Auto boot via USB

Raspberry Pi Cellular IoT shield works fine on UART but I want to use over USB as I have another HAT I want to use for UART (

How do I have the boot automatically when the pi boots up connected via USB? I can get it working on ttyUSB3 when I press the ‘boot’ button button but not when the pi boots.


Hi @ben.boughton,

On boot, the Rpi turns on the module of the shield first. once the module is ready it establishes the connection.
If you connect it via USB only, the Rpi cannot turn on the module. Here as a solution, you can connect the required pins of the Shield to the RPi using jumper.

Thanks @ensar that works great. I did figure this one out eventually. See my picture in this other post.