easyUART | An easy to use library to talk to a UART device under linux

easyUART is a C library typically used in Internet of Things (IoT) applications. easyUART has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This library was designed to connect with a UART device under /dev/ttyUSB0 and exchange data. In theory, all you have to do is download it, configure your UART device in app.h , and run make. The program uses Linux signals to receive data so you are free to do whatever you like inside your main while loop. It is non-blocking. Incoming data is read until \r is received, upon which the whole string gets added to an incoming buffer. From there, the main while loop will pick one Item in this buffer process and remove. The same goes for outgoing. To send a command to the UART you call add_to_outgoing("Command"). This will add the command to an outgoing buffer. The main while loop will now, on each iteration, pick one outgong item and send it to the UART. The code will send #PNG to the UART device every 10 seconds, and expects the UART device to send back #POK as a reply. If there is no reply received, the app will notice there is a communication issue. Of course you may take this part of the code out or adapt it to your personal needs.