Digital thermometer

Simple Digital Thermometer (using AVR-lcdLib)

A simple digital thermometer with character LCD display, intended as an example project showing how to use AVR-lcdLib.

Note however, that this project is not yet complete, namely the pcb is not yet completed. See Issues and/or Roadmap for more details.

• Features
• Tools
• License
• Building
  • Hardware
  • Software
• Issues
• Road Map

Features [blocked]

• Uses a LCD character display to show the current temperature in Celsius or Fahrenheit using AVR-lcdLib
• Uses TMP36 temperature sensor to provide +-2 degrees Celsius accuracy
• Has single toggle button to switch between Celsius and Fahrenheit (not yet implemented in firmware)

Tools [blocked]

This project wouldn't be possible without the following great open source tools:

• AVR-GCC, AVR-libc, and AVR-binutils which form the compiler toolchain that makes open source development for AVR microcontrollers possible.
• avrdude to do in system programming of the AVR microcontrollers
• Gnu Emacs, because how else would I enter text?

License [blocked]

Code licensed under (GPLv3. Please see the LICENSE file for full details.

Building [blocked]

Hardware [blocked]

Currently, as mentioned above and in Issues, the PCB is not yet developed, though a circuit diagram is provided. It can be opened with kicad and is located within the 'DigitalThermometer' folder.

Software <a name="software)

Issues [blocked]

Currently, the pcb has not been completed, but the hardware design has been built on a breadboard and tested with the current code, which found both to be functioning.

Additionally, the firmware does not currently support having a button to toggle between displaying the temperature in Celsius or in Fahrenheit.

Road Map [blocked]

• Design a PCB
• Add support for Celsius/Fahrenheit toggle button in firmware