Use I2C to communicate between two Arduino Nano 33 BLE Sense. Square a number at the other Arduino and send the result back.
See this tutorial for hardware and software set up. Everything is the same except that you need to replace the reader and writer code with ones found in this repo.
Based on the official Arduino tutorial: Connecting two Nano 33 BLE Sense boards trough I2C. Adapted to square a number at the other Arduino and send the result back.