- Obecnie brak na stanie

This semiconductor gas sensor detects the presence of combustible gas and smoke at concentrations from 300 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.
![]() |
This flammable gas and smoke sensor detects the concentrations of combustible gas in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of flammable gas of 300 to 10,000 ppm.The sensor can operate at temperatures from -20 to 50°C and consumes less than 150 mA at 5 V. Please read the MQ2 datasheet (184k pdf) for more information about the sensor.
![]() |
Gas sensor with metal case bottom view. |
---|
Connecting five volts across the heating (H) pins keeps the sensor hot enough to function correctly. Connecting five volts at either the A or B pins causes the sensor to emit an analog voltage on the other pins. A resistive load between the output pins and ground sets the sensitivity of the detector. Please note that the picture in the datasheet for the top configuration is wrong. Both configurations have the same pinout consistent with the bottom configuration.The resistive load should be calibrated for your particular application using the equations in the datasheet, but a good starting value for the resistor is 20 kΩ.
We offer two breakout boards that make it easier to interface with these sensors: a Pololu carrier board and a SparkFun carrier board. The Pololu version is shown below.
|
![]() |
Pololu MQ Gas Sensor Carrier |
![]() |
Carbon Monoxide Gas Sensor MQ-7 |
![]() |
Alcohol Gas Sensor MQ-3 |
Producent BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Polska sprzedaz@kamami.pl 22 767 36 20
Osoba odpowiedzialna BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Polska sprzedaz@kamami.pl 22 767 36 20
Górna część obudowy do ODROIDA XU4 w kolorze niebieskim, do której można dokupić dolną część w dowolnie wybranym kolorze, tworząc w całości zamkniętą obudowę.
Brak towaru
Brak towaru
Brak towaru
Brak towaru
Brak towaru
Brak towaru
Komputer jednopłytkowy z mikrokontrolerem STM32F103VBT6 (ARM Cortex-M3, 128 kB Flash, 20 kB RAM, LQFP100)
Brak towaru
Brak towaru
Pendrive o pojemności 32 GB z interfejsem USB 3.0. Wyposażony w podwójne złącze: USB typ A i USB typ C. Kingston DTDUO3C/32GB
Brak towaru
Particle Photon to moduł IoT z mikrokontrolerem ARM (Cortex-M3) oraz modułem WiFi
Brak towaru
Brak towaru
Brak towaru
Brak towaru
Brak towaru
Brak towaru
Brak towaru