For X students:
X/2 Arduino Nicla with soldered pins
X/2 Arduino MKR Connector Carrier (Grove compatible),
https://store.arduino.cc/products/arduino-mkr-connector-carrier-grove-compatible?srsltid=AfmBOorBkBgiOCQKIHS8M-rOclbrj2M-5iNj0Lq7MpXKdSI0jgtKrPY2
X/2 Grove LoRa module- Long Range 868MHz,
https://wiki.seeedstudio.com/Grove_LoRa_Radio/
X/2 JZK 80 x 80 x 25 mm DC 5 V USB Mini Fan, similar to:
https://www.amazon.it/dp/B0CTTBXVY8?ref=ppx_yo2ov_dt_b_fed_asin_title
X/2 Usb to Usb-C cables:
X/2 USB-C power banks for demos