Exposure Notification Scanning on Raspberry Pi

main.go

package main

import (
	"fmt"
	"log"

	"github.com/paypal/gatt"
	"github.com/paypal/gatt/examples/option"
)

func onStateChanged(device gatt.Device, s gatt.State) {
	switch s {
	case gatt.StatePoweredOn:
		fmt.Println("Scanning for Rolling Proximity Identifiers")
		device.Scan([]gatt.UUID{}, false)
		return
	default:
		device.StopScanning()
	}
}

func onPeripheralDiscovered(p gatt.Peripheral, a *gatt.Advertisement, rssi int) {
        // fmt.Printf("%+v\n", a)
	if(len(a.Services) > 0){
		if(gatt.UUID.Equal(a.Services[0], gatt.MustParseUUID("fd6f"))){
			if(len(a.ServiceData) > 0){
				log.Printf("%x\n", a.ServiceData[0].Data)
			}
		}
	}
}


func main() {
	device, err := gatt.NewDevice(option.DefaultClientOptions...)
	if err != nil {
		log.Fatalf("Failed to open device, err: %s\n", err)
		return
	}
	device.Handle(gatt.PeripheralDiscovered(onPeripheralDiscovered))
	device.Init(onStateChanged)
	select {}
}

patch adv.go in paypal gatt

		case typeServiceData16:
			var s ServiceData
			s.UUID = UUID{d[:2]}
			s.Data = d[2:]
			a.ServiceData = append(a.ServiceData, s)