You can sniff for WiFi networks in CircuitPython on ESP-32 S2 with just a tiny bit of code! To learn about CircuitPython: https://circuitpython.org
https://github.com/todbot/circuitpython-tricks#scan-for-wifi-networks-sorted-by-signal-strength-esp32-s2
Visit the Adafruit shop online - http://www.adafruit.com
LIVE CHAT IS HERE! http://adafru.it/discord
Adafruit on Instagram: https://www.instagram.com/adafruit
Subscribe to Adafruit on YouTube: http://adafru.it/subscribe