smoke detector design

Ongoing

STD smoke detector design

Arduino

Display_Module

Sensor_Module

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Update time： 2022-02-22 15:15:57

Creation time： 2022-02-19 18:05:57

Description

for this project i used:

Arduino UNO

Smoke Detector

Power Supply.

In this Smoke Detector Circuit with Arduino, I used a MQ2 Gas Sensor to detect preset smoke in the air. A 16x2 LCD is used for displaying the PPM value of Smoke. And an LM358 IC for converting smoke sensor output into digital form (this function is optional). A buzzer is placed as an alarm which gets triggered when smoke level goes beyond 1000 PPM.

Attached below is the program for the circuit and the gerber file

Design Drawing

schematic diagram

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Schematics for smoke detector
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PCB

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pcb MQ2 Smoke Detector Arduino Shield
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	19-217-R6C-AL1M2VY-3T	D1,D2	SEEED-LED-0603	2
2	ARDUINO_R3_SHIELD	J1	UNO_R3_SHIELD	1
3	P125-1103A0BS116A1	J2	H3-2.54	1
4	Smoke Module	J3	H4-2.54	1
5	10k	R1,R3	TRIM_POT_PTH	2
6	1k	R2,R4,R5,R7	R1206	4
7	10k	R6,R8	R1206	2
8	BUZZER	SG1	BUZZER-12MM	1
9	LCD-16X2	U1	LCD-16X2	1
10	LM358	U2	DIP8	1
11	Smoke_SENSOR	U3	MQ-3	1
12	BC547	U4	SEEED-SOT-23	1