Please share this link with your professor, as it explains why what you have been assigned to do is not permitted.
No doubt your professors will agree that misuse of online services is not what their university means to teach.
In contrast, the $150-400 purchase cost of a proper LoRaWAN gateway based on a proper LoRaWAN concentrator card, and its placement atop one of the high rise buildings on your campus would be a wonderful resource for both the campus and the Things Network.