Using RS232 Port on RAK2749

LPWAN Industrial Gateways / Concentrators RAK7249
1

Hi,

Can the RS232 Port on the RAK2749 be used to connect another device and establish a serial communication with the Gateway ?
Does Rak provide documentation on how to use the RS232 Port on the Gateway.

Thanks

2

Hi，

For RAK7249,UART0 is a debug port.But you can use UART2 for communicating with another device.

RAK7249
RAK7249.jpg1350×759 361 KB

3

Unlike the debug serial port on the external connector, those UART2 signals are presumably 3v3 signals not RS232 signals - ie, they differ in both voltage and inversion from RS232, and would need an inverting level translator to talk to something that actually uses RS232.