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BLE is a radio technology for connecting small, battery-powered devices over short distances – typically up to 100 metres. A driver ID fob in a pocket broadcasts a BLE signal; the vehicle tracker picks it up and logs which driver is at the wheel. That is a typical BLE use case.
BLE consumes a fraction of the power of classic Bluetooth, making it viable for devices that run for years on a coin cell. In IoT and telematics deployments it serves three main roles:
- Beacon broadcasting – a small tag broadcasts its ID; a reader detects proximity and logs it
- Sensor pairing – a temperature probe pairs wirelessly with a gateway or vehicle tracker
- Driver identification – a keyfob assigned to a driver is detected when they enter the vehicle
BLE version matters for range and connection stability. BLE 5.0 and above offer up to 400 m in open space and faster data transfer than earlier versions.
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