AT commands help for WR21 modem

I’m trying to issue typical AT commands that I’ve used on other modems through the Serial Port but I keep getting errors. I saw that DIGI has custom AT commands how do I find them?

Example of commands not working




Any help?


the AT commands used wjen connected to serial interface are the commands handled by the router there is a section on AT commands in the user guide

page 111

if you are trying to use at commands to talk to the cellular module that is a litle more complex as you have to stop the router from usinging it before you can get to the module


Old thread, but I need to know HOW I get to the module to send AT commands to it. Haven’t been able to find any information regarding that…