LoRa is a radio communication technique using license-free frequency bands, allowing small data transmissions over hundreds of meters or even kilometers. It's mostly known for LoRaWAN setups, requiring some managed infrastructure.

However, LoRa can also be used directly to transmit packets outside of LoRaWAN's IoT scope over LoRa's physical layer, LoRa PHY. This workshop will dive into the possibilities of low-cost, long-range LoRa PHY appliances based on cheap microcontroller based modems. As a project, we will develop a small LoRa-based chat system to broadcast messages.