In that case the wiring has to be rather short :P Ser=serial.Serial(port='/dev/ttyUSB2', baudrate=115200, timeout=1)Ĭorrect me if I am wrong…it sounds like the USB lanes of the mPCIe are used, and that the Jetson itself sees this as a serial UART. I tried all of ‘\r’, ‘\r\n’ and ‘\n’ as new line at the end of the command but non of them are working. My feeling is that the carriage return is different in TX2 environment. I also tried exactly same code on other system (Ubuntu 14 on my laptop and Ubuntu 16.04 on another processor iMX6) So I can make sure that the module is working, and the serial port settings are correct. I tried Minicom and I can type AT commands on modem and get the respond from LTE module on the same port correctly. In many cases it gets nothing, sometime it gets the respond but this cases are rare. The issue is that my simple code which writes an AT command on serial port using python pyserial library and listens to the return doesn’t work. I installed the driver and I can see now ttyUSB0 to 4 on dev directory. I’m trying to interface a SIM7100A LTE module from SIMCOM.
