Recording live data is something that you could use very often but most of the time we live to learn without it. What is the temperature in your attic over the day or what about the pool? Is the heat sink temperature acting as you thought it would even after operating for many hours? This ATmega8 Data Acquisition System is a powerful system that can do all of that. Firmware and computer software is available so that you can make your own.

"We can use a PC for connecting the homemade data acquisition hardware and produce the GUI for user friendly graphical presentation easily. One of the project that uses Visual Basic is the Data Acquisition & Logging System using AT89C51 made by Abbas Raza. In this project we use a PC for GUI display and the homemade data converter board using the AVR microcontroller. The circuit is built with the ATmega8. The chip has the onchip 10-bit resolution A/D Converter. Temperature sensor are connected to the 6 channels ADC input. You can connect up to 8 sensors with the ATmega8 TQFP package. The analog inputs are captured by sending a command from PC. The readings will display graphically or text data. The data can also be recorded as the database."