Using a USB-C phone with Power Delivery is ideal here, as it allows the phone to be powered while also communicating with the Arduino over USB. The RemoteXY app is built specifically for this purpose.

4. Connect the ribbon cable to the Raspberry Pi Remember that ribbon cable you connected to the display controller? Now's a good time to connect the other end to the Raspberry Pi.

All you need is an Arduino IoT Cloud compatible device such as an Arduino Nano RP2040 Connect, an Arduino MKR WiFi 1010 or any ESP32/ESP8266 device to get started.

The Arduino IoT Bundle is the best way to start in the world of connected devices and features an Arduino Nano RP2040 Connect boards and more for €75.