สร้าง Line Beacon จาก Raspberry Pi


https://medium.com/odds-team/%E0%B8%AA%E0%B8%A3%E0%B9%89%E0%B8%B2%E0%B8%87-line-beacon-%E0%B8%88%E0%B8%B2%E0%B8%81-raspberry-pi-450df0409d17