BackgroundThe Bus In Time app is first born at a hackathon of an open data summit and challenge in Bandung (BOSCHA). We want to make a simple app that use IoT to solve the transportation problem. So, we choose Bluetooth Low Energy (BLE) because that time it’s one of the hottest (Internet of Things) IoT devices. Bluetooth Low Energy BeaconBluetooth Low Energy (BLE) or iBeacon gives some advantages