With PJON you build networks of devices for free with no need of a cloud service or a centralised platform you don’t fully control.

HC-12 library for Arduino

Radiofrequency communication with Arduino Nano and HC-12, written in C

An Arduino-based GPS tracking solution. Uses one Arduino as the GPS tracker and the other to display the GPS location.

📱 A text only portable communication device designed for an apocolypse.

CRC8 for HC-12 connect to Arduino, Espruino and ESP-8266

Arduino library for the HC12 RF module

In the developing nations, road accidents are the significant reasons for death. For instance, if we look at the main 10 risky roads in the world, we can see that every one of them is a mountainous road. In the mountain roads, there will be tight bends and the roads will be restricted. In these sorts of circumstances, the driver of a vehicle cannot see vehicles approaching from the inverse side. A great many individuals lose their lives every year due to this issue. Since we are discuss-ing mountain roads, here the opposite side may lead to a precipice. The answer to this issue is cautioning the driver about the vehicle originating from the inverse side. This objective is achieved by building a module that will detect vehicle position and speed and aware of the driv-er in the vehicle of the incoming cars. These goals are achieved using fast and reliable V2V (Ve-hicle to Vehicle) communication. The modules in each respective car will exchange the data which will help to prevent mishaps, especially in mountainous curves.

The Soldier Health Monitoring and Position Tracking System allows the military personnel to track the current GPS position of a soldier and also checks the health status including body temperature and heartbeat of a soldier.

433MHz operated On Air sign for a music studio