Automatic door-lock/unlock
CX-9 /2007 Version 1.0
Page 16
Appendix-B: Shopping list
Resistor
(normal ¼ watt)
R1
56 Ω /Ohm
R2
1000 Ω/ohm (1K)
Diode
(1A)
D1
1N4001
D2
1N4001
Capacitor
(Don’t go for 16V, unless you can’t get different)
C1
2200 µF/ 25V
C2
1000 µF/ 25V
C3
100 µF/ 25V
Relay
(many relay can have range which is good as well e.g. 6V – 30V)
A
12V – DPDT Relay
(Double Pole, Double Throw relay)
B
12V – SPDT Relay
(Single Pole, Double Throw relay)
C
12V – SPDT Relay
(Single Pole, Double Throw relay)
Wire
(0.75 mm
2
/ 18 Gauge) – Available in any good auto shop
Red
50cm/ 20 Inch
White
50cm/ 20 Inch
Grey
50cm/ 20 Inch
Black
50cm/ 20 inch
1 x plastic box large enough to hold the circuit
4 x IDC wire-tap or also called quick splice – Available at any good auto shop
Try to see whether they also sell one box of patience…. You might need it
