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