the LoRaWAN network protocol allows data to be transmitted over long distances (up to 15km) saving resources. However, the transmission rate is only in the order of a byte and you have to be in a LoRaWAN network. But thanks to a globally active community, this presents few problems.
If you want to set up a LoRaWAN support for your Raspberry Pi Picoyou’re in luck: Sandeep Mistry, the author of the Arduino LoRa library, has added support for the Raspberry Pi Pico. To make your microcontroller compatible with LoRaWAN, you first need a LoRa radio module that you can connect to your Raspberry Pi Pico. Once the microcontroller is configured, nothing prevents you from sending data.