Climate Clock

This project is titled “Climate Monitoring Clock”. The goal of this project was to design a device that would monitor temperature and humidity at an outdoor location and an indoor location. The outdoor device would then transmit the data readings to the indoor device which would store them and display them on a screen. The indoor device would also connect with a Real-Time Clock (RTC) chip to maintain an accurate time and date. The time and date would also be available for display on the screen. Lastly, in order to preserve configuration variables across power-on resets, the configuration variables would be written to an EEPROM chip. The final design accomplished all these tasks and connected to two devices with a wire. Future improvements include connecting the outdoor and indoor devices using a wireless transmitter and receiver.

Transmitter Schematic and Picture:

Receiver Schematic and Picture:

Grading: 45 points

  1. Scope -- Using humidity and temperature sensors, EEPROM, UART, LCD character display, serial data devices, SPI bus, toggle buttons, multiple control displays, RTC chip
  2. Functionality -- Good, functionality demonstrated to class
  3. Hardware complexity - high, multiple devices interfacing with each other, power backup included.
  4. Software complexity - high, some challenges interfacing the multiple components.
  5. Presentation - good, but some functionality was not demonstrated
  6. Practicality / usefulness / fun factor - excellent