Beacon package for Go

Example: Scanning for beacons

This package currently only works with a BLE112 to scan

package main

import (
  "fmt"
  "github.com/RadiusNetworks/go-beacon"
  "github.com/RadiusNetworks/go-beacon/ble112"
  "time"
)


func main() {
  device := ble112.Devices()[0]
  scanner := beacon.NewScanner(device, beacon.DefaultParsers())
  data := make(chan beacon.Slice)
  done := make(chan bool)
  go scanner.Scan(time.Second, data, done)

  for {
    beacons := <- data
    for _, beacon := range beacons {
      fmt.Printf("%v\n", beacon)
    }
    fmt.Printf("\n")
  }
}

http_beacon

http_beacon listens for an HTTP POST and broadcasts as the specified beacon. Out of the box, the port is 9999. The format of the JSON (so far) is:

{
  "beacon_type": "altbeacon",
  "identifiers": {
    "major": 1,
    "minor": 2,
    "uuid": "BCDB5AEB-F4E9-4600-B90F-70A2BE2F88C3"
  }
}

If you were to put the above into a altbeacon.json file, you could send this to a running http_beacon using the following curl command:

curl -X 'POST' -H 'Content-Type:application/json' -d @altbeacon.json 'http://<hostname>:9999/beacon'

In order to cross-compile http_beacon to run on a pi, use the following build commands:

sudo env GOOS=linux GOARCH=arm GOPATH=<path to your Go workspace> go get -v github.com/radiusnetworks/go-beacon/http_beacon
env GOOS=linux GOARCH=arm go build -v github.com/radiusnetworks/go-beacon/http_beacon

The go get command gets the necessary dependencies for the specified OS and architecture. The go build command builds the executable and deposits it in the current working directory. You can then copy this file onto your pi and run it using sudo:

sudo ./http_beacon