Vermes
Advanced Member level 4
This device is a four-point thermometer controlled by Atmega8. Program was written in Bascom.
Four sensors are used for measure temperature in four specific places:
- external temperature
- internal temperature
- temperature on radiators (that measurement can be used especially in winter to estimate the temperature in house)
- temperature in the fridge
Thermometer can be placed in any room in the house, for example in the kitchen. The simple program can be based on information which can be easily found on the Internet. All four sensors are connected to a single port.
Elements used:
- LCD
- 4x DS18B20
- Atmega8
- universal board
Tests:
Welcome display:
Checking how many sensors are connected:
Read ID of each sensor:
Temperature measurement:
Schematic:
Link to original thread (useful attachment) – 4x DS18b20 +LCD = Termometr