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
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
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
Great
I used mq 2 sensor after piset when im keeping smoke near it the buzzer is not coming 😢any solution plz plz
What power supply are you using
Can we use the small buzzer
I guess 'O' means Out, not Zero. "AO" is Analog Out and "DO" is Digital Out
Thank you sir for the explanation
Always welcome
@@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*
*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*
Sir its not working, the heat is not setting up , i am using 3.7 volt li,lion battery
Is it compulsory to use buzzer?.. Or we can use the sensor without it?
Not compulsory, it has been used for notification only
can i use 9v battery?
By 9V internal sensor heater may damage
If u want use 9v baytery, use 5v regulator IC 7805
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?
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
@@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*
@@dipanjan100 *can we use smart ph charger*
Buzzer active o pasivo?
Active device
Can we use mq5 sensor in place of mq2 sensor
Yes u can
sir how long should we wait after giving 5v to the MQ3 sensor
Approximately 60 sec
😂😂😂😂chor
fAKE
Do the experiment and then put your comments