Elektronikus összetevők

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Features
Two selectable differential input channels
On-chip active low noise PGA with selectable gain of 3264 and 128
On-chip power supply regulator for load-cell and ADC analog power supply
On-chip oscillator requiring no external component with optional external crystal
On-chip power-on-reset
Simple digital control and serial interface: pin-driven controlsno programming needed
Selectable 10SPS or 80SPS output data rate
Simultaneous 50 and 60Hz supply rejection
Current consumption including on-chip analog power supply regulator: normal operation < 15mApower down < 1uA
Operation supply voltage range: 26 ~ 55V
Operating Temperature Range:-20 degree ~ 85 degree
 
Connection:
Red to E
Black to E-
Green to A
White to A-
 
Package Included:
1X Weight Sensor
1 X HX711 24BIT Precision ADC Module
HX711 Weighing Sensors  Click to buy>>>>>
HX711 1KG Weighing Sensors  Click to buy>>>>>
 HX711 2KG Weighing Sensors  Click to buy>>>>>
 HX711 5KG Weighing Sensors  Click to buy>>>>>
 HX711 10KG Weighing Sensors  Click to buy>>>>>
 HX711 20KG Weighing Sensors  Click to buy>>>>>

RGB LED Ring 12Bit WS2812 5050 RGB LED Integrated Drivers
 
 
Description:
There is a single data line with a very timing-specific protocol
Since the protocol is very sensitive to timing,
it requires a real-time microconroller such as an AVR, A rduino, PIC, mbed, etc
It cannot be used with a Linux-based microcomputer or interpreted microcontroller
such as the netduino or Basic Stamp
 
Features:
Chip: WS2812 (built-in LED)
LED:1pcs 5050 RGB full color highlighting
Voltage: 5V
Ports: Digital
Platform: Arduino microcontroller
Applications:
Full-color module, Full color soft lights a lamp strip 
LED decorative lighting, Indoor/outdoor LED video irregular screen
Package Included:
1 x Ring Wall Clock 1 Super Bright WS2812 5050 RGB LED Lamp Panel

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8 channel WS2812 5050 RGB LED lights built-in full color-driven development board

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508-301-2P 301-2P 50PCS 2 Pin Screw Terminal Block Connector 5mm Pitch

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Package includes:
25PCS Tactile Push Button Switch
25PCS Tact Cap (Red black white blue yellow) Each color 5pcs

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Detect light, brightness detection Through the potentiometer can adjust the brightness detection valve point, comes with a relay, do a variety of brightness detection switch, can control all kinds of street lamps, starts automatically in the night, daytime automatically extinguished and the vehicle activities control and automation equipment(Compared with the photosensitive resistance, the direction is relatively good, can sense the fixed direction of the light source, detection of the light front of the photodiode is in front of the light, it is difficult to detect the surrounding, often in the light seeking function
 
)
 
 
Module features:
1, the use of light sensitive diode induced light intensity, comes with a relay, direct control of the load
2, with potentiometer sensitivity adjustment, by adjusting the potentiometer, set the starting relay threshold, when the brighter than this threshold, module and relay, dark in this threshold value, the relay is released Therefore, connected with a normally open and the common end is to control the switch during the day and connected with a normally closed and the common end is to control the switch of the night
3, working voltage 5V
4, output form: directly connected to the 220V 10A AC or 10A DC30V load
5, with 4 fixed bolt holes, easy to install
6, small size: 5cm x 26cm PCB
7, using a wide voltage LM393 comparator
Electrical parameters:
Power supply voltage: 5VDC
Current: more than 100mA
Load: 10A 250V AC or 10A 30V DC
Modules for use:
1, the photosensitive diode is most sensitive to ambient light, usually used to detect the ambient light brightness
2, module in the light more than setting a threshold, a relay, a public end and often start connected, and when the outside ambient light is less than a preset threshold, the relay to disconnect, the public end with the normally closed terminal is connected
3, the public side, normally open and normally closed three ports is equivalent to a double control switch, the relay coil is energized, the public often start end and conduction, no electricity, public end end communicated with the normally closed
 
Delivery list:
The photosensitive diode module 1 with relays, with photosensitive diode
Module wiring diagram
When detecting ambient light is higher than the set temperature, relay, bright lighting, is lower than the set value, relay disconnect, bright lights (shown only said wiring method), grounding for high voltage method
 
When detecting ambient light is higher than the set temperature, relay, bright lighting, is lower than the set value, relay disconnect, bright lights (shown only said wiring method), for common power supply connection

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Free Shipping 10 PCS High Quality WH148 B1K Linear Potentiometer 15mm Shaft With Nuts And Washers Hot 100% Brand new and high quality
Impedance: 1K ohm
Type: B Type Taper - linear
Material: Carbon Film Metal
Interface: 3PIN
Shaft Length: m 
You need to other resistance, please click the link
http://wwwaliexpresscom/store/343255/search?SearchText=WH148&origin=y
 
 
 

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Notice:The new tracking number for China Post Ordinary Small Packet Plus can be traced only befor it arrive the airport of your country,please choose China Post Air Mail if you want a full tracking infoThe same product will arrive in 15 to 60 days
Tracking info of  China Post Ordinary Small Packet Plus can be check here:www17tracknet/en
Mini Fingers Measuring Detect Heartbeat Sensor Module For Arduino
Features:
Voltage input range: DC0-25V
Voltage Detection range: DC002445V-25V
Voltage Analog Resolution: 000489V
DC input connector: Terminal cathode connected VCC, anode to GND
Output Interface: " " then 5/33V, "-" connected GND, "s" then the  ardu AD pins
Package Include
1 x  Voltage detection Module

2 Road Relay Module with Optocoupler Isolation Supports High or Low Trigger
Description:
1 Maximum load:AC 250V/10A, DC30V/10A
2 SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA
3 the module voltage 5V
4 each channel module can be set high or low triggered by jumper
5 fault-tolerant design, even if the control line is broken, the relay will not operate
6 power indicator (green), 2 relay state indicator (red)
7 interface design user-friendly, all interfaces are available through the wiring terminal direct connection leads, very convenient
Module Port:
1 DC : DC power supply positive 
2 DC-:   DC power supply negative 
3 IN1:   Channel 1 signal trigger terminal
4 IN2:   Channel 2 signal trigger terminal
Relay Output:
1 NC1:     Channel 1 relay normally closed pin
2 COM1:  Channel 1 relay common pin
3 NO1:     Channel 1 relay normally opened pin
4 NC2:     Channel 2 relay normally closed pin
5 COM2:  Channel 2 relay common pin
6 NO2:     Channel 2 relay normally opened pin
 
High And Low Level Trigger Option:
1 S1:   It is option switch for channel 1 relay
2 S2:   It is option switch for channel 2 relay

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1USB Volt Current Voltage Charger Capacity Tester Shell Case TEST Power Meter
Features:
 
 
100% Brand New
Size (L x W x H): 59mm x 23mm x 135mm
Measuring range: 4-9V
Current: 0-33A
Input voltage: 35-9V
Battery capacity: 0-99999mAh
Working time: 0-99H
Working hours and power capacity memory function after power off
Model number: USB
Precision: plus or minus 1%
Package Content: Ammeter Voltage Charger USB Detector Tester
Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item We guarantee the style is the same as shown in the pictures Thank you!

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Notice: The new tracking number for China Post Ordinary Small Packet Plus can be traced only befor it arrive the airport of your country,please choose China Post Air Mail if you want a full tracking infoThe same product will arrive in 15 to 60 days
 
 
Tracking info of China Post Ordinary Small Packet Plus can be check here: www17tracknet/en
 

2PCS IC Test Universal ZIF Socket 14pin 14 pin dip 254mm IC Socket pitch

KF301-2P KF301-50-2P KF301 Screw 2Pin 50mm Straight Pin PCB Screw Block green
 

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High Quality 4 PIN Infrared Speed Sensor Module
Module Description
 
 
1 Working voltage: 33--55V
2 The use of imported groove coupler sensor, the groove width of 5mm
3 The sensor slots are blocked, the output high and the light is off; no shelter, output low and lights
4 Output form: Digital switching output (0 and 1)
5 Using LM393 comparator output, type clean, good waveform, driving ability over 15mA
6 A fixed bolt hole for easy mounting
 
Module interface specification (3-wire)
 
1 VCC 33V-5V external
2 GND External GND
3 DO small board digital output interface switch connected to the microcontroller IO port
4AO: Invalid
 
 
 
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Product Description:
Input voltage: DC 12V
Output Type: Output Switch
Setting range: 1~999 minutes
Control capacity: 10A

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Delivery time :
EMS :10-30days !!!
DHL UPS FedEx :only need 3-7 work days !!!
China post :15-60 work days , maybe need more time If you do not receive the package at this time,Please do not open dispute, Because China Post need some time, if you are urgent need of goods, please choose DHL or UPS or FedEx or contact us !
If you also need purchase more IC part or other electronic part ,please contact us ,we will give you a best price !!!

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DC-DC Auto Boost Buck adjustable step down Converter XL6009 Module Solar Voltage
Auto start voltage will be pulled down to 7V less or smaller engine at high speed when the voltage up to 15V or higher For 12V electrical work hard at work, this automatic buck module solves this problem , regardless of the input voltage is 5V or 12V or 32V, the output can be stabilized at 12V
Wide input voltage 5V - 32V
Wide Output Voltage 125V - 35V ( with automatic buck , scope of work, any voltage inputs can be arbitrarily regulated voltage output ) ;
Built- 4Aefficient MOSFET switches enable efficiency up to 94% ; (LM2577 current is 3A)
high switching frequency of 400KHz, the ripple is smaller and smaller (LM2577 frequency only 50KHz)
Application:
      Car regulator , solar photovoltaic, wind power and other applications of voltage instability
Technical parameters
Model Specification:Automatic Buck module
Module Properties:Non- isolated boost (BOOST)
Rectification:Non- Synchronous Rectification
Input Range:38V- 32V
Output Range:125V-35V
Input Current:3A ( max ),no-load 18mA (5V input , 8V output, no-load is less than 18mA Higher the voltage , the greater the load current )
Conversion efficiency:<94% ( greater the pressure, the lower the efficiency)
Switching frequency:400KHz
Output Ripple:50mV ( the higher the voltage , the greater the current , the greater the ripple )
Load Regulation:± 05%
Voltage Regulation:± 05%
Operating Temperature:-40 - 85
Dimensions:48mm * 25mm * 14mm ( L * W * H )

10pcs SMD tantalum polymer capacitors 2R5TPE330M9 25V 330UF POSCAP, polymer capacitance ENGINEERING OF
 

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This is USB controlled relay Board with 2 channels It's used the HID technology, so no need to install any driver in windows system and you can easy to use We also provide an application and the C develop library that you can easy to integrate this module to your project 
The relay can control the maximum voltage 250V, 10A AC load and 30V, 10A DC load 
Support WIN7, XP 32 -bit systems
This module can be used: 
-Home automation 
-Robotics Contorl 
-Control doors and windows via windows system 
-Contorler power supply 
PCB SIZE: 565mm*40mm
Module Parameter
Relay Type

Songle 5V Relay
Relay QTY

1
Contack Type

NC/ COM/ NO
Input Voltage

DC 5V
Input Current

300mA
 
 
Application
1 Supply the application code (Green indicates that the relay is closed , the red disconnect)
2 Supply C lib and dll for building your own project (include usb_relay_devicedll, usb_relay_devicelib, usb_relay_deviceh)
Open the device , the software automatically obtain the current working state relay
 
Package included:
 1PCS x   5V USB Relay 2 Channel Programmable Computer Control For Smart Home

 
GY-25 Tilt Angle Module Serial Output Angle Data Directly MPU-6050 Module
 
 
Main Features
1 Model: GY-25
2 Chip: MPU-6050
3 Power voltage: 3 - 5V
4 Communication mode: Serial communication ( baud 9600,115200 ), IIC communication
5 Model Size: 155mm*115mm
6 Pitch: 254mm
7 Direct Data: YAW ROLL PITCH
8 Heading angle (YAW ):  ± 180°
9 Roll angle (ROLL):  ± 180 °
10 Pitch angle (PITCH):  ± 180°
11 Angular Resolution:  001°
 

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Termination conditions:the release of protection condition then automatic recovery, without activation (optional charger to activate)
Main functions: the overcharge protection function, overdischarge protection, short-circuit protection, over current protection
Working temperature: -40~ 85 degrees (high temperature environment and please strengthen radiating)
Connection: welding output
Module size: 50mm*22mm*4mm
Applications:
The protective board can be used as the nominal voltage of 144V, 148V, 168V four series of polymer lithium battery group, four series of 18650 lithium batteries as overcharge and over discharge, short circuit protection Without the activation function in the power application for high instantaneous current,and in inverter application for avoid false triggering protectionSo it will use more convenient
Note:No part design on the back, can be attached to the heat sink to ensure high current work situation for a long time

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028 Inch  Mini Digital Voltmeter 
The delivery default red You need to specify the color, please leave a message We will try to delivery according to your requirements
The voltmeter is small, only 028 inches, range DC DC0-100V, 2 and 3-wire generic products, to break the routine voltmeter, is the latest design, can work directly on 5V, 9V, 12V, 24V and other circuits, without regulation With three wiring, easy access to car / battery car / motorcycle car line, with reverse polarity protection function, line reversed not burn Used to monitor battery voltage, grasp the battery voltage state, it can also be used for other products voltage measurement applications
Feature:
1 product stability, high measurement accuracy
2 Overall standard size, easy installation
3 Power supply protection circuit using a polar
NOTE: Three-line voltage range 0-100V, but also for the use of second-line voltage is within 40V, otherwise there is a danger of burning
Technical Parameters:
Operating voltage: 40 ~ 40V (with a reverse polarity protection function)
Detection voltage: 00 ~ 100V
Operating Current: <20mA
Display: 028 "LED, red green blue yellow (colors)
Dimensions: 30 × 117 × 92 mm (length*width*height)
Installation hole: 23 × 10 mm
Measurement rate: ≥200mS / times
Accuracy: 3 ‰
Extreme working conditions
Low operating voltage: 40V
Maximum working voltage: 40V
Working temperature: -10 ~ 65°C
Humidity: 10 to 80% (non-condensing)
Working pressure: 80 ~ 106kPa
Sun exposure: no direct exposure
 

508-301-2P 301-2P 10PCS 2 Pin Screw Terminal Block Connector 5mm Pitch

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Notice: The new tracking number for CHINA Post Ordinary Small Packet Plus can be traced only befor it arrive the airport of your country,please choose China Post Air Mail if you want a full tracking infoThe same product will arrive in 15 to 60 days
 
Tracking info of  China Post Ordinary Small Packet Plus can be check here: www17tracknet/en
 
 
 
Product Name: GP2Y1010AU0F dust sensor module
Technical parameters:
Power supply voltage: DC5 ± 2V
Operating Current: 20mA (peak)
Sensitivity: 05V / (01mg / m3)
The minimum detection level of particles: 08 m
Clean air voltage: 09V typ
Working temperature: -10 ~ 65 
Storage temperature: -20 ~ 80 
Size: 46mm × 30mm × 176mm
Size Weight: 15g
Uses: mainly used for dust removal equipment alarm equipment, air purification equipment, dust robots, fire alarm, etc industry equipment can detect smoke particles, pollen spores and other particles;
 
ShP GP2Y1010AU0F Dust Sensor *1
Cable *1
150ohm resistor *1
16v220uF capacitor *1
 

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10PCS High Quality WH148 B50K Linear Potentiometer 15mm Shaft With Nuts And Washers Hot
 
100% Brand new and high quality
Impedance: 50K ohm
Type: B Type Taper - linear
Material: Carbon Film Metal
Interface: 3PIN
Shaft Length: About 15mm
 

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433MHZ spring antenna; 433MHZ built-in antenna; 433MHZ module antenna; copper Longer sectionGain(dBi):215DB
 
HPD433T - 215 - A spring antenna, are specially designed for wireless data transmission system of antenna, the antenna standing wave ratio is small, small size, structure, easy installation, stable performance, has the very good ability to anti vibration and agingAntenna before delivery is the HP network analyzer in the wireless data transmission system under the simulation environment of strict test
 
Technical indicators
Product model: HPD433T - 215 - A
Working frequency: 428 MHZ to 438 MHZ
Standing wave ratio: < = 15
Gain(DBI): 215 
Maximum power: 10 w
Input impedance: 50 ohm
Weight: 1 g
Height: 17 mm ( / - 1 mm)
Color: golden
Interface: direct welding
 

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Notice: The new tracking number for  China  Post Ordinary Small Packet Plus can be traced only befor it arrive the airport of your country,please choose China Post Air Mail if you want a full tracking infoThe same product will arrive in 15 to 60 days
Tracking info of  China Post Ordinary Small Packet Plus can be check here: www17tracknet/en
This product advantage:  raspberry pie s no power switch, power shutdown can be to remove the USB line, very troubleEspecially in the process of preliminary debugging, very inconvenient, this product can effectively protect your raspberry pie, (There are a lot of players, because the power switch plug pull too many times, create loose, contact undesirable phenomenon, it is difficult to solve!
(according to the actual operation, will switch to McIro USB end (used to be in the middle part), a more practical and convenient)
At the same time also can use your mobile phone, such as micro USB charging equipment, "with one click you can avoid to mobile devices such as charging for a long time for a long time, reduce the battery life(such as charging at night without switch, you have to pull the line, very troublesome)
1, specification description: USB A/M USB key switch Micro USB 5 p/M
2, wire specifications: support 2 a current
3, product length: 1 m
4, product requirements, comply with ROHS requirements
 
Note: this line not as cable, but as the power cord, can only be used for raspberry pie, cannot be used for mobile phones and other devices
If you buy more quantity, Please contact us
buy more parts used the "Add to cart" we will make the discount for you
•

 
Specification:
 
100% brand new
Voltage: 6V
Revolving speed: 200RPM
Motor size: approx12 x 24mm (Dia*H)
Shaft size: approx 3 x 10mm (Dia*L)
 
Package included:1pc x Mini Metal Gear Motor
 
Note: Please allow 1-5mm difference due to manual measurement

 
 
 

PWM DC Motor Speed Regulator Adjustable Speed Control Switch 12V 24V 36V 10A
Features:
 
CCMHC DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM)
Input supply voltage range is 12V-40VDC
The maximum output power : 400W(the power is 12V * 10A =120W 24V maximum power of 200W)
PWM frequency is 21KHz ; 
Adjustable speed range is 5% -100%  
Incorporate a 10A fuse, and with the protection function of reverse connect power supply
Suitable for the DC motor (or DC load) within 8A, Peak current 10A
Item size: 236*217*11 inches ; Net Weight:24 ounces
Operating instruction: 
    Before you attempting to wire the controller, make sure power is off
    WARNING: TO CHANGE MOTOR DIRECTION, INTERCHANGE THE POSITIVE AND NEGATIVE WIRES OF MOTOR
 
   1 Connect wires refer to the “wiring diagram”
   2 Turn on the power, and adjust the potentiometer 
   3 If you need to connect the potentiometer by wire, remove the potentiometer on the board, and connect it to the white 3-pin 
    header
Package Including: 10PCS x DC Motor Speed Controller

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Feature:
 
Designed to meet the requirements of the electronics
Precision engineering industries
100% brand new and high quality
ESD Safe Tweezers Anti-Static
Size:
ESD-10:anti-static (110mm)
ESD-11:fine tip straight (140mm)
ESD-12:fine tip straight (135mm)
ESD-13:fine and Round (115mm)
ESD-14:Super fine tip straight (110mm)
ESD-15:fine tip curved (120mm)
 
Package Include:
1 x ESD-10 Tweezer
1 x ESD-11 Tweezer
1 x ESD-12 Tweezer
1 x ESD-13 Tweezer
1 x ESD-14 Tweezer
1 x ESD-15 Tweezer

KF301-2P KF301-50-2P KF301 Screw 2Pin 50mm Straight Pin PCB Screw Block Red
 
 
 

The US-025 / US-026 ultrasonic ranging module can achieve the non-contact ranging function of 2cm~6m The working voltage is 3v-55v and the working current is 53ma It supports the GPIO communication mode and works stably and reliably
The us-025 and us-026 have the same performance, size and principle
The difference between:
Us-025 USES double panel, us-026 USES single panel;
The 4Pin row of us-025 is welded on the front side (probe side), us-026 is a single panel, there is no welding pad on the front side (probe side), and the welding pad is welded on the back side (chip side)
Main technical parameters
Electrical parameters
US - 025, the US - 026
Ultrasonic ranging module
Working voltage
DC 3 V to 55 V
Working current
53 mA
Working temperature
40 ° -- 85 °
Output way
GPIO
Angle of induction
Less than 15 degrees
Detection range
2 cm - 600 cm
Detection accuracy
01 cm 1%
Size of this module: 45mm*20mm*12mm There are four mechanical holes with a radius of 1mm on the board
ppendix: us-025 / us-026 high-precision ranging routines
Unsigned int EchoPin = 2;
Unsigned int TrigPin = 3;
Unsigned long Time_Echo_us = 0;
/ / Len_mm_X100 = length * 100
Unsigned long Len_mm_X100 = 0;
Unsigned long Len_Integer = 0; //
Unsigned int Len_Fraction = 0;
Void setup ()
{
Serial The begin (9600);
PinMode (EchoPin, INPUT);
PinMode (TrigPin, the OUTPUT);
}
Void loop ()
{
DigitalWrite (TrigPin, HIGH);
DelayMicroseconds (50);
DigitalWrite (TrigPin, LOW);
Time_Echo_us = pulseIn (EchoPin, HIGH);
If ((Time_Echo_us < 60000) && (Time_Echo_us > 1))
{
Len_mm_X100 = (Time_Echo_us * 34) / 2;
Len_Integer = Len_mm_X100/100;
Len_Fraction = Len_mm_X100% 100;
Serial Print (" the Present Length is: ");
Serial Print (Len_Integer, DEC);
Serial Print (" ");
If (Len_Fraction < 10)
Serial Print (" 0 ");
Serial Print (Len_Fraction, DEC);
Serial Println (" mm ");
}
Delay (1000);
}

The US-025 / US-026 ultrasonic ranging module can achieve the non-contact ranging function of 2cm~6m The working voltage is 3v-55v and the working current is 53ma It supports the GPIO communication mode and works stably and reliably
The us-025 and us-026 have the same performance, size and principle
The difference between:
Us-025 USES double panel, us-026 USES single panel;
The 4Pin row of us-025 is welded on the front side (probe side), us-026 is a single panel, there is no welding pad on the front side (probe side), and the welding pad is welded on the back side (chip side)
Main technical parameters
Electrical parameters
US - 025, the US - 026
Ultrasonic ranging module
Working voltage
DC 3 V to 55 V
Working current
53 mA
Working temperature
40 ° -- 85 °
Output way
GPIO
Angle of induction
Less than 15 degrees
Detection range
2 cm - 600 cm
Detection accuracy
01 cm 1%
Size of this module: 45mm*20mm*12mm There are four mechanical holes with a radius of 1mm on the board
ppendix: us-025 / us-026 high-precision ranging routines
Unsigned int EchoPin = 2;
Unsigned int TrigPin = 3;
Unsigned long Time_Echo_us = 0;
/ / Len_mm_X100 = length * 100
Unsigned long Len_mm_X100 = 0;
Unsigned long Len_Integer = 0; //
Unsigned int Len_Fraction = 0;
Void setup ()
{
Serial The begin (9600);
PinMode (EchoPin, INPUT);
PinMode (TrigPin, the OUTPUT);
}
Void loop ()
{
DigitalWrite (TrigPin, HIGH);
DelayMicroseconds (50);
DigitalWrite (TrigPin, LOW);
Time_Echo_us = pulseIn (EchoPin, HIGH);
If ((Time_Echo_us < 60000) && (Time_Echo_us > 1))
{
Len_mm_X100 = (Time_Echo_us * 34) / 2;
Len_Integer = Len_mm_X100/100;
Len_Fraction = Len_mm_X100% 100;
Serial Print (" the Present Length is: ");
Serial Print (Len_Integer, DEC);
Serial Print (" ");
If (Len_Fraction < 10)
Serial Print (" 0 ");
Serial Print (Len_Fraction, DEC);
Serial Println (" mm ");
}
Delay (1000);
}

Product Description
DC 5V 1-Channel Relay interface board
Indication LED for output, can be directly output signal chip microcomputer control

Micro SD Storage Expansion Board For D1 MINI Mciro SD TF Card Memory Shield Module SPI For D1 MINI
 
 

Smart Electronics 1pcs MQ2 MQ 2 MQ-2 Smoke Liquefied Flammable Methane Gas Sensor Module for Arduino Diy Starter Kit
 
MQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (SnO2) When there is the environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal MQ-2 gas sensor high on gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapors are also very good This sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications 
 
Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc 
 
Using high-quality dual-panel design, with power indicator and TTL signal output instructions;
The switching signal having a DO (TTL) output and analog output AO ;
TTL output valid signal is low ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
Analog output voltage with the higher concentration of higher voltage
A gas, natural gas, city gas , smoke better sensitivity
There are four screw holes for easy positioning ;
Has a long life and reliable stability
Rapid response and recovery characteristic
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 01 and 5V)
AO output :01-0 3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal
VCC: positive power supply (5V)
GND: power supply is negative
DO: TTL switching signal output
AO: analog signal output
Package included:
100% Brand New
1set x  MQ-2