Automatic water level controller

This is an electronic gadget that controls the switching on/off of the pump motor automatically on the basis of water level in the water reservoir. In Atmel ATMega8 model, a low poer 8-bit RISC microcontroller is used which carries superlative performance. Main features of this device are 8K bytes of in-system self-programmable flash, 512 bytes EEPROM, 16 bit timer/counter, 6-channel ADC in PDIP package, internal interrupt sources, programmable watchdog timer with separate on-chip oscillator and 23 programmable I/O lines.