
|
|
|
|
"github.com/kidoman/embd"
|
|
"github.com/kidoman/embd/controller/mcp4725"
|
|
)
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
|
|
if err := embd.InitI2C(); err != nil {
|
|
panic(err)
|
|
}
|
|
defer embd.CloseI2C()
|
|
|
|
bus := embd.NewI2CBus(1)
|
|
|
|
dac := mcp4725.New(bus, 0x62)
|
|
defer dac.Close()
|
|
|
|
stop := make(chan os.Signal, 1)
|
|
signal.Notify(stop, os.Interrupt, os.Kill)
|
|
|
|
for {
|
|
select {
|
|
case <-stop:
|
|
return
|
|
default:
|
|
voltage := rand.Intn(4096)
|
|
if err := dac.SetVoltage(voltage); err != nil {
|
|
fmt.Printf("mcp4725: %v\n", err)
|
|
}
|
|
}
|
|
}
|
|
}
|