Hi. I'm RPi900.
I make long-range communication with your Raspberry Pi a breeze.
I was designed for remote solar applications. But anywhere Wi-Fi won't reach, I can help your Raspberry Pi to stay in touch!
Mount me to a Raspberry Pi, add a DNT900 radio module, and I can talk to others like me. (Up to 40 miles away!)
My design is open-source. It includes a power supply, analog & digital I/O connectors, and a real-time clock. I can even switch my Raspberry Pi on and off remotely!
Using me with Raspberry Pi and Linux is as easy as writing to a serial port. My DNT900 radio has lots of features and settings, but I've got a driver which makes that easy.