Xbee3 module in bypass mode does not responds sometimes

XBee & XBee Gateway XBee - Cellular
, , ,
1

Hi,

I am working with Xbee3 module for cellular connectivity.
This module is configured in bypass mode to directly access u-blox sara r4 functionalities.

I am currently running tcp-socket operations to communicate with cloud.

My issue is, after configuring in bypass mode module responds to AT command sometime but sometime it doesn’t reply.

I used below commands ATE0(echo mode control), AT+CFUN=15(reboot), AT+UPMSR=0(power saving mode disabled) etc…

I further found that it happened only when previous network operation wad interrupted by means of either resetting MCU, crashing in between.

So what could be the issue ?

Please let me know if any more information is required from my end.

Any help would be appreciable.

Thanks

2

You should be using USB direct mode instead. Also make sure that the modem is on current firmware and be aware that the U-Blox module can take a while to come up before it will respond.