GAS Sensor Module MQ2 Stand alone System

Edited by VideoGuru:videoguru.page.link/Best

[@pradeepgupta1190]

In other videos, people are connecting 'Do' signal wire to minus of led & buzzer but u r joining with plus of led & buzzer. Which will work better. Please tell me

[@dextertech6570]

I guess 'O' means Out, not Zero. "AO" is Analog Out and "DO" is Digital Out

[@SumanDas-jl5by]

Great

[@jaineshk.r5162]

Can we use the small buzzer

[@jaineshk.r5162]

What power supply are you using

[@leela..14]

I used mq 2 sensor after piset when im keeping smoke near it the buzzer is not coming 😢any solution plz plz

[@futurethought566]

*I tried but when I connect to battery sensor light getting off with in 2 seconds, any body tell why it's getting switch off*

[@DharshithManoj]

Is it compulsory to use buzzer?.. Or we can use the sensor without it?

[@dipanjan100]

Not compulsory, it has been used for notification only

[@LogeshKumar-vs9uo]

Sir can we give the connections in the breadboard

[@dipanjan100]

Will upload soon

[@urvishshah8423]

I assembled circuit as shown in the video
It worked well,but in 2 hrs the 9v battery was fully discharged could you please give a solution?

[@dipanjan100]

The internal heater consumes maximum current, which can not be avoided, use lithium ion high mahal battery or supply from AC power line through a 5V DC supply

[@futurethought566]

@@dipanjan100 *I tried but when I connect to battery, sensor light getting off with in 2 seconds, any body tell why it's getting switch off*

[@futurethought566]

@@dipanjan100 *can we use smart ph charger*

[@Jorge-or3fr]

Hello My friend. Can it detect cigarrete smoking?

[@dipanjan100]

Yes you can

[@adityakarun6572]

Thank you sir for the explanation

[@dipanjan100]

Always welcome

[@futurethought566]

@@dipanjan100 *I tried but when I connect to battery, sensor light getting off with in 2 seconds, any body tell why it's getting switch off*

[@jairoquevedo]

Buzzer active o pasivo?

[@dipanjan100]

Active device

[@ALLROUGH99]

Sir its not working, the heat is not setting up , i am using 3.7 volt li,lion battery

[@dipanjan100]

Use 5V, after buying new sensor u need to pre heat for 48 hour

[@kier1752]

can i use 9v battery?

[@dipanjan100]

By 9V internal sensor heater may damage

[@dipanjan100]

If u want use 9v baytery, use 5v regulator IC 7805

[@the_markos_]

Can we use mq5 sensor in place of mq2 sensor

[@dipanjan100]

Yes u can

[@amsndd6379]

sir how long should we wait after giving 5v to the MQ3 sensor

[@dipanjan100]

Approximately 60 sec

[@user-cl5sl6pz7t]

fAKE

[@dipanjan100]

Do the experiment and then put your comments

[@sanjayvanjara1384]

😂😂😂😂chor