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LoRaWAN — Long-Range IoT

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LoRaWAN: 10km range on a coin cell

LoRaWAN is designed for one specific job: send a small sensor reading (temperature, GPS, water level) up to 10km on a battery that lasts years. It achieves this with Chirp Spread Spectrum modulation — spreading the signal across a wide frequency band makes it recoverable even when signal strength is 20dB below the noise floor.

Trade-off: raw data rate is 250bps–5.5kbps. LoRaWAN is for small payloads sent infrequently.

Packets in motion — click to inspect:

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