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Component 

Label 

Value / Type / Label 

Quantity 

Resistors and 

Potentiometer 

R1 

5.1

 / (Green, Brown, Black, Silver) 

R2, R5, R6, R7, R9, R10 

1KΩ

 / (Brown, Black, Black, Brown) 

R3 

10KΩ / 103 potentiometer

 

1  

R4 

10kΩ / (Brown, Black, 

Black, Red) 

R8 

330Ω / (Orange, Orange, B

lack, Black) 

R11 

220kΩ / (Red, Red, 

Black, Orange) 

Light Emitting Diode 

D1, D2 

3mm Red LED 

Ceramic Capacitor 

C1, C2 

104 (100nF) 

Transistors 

Q1 

S9012 Epitaxial Silicon PNP 

Q2 

S9013 Epitaxial Silicon NPN 

IC Chip 

U1 

LM393 Dual Op Amplifier 

PCB 

---- 

Main PCB (Green) 

---- 

Sound IC PCB (Green) 

Modules 

MQ5 

MQ Sensor 

B1 

Buzzer 

Headers 

P1 

4-pin Breakable Male Header 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Bill of Materials: 

This package includes 23 pieces which are listed below along with their labels and quantity. 

 

Содержание AK-325

Страница 1: ...Methane Butane and LPG Detector D I Y Kit for detecting methane CH4 butane C4H10 and LPG in household or workplace environment using the MQ2 Part Number AK 325 Level Intermediate...

Страница 2: ...PG Detector for Arduino Analog Digital Methane Butane and LPG Detector for Raspberry Pi Digital This is a D I Y kit that requires soldering through hole components on the main single sided printed cir...

Страница 3: ...220k Red Red Black Orange 1 Light Emitting Diode D1 D2 3mm Red LED 2 Ceramic Capacitor C1 C2 104 100nF 2 Transistors Q1 S9012 Epitaxial Silicon PNP 1 Q2 S9013 Epitaxial Silicon NPN 1 IC Chip U1 LM393...

Страница 4: ...ING ALCOHOL IT WILL DAMAGE THE COMPONENTS 2 Open the package and verify the components refer to section 4 Bill of Materials on page 3 3 Lay down all the components on your workbench and proceed to the...

Страница 5: ...rid of any pre existing residue glue or dirt This way the solder will create a better joint with the copper surface d Have your flush cutter needle nose plier or tweezers handy e Having a roll of pap...

Страница 6: ...s section on page 3 All soldering will be done on the backside of the board You may proceed to solder the ceramic capacitors and the LEDs in place by following the labelling on the board It is recomme...

Страница 7: ...pay attention to the labelling of the transistors as one is an SS9012 and the other is SS9013 They both have different functions and must go in the correct place for this circuit to work Insert the 4...

Страница 8: ...s to solder this component Option 1 As shown in the photo solder the secondary board on the backside of the board To install in the correct orientation use the MQ2 solder point as reference Option 2 A...

Страница 9: ...te Do not expose the sensor to open flame The second method to use this module is to connect the third pin to Arduino analog pin and use analog read sketch to read the values from this module This exa...

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