Atmospheric Gas Analyser Using MQ Series Sensors , DHT 11 Sensor & Arduino 

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yes it is the same

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Thanks broo❤️

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github.com/Zenomodiff/Atmospheric-Gas-Ananlyser-With-MQ-Series-Sensors-Dht-11/blob/main/Schematics.png

But there so lcd screen shown in the schematic sir.

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no need to connect D0 since we are taking analog values no need for D0

@@ZenoModiff thank you sirrr

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SCL -- A5 SDA -- A4

first go to this link :- github.com/arduino-libraries/LiquidCrystal/archive/refs/heads/master.zip open the arduino ide --> in the top go to --> sketch ---> include library ---> add zip library and show the zip file which was downloaded form the link for more info regrading this please refer ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jMSic83Prs8.html this video have a happy day

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iam just using the microusb cable to power the project maybe if you need to take a step further u can use vin and ground of arduino

@@ZenoModiff thank you sir

@@ZenoModiff but for that we have to change the connection right

Can you tell me?

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// For Gas sensors float m = -0.6527; //Slope float b = 1.30; //Y-Intercept float R0 = 21.91; //Sensor Resistance in fresh air these need to be used to get perfect values from the mq series sensors

no i just wire everything essentially please refer the schematics :-- github.com/Zenomodiff/Atmospheric-Gas-Ananlyser-With-MQ-Series-Sensors-Dht-11/blob/main/Schematics.png?raw=true

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connect lcd via i2c module to pins a4-sda and a5 scl

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it was on the description , for you here is the link to the code github.com/Zenomodiff/Atmospheric-Gas-Ananlyser-With-MQ-Series-Sensors-Dht-11/blob/main/Atmospheric_Gas_Analyser.ino

Simply delete all related function call for other sensors or comment them out

Use common ground , positive to Arduino 3.3v And data pin to Arduino related digital pin

for that you need to use an iot module namely (esp8266 or similar) please see this code bit.ly/3rRPePa and write similar one , if need help mail on sreeramzeno@gmail.com

please check the video description