Arduino circuit

Motor controller (Eagle board layout)

Designed to be a “standalone”, no Arduino board etc… All that remains is the ATMEGA8, the crystal oscillator (and related caps), and 5V regulated power supply. The rest is for the sensor and motor relay.

Note: no reset switch either… to reset you touch a screwdriver to the left-side lead of the 10K resistor (which leads to the RESET pin) and the trace right next to it (GND)