Hi, I try to make communicate mangOH Red with a external microcontroller.
I want the external microcontroller to power mangOH Red. Then I would like to make communicate my external microcontroller with LTE-M sierra chip over the TX and RX pins on raspberry header with AT commands.
FYI : When I use COM port of mangOH Red to use AT commands, I get !MAPUART:17,16 for AT!MAPUART?
I cannot, so I wonder if it possible to make communicate an external microcontroller with LTE-M sierra chip with the AT commands over RX TX pins of raspberry header of mangOH Red ???
If anyone has an hint, I would appreciate