Mq135 Gas Sensor Library For Proteus !new! Download Upd Work [Extended — 2026]

Q: What is the MQ135 gas sensor used for? A: The MQ135 gas sensor is used for detecting gases such as carbon dioxide (CO2), nitrogen dioxide (NO2), and other pollutants in the air.

[ Arduino Uno / MCU ] <---> [ MQ135 Sensor Module ] <---> [ Test Pin / Potentiometer ] Use code with caution.

To get started, you need to find and download the custom library files for the MQ135. These packages are widely shared across electronics design communities and open-source repositories.

I can provide specific code and wiring steps for your project. Share public link

The is a popular gas sensor used for detecting ammonia (NH₃), benzene, carbon dioxide (CO₂), smoke, and other harmful gases . However, Proteus does not include this sensor in its default library. This custom library package adds a fully functional MQ135 simulation model to Proteus, enabling accurate gas sensing simulations in your IoT and embedded system projects.

void setup() Serial.begin(9600); pinMode(13, OUTPUT);

Extract the contents of the ZIP folder to your desktop or an easily accessible folder. Step 2: Install the Files into the Proteus Directory

Here is how to – the missing link that most guides ignore.

Verify that the test pin toggle is properly connected and functioning. The analog output changes relative to the state of this simulation control mechanism.

Paste the files into the folder. If prompted for administrator permissions, click . Step 3: Verify the Sensor in Proteus

Serial.begin(9600);

: Close and reopen Proteus to refresh the component database. Configuring the MQ135 in your Circuit Pick Component

Windows refuses to copy files into the Proteus LIBRARY folder. Solution: This is a file permission issue. Right‑click on the LIBRARY folder, select "Properties" , go to the "Security" tab, and ensure your user account has "Full Control" and "Modify" permissions. Alternatively, you can temporarily copy the files using an administrator account.

), and interfacing with microcontrollers like Arduino, PIC, or STM32.

Copy the extracted .lib and .idx files into the LIBRARY folder.