How to make a smoke detection alarm system with exhaust fan || Award winning science project

[@manidipanag2137]

I made this model. . At first it was not working Actually the sensor was not able to detect the smoke .. But now after recharging the Battery, again it is working .. Its a huge success

[@amarahandbags]

Very clear demonstration

[@MohammedAyman-w4x]

Very usefull

[@ssuthakar5640]

Can you tell the working procedure of BC557 transistor in this circuit

[@yasminakter4167]

Battery??

[@MohammedAyman-w4x]

Circuit diagram please 😢😢😢

[@nobarayt7170]

How to make a Foot step power generation project using arduino this project code send me

[@78655shaikhaakib]

Riplay mi sir

[@78655shaikhaakib]

Oder karna he mil jaiga sir

[@MKSmartcreations]

Please contact in Instagram - mksmartcreations or gmail- [e-mail]

[@bhavishapatel3485]

sir maine apko mail kiya he please cod dijie foot step power ganreter project ka plese

[@78655shaikhaakib]

???

[@78655shaikhaakib]

Heello sir Contet Numbar

[@78655shaikhaakib]

Phone number
Dona sir

[@rsvmahamda]

Sir sir contact number

[@rsvmahamda]

Hello sir contact number please

[@rsvmahamda]

Hello sir please contact number

[@78655shaikhaakib]

????

[@rsvmahamda]

Contact number sir please

[@78655shaikhaakib]

????