This project is cheap simple and fun. Only costs about $14.00 if you already have a photon module!
Full library(SegmentDisplay) on build IDE. No programming!
Let us know if there is a project you would like to see an article on.
Full article on Hackster.io here:
https://www.hackster.io/ControlEverything/particle-photon-rssi-reading-on-3-character-display-f452e6