Scan MAC addresses, securely send them to an auxiliar RPI or Vocore2, learn about the brands and similar information of the devices around you, check if there's more than just mobile phones and personal devices (such as survilliance cams and similar), save the information in a JSON inside a sdcard and check the state of the leds for learning if there are MACs around, if they are industrial or regular and if there are known vulnerabilities of those. Also check SDA and SCL for I2C debugging if necessary. Also record where are you at the moment of the scanning with a GPS (ultimate).