Hi, great to hear that’s working for you.
I think it’s been a while since we updated our plan for this.
Basically, we’ve found that it’s hard for our firmware to safely manage the modem in a stable manner while also allowing AT commands to come through from the user program. Therefore, we need to take an all-or-nothing approach where our standard firmware won’t have this passthrough functionality but you could install a passthrough system firmware that gives you full control over the modem (but you have to manage the connection yourself).
We have this passthrough firmware available and can post it here soon.
We are also still planning on wrapping around various functionality in the ublox modem like signal strength and that will be coming soon in a firmware update. Keep an eye on the thread here for updates: Dash Firmware and Arduino Integration Updates - #7 by Reuben