Next is the complete schematic diagram of a little Arduino board for your everyday projects. Use the Atmega328P chip, with Arduino bootloader loaded by you, as the brain of this economical circuit.

I used a breadboard to connect 82S129 pins to Arduino. Please follow this schematic: Arduino pins -----> 82S129 pin (function) +5v 16 Vcc GND 8 GND Digital 2 5 A0 Digital 3 6 A1 Digital 4 7 A2 ...