The dirt cheap CH32V003 RISC-V microcontroller for example can be a LoRA transmitter able to talk to a gateway at a range of hundreds of metres with the CH32 and 2.5km with the ESP32.

Posted in Software Hacks, Wireless Hacks Tagged emergency communications, ESP32, LoRa, mesh network, rescue communications, signal ← Developing Retro Games For Conference Badges With Kate Morris ...

ESP32 Bus Pirate is an open-source firmware inspired by the original Bus Pirate from Dangerous Prototypes, which turns ...