I’m trying to send AT commands via UART to the Cellular IoT hat but I’m not getting any responses (works fine if I power the hat with usb and use PC send commands).
Instead I have the hat powered through the Arduino, I have the 5v, 3.3v, and GND connected and pins 10 and 8 going to the Arduino RX/TX. I also read on another post that if powering the board externally the 5v should be connected to VBUS which I also tried and that did not work as well. Is there something else I’m missing/ any jumpers that need to be messed with?
Thanks!