IoT Based Air Quality Monitoring System with ESP32 Board using MQ135 Sensor and an LCD Display

[@mis.akanksha]

Amazing... He made the same i want.... Thanks 😊

[@uploadideaswithitamar]

Most welcome 😊

[@mis.akanksha]

Can u tell me how can i add humidity sensor also in it ?

[@uploadideaswithitamar]

You can add humidity sensor check out my playlists

[@arunkumarmanokaran7983]

Can we add buzzer into the esp32 board?

[@uploadideaswithitamar]

Yes

[@arunkumarmanokaran7983]

Pls give links for buying the components

[@uploadideaswithitamar]

Hum 🧐

[@bouniabderrahim9432]

same ideas but i used cellular network with sim900a.but it stucked in connecting to blynk server !have u ever faced this problem ?

[@uploadideaswithitamar]

No. For me it works very well!

[@bouniabderrahim9432]

@@uploadideaswithitamar it get stuck in connecting to blynk-cloud :80

[@uploadideaswithitamar]

@@bouniabderrahim9432 which board are you using ?

[@bouniabderrahim9432]

@@uploadideaswithitamar arduino uno with sim900a

[@uploadideaswithitamar]

@@bouniabderrahim9432 could you post the full error ?

[@532อาทิวัชรเผือกเพ็ง]

I follow you every step. But when tested, the number value is 0 and does not move at all.

[@uploadideaswithitamar]

Maybe you’re making a mistake in your code

[@elenaarianamanda5485]

why is 0-4095 the interval?

[@uploadideaswithitamar]

Because I’m using ESP32 board

[@elenaarianamanda5485]

@@uploadideaswithitamar and this is a rule?

[@kareemmohamed2434]

Is it possible for me to contact you for a school project?

[@uploadideaswithitamar]

What the project is about ?

[@kareemmohamed2434]

@@uploadideaswithitamar Students should use natural eco-friendly materials to construct a prototype building with inner volume ranging between 0.1 and 0.2 m3. The prototype shape using the materials mentioned above must reduce the inner temperature to at least 3 degrees C in the shade compared to the outside of the building. The prototype should be fed only by renewable energy sources such as solar, wind, etc. The prototype should be provided with a smart system that includes at least two (2) sensors, controllers, and at least two (2) actuators. Sensors may include motion, gas, water leakage, smoke, presence, wind speed, temperature, light, humidity, air pressure, etc. Actuators may include electrical, mechanical, etc. Your smart system should send a notification message to selected cell phones.

[@kareemmohamed2434]

@@uploadideaswithitamar can you help me with this project?

[@arunkumarmanokaran7983]

How much the project costs?

[@uploadideaswithitamar]

I don’t know