Thermometer
NOTE: The Polish version of this article is also available.
Introduction
This is Yet Another Thermometer Design. It has never been built and will probably never be, but I hate throwing away good projects. :P
Hardware
- AT89C2051 microcontroller
- 11.0592MHz clock
- 2KB of EEPROM (ST24C16)
- RS232 link (MAX232)
- Real tiem clock (MAX1338C) with battery backup (CR2032)
- Some I2C temperature sensors
- HD44780 2x20 LCD
Software
- Multiple sensors
- Temperature alarm
- Alarm clock
- No controls (buttons) at all - controlled with computer only
- Recording mode (saving temperature at given intervals)