Schematic

1
1
2
2
3
3
4
4
D D
C C
B B
A A
D1
D2
R2 R4
R1
R3C1
C2
+
1
-
2
Fire Sensor
U2
1IN-
2
1IN+
3
GND
4
VCC
8
OUT2
7
2IN-
6
2IN+
5
OUT1
1
U1
LM393
1
2
3
P1
VCC
GND
GND
GND
VCC
1
23
10K
POT

Summary of content (1 pages)