forked from tinygo-org/bluetooth
/
main.go
53 lines (46 loc) · 1.17 KB
/
main.go
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// This example advertises for 5 minutes after
// - boot
// - disconnect
// and then stops advertising.
package main
import (
"time"
"tinygo.org/x/bluetooth"
)
var adapter = bluetooth.DefaultAdapter
var advUntil = time.Now().Add(5 * time.Minute)
var advState = true
func main() {
must("enable BLE stack", adapter.Enable())
adv := adapter.DefaultAdvertisement()
must("config adv", adv.Configure(bluetooth.AdvertisementOptions{
LocalName: "Go Bluetooth",
}))
adapter.SetConnectHandler(func(device bluetooth.Addresser, connected bool) {
if connected {
println("connected, not advertising...")
advState = false
} else {
println("disconnected, advertising...")
advState = true
advUntil = time.Now().Add(5 * time.Minute)
}
})
must("start adv", adv.Start())
println("advertising...")
address, _ := adapter.Address()
for {
if advState && time.Now().After(advUntil) {
println("timeout, not advertising...")
advState = false
must("stop adv", adv.Stop())
}
println("Go Bluetooth /", address.MAC.String())
time.Sleep(time.Second)
}
}
func must(action string, err error) {
if err != nil {
panic("failed to " + action + ": " + err.Error())
}
}