A group of two UNC Charlotte undergraduate students dedicate their efforts to innovating on existing temperature measurement systems. While there are various means of finding out the average temperature in any given area, few options exist for knowing the exact temperature inside your own home or business when you are away. Therefore, we decided to embark on a solution that would eliminate this ambiguity.
Our project utilizes two Particle Photon micro-controllers, an Adafruit SSD1306 OLED display, and a temperature sensor. The display is wired to one Photon. In turn, the library which powers the display runs on said Photon. The other Photon is wired to the temperature sensor, and the library powering the temperature sensor runs on this second photon. In addition, two "in-house" codes were developed - one to handle the temperature data being sent from the the temperature sensor, and the second to create a confirmation signal. This system works on a 30 second interval, so every 30 seconds the photon reads the temperature sensor and sends that value over to the OLED display. Upon receiving this signal, the secondary photon sends a signal back to the original photon to flash the on-board LED. Ultimately, the Photons are connected to the cloud. Therefore, the primary photon publishes the temperature data to the cloud, where it is subsequently graphed for analysis.