FYP 2: Week 2

INPUT

PROXIMITY IR LED CIRCUIT

A proximity IR LED sensor is a sensor able to detect the presence of nearby objects without any physical contact. In this project i use the proximity to detect the person come in and come out.

List Component use to make Proximity Circuit

RESISTOR 

Quantity	References	Value (Ω)	Order Code
1	R1	3k3	M100K
4	R2 R6 R8 R12	100k	M100K
1	R3	1k4	M100K
1	R4	47R	M100K
1	R5	47R	-
1	R7	10k	M100K
2	R9 R11	1k	-
1	R10	100r	M100K

CAPACITOR

Quantity	References	Value (Ω)	Order Code
2	C1 C3	1u	Farnell 499-717
1	C2	100n
1	C3	1oou	Maplin VN60Q

INTEGRATED CIRCUITS

Quantity	References	Code	Order Code
2	U1 U2	555	-

TRANSISTOR

Quantity	References	Code	Order Code
3	Q1 Q2 Q4	2N3904	-
1	Q3	2N3905	-

DIODES

Quantity	References	Code	Order Code
2	D1 D2	1N4007	-

MISCELLANEOUS

Quantity	References	Code	Order Code
3	J1 J2 J4	CONN-SIL	-
2	J3 J5	-	-

Circuit Diagram for Proximity Circuit