AVR based parking system - Simple Arduino Based Automated Parking Lot System - page 34

6 Optocoupler 4n35

Female pin to have easy connect between board and its inputs and out-
puts

7

8 Female pin to have easy connect between board and LCD

9 Lithium Battery

10 0.1 uf (104) Ceramic Disk Capacitor

11 CRISTAL QUARTZO 32,768KHZ

12 pins to supply power (5 or 17 v)

13-14 Five small push buttons

15 10 kΩ potentiometer

16
to19

11x10kΩ

20 1x10kΩ and 1x5.6kΩ