I participated in a hackathon organized by SigFox and the city of San Francisco. The theme of hackathon was to solve challenges encountered by the city using Sigfox modules.

My team built a disaster response module that can transmit information about the number of people in a room. I implemented the firmware that transmits SOS messages using the Sigfox module. The video below demonstrates the proof of concepts (The static noise at the beginning is caused by the message transmission).