Here is a simple A/D converter project that uses an inexpensive Atmel Mega32 microprocessor.
The Atmel has eight 10-bit A/D channels and requires just a few auxiliary parts to communicate
analog readings to your PC over the serial port.
Channel 8 interface code is included.
Add sensors to your Simple A/D Interface or any A/D converter that can accept 0 to +5 Vdc inputs. This
project shows how to connect inexpensive sensors to measure position, light level, temperature, pressure and force.