A recent project of mine uses RAK3172 in IoT. It is used to read sensors and send data to the gateway.
Supported communication standards are i2c, one-wire, 4-20mA, 0-10V, RS485.
I also built a Modbus library, which will make it easy to use node to read variables with the industry standard Modbus RTU interface.
The board is housed in an IP65 waterproof housing.
I share it here, you can easily download the Modbus library and build it with me.
Let me know if you need the hardware, I’ll try to send it to you at the cost I lack to produce it.
I’m also happy when someone wants to discuss IoT projects.
Whatsapp: +84969809444
2 Likes
Hello @Nam
Great project, I love it and your documentation for it is well written.
I even more like that you use our RUI3 
3 Likes
Very nice project and documentation is so well done 