Good Morning All,
I have a project that is based on a RPI3 running Windows IoT. The goal has always been to use the Cellular Module as a stand-alone modem using AT commands. At the moment, I am by-passing the RPI and have connected straight to my PC via usb. I am powering the unit via the provided 2.1A 5v supply and using Termite as a terminal program.
The issue I have is that no matter what I do, I cannot get ANY feed back from the unit. I have two of them, and it remains consistent across both units. I have done nothing in terms of modifications. The unit has power, and a very inviting "All is well" green led that shines proudly. However, that said, it refuses to do ANYTHING from there. The PC does recognize the serial device at least.
What am I doing wrong here? This must be something stupid.on my behalf. I would have expected that power cycling the modem card would have at least output something. I have also attempted AT, AT+, ATE=1, all of which resulted in crickets.
I need help desperately as this project will be part of a next round funding effort on Friday. If I can't communicate on the AT&T network, we are dead in the water.
I appreciate any and all help!