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AT commands help for WR21 modem

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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?
asked Jun 29, 2017 in Digi TransPort by mark.fontanella New to the Community (1 point)

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1 Answer

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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

answered Jun 30, 2017 by James.Wilson Veteran of the Digi Community (1,227 points)
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...