Need to send data from a Raspberry Pi–based project located beyond your home’s Wi-Fi network range? Sure, you could use a Wi-Fi extender, or a very long Ethernet cable (up to 100m), but there are other, more reliable solutions that we’ll be exploring here.

LoRa is a long-range radio system that can transmit small packets of data at low bit rates (300bps to 50kbps) — ideal for IoT sensors and the like. Its biggest advantage is its resilience to noise and interference, enabling a range of up to 15km (9 miles) in rural areas. LoRa nodes can send data to each other, or you can use a LoRaWAN gateway to receive multiple channels — either an existing one on, say, The Things Network, or your own.

For (much) higher data rates, there’s 4G cellular. We take a look at a couple of add-on solutions here, along with a separate GPS module for ultra-accurate location- and time-stamping.

...read more at raspberrypi.com