Adding the MQ135 library to Proteus is a simple yet vital step for any IoT or environmental engineering project. By using the "Test Pin" method, you can effectively debug your code and ensure your thresholds for "Hazardous" air quality are functioning correctly before you ever pick up a soldering iron.
The MQ135 is a versatile air quality sensor capable of detecting: Nitrogen Oxides (NOx) Alcohol Benzene Smoke and CO2
Open the "Pick Devices" window (press 'P') and type "MQ135" . Place the Sensor: Drop the sensor onto your schematic.
MQ135 Gas Sensor Library for Proteus: Download and Setup Guide
Ensure the package includes two essential file types: .LIB (Library file) .IDX (Index file) Step-by-Step Installation Guide
Copy the .LIB and .IDX files from your download and paste them directly into the folder identified above. 3. Restart Proteus
By varying the potentiometer during simulation, you mimic the increase or decrease of gas concentration.
To bridge this gap, you need to download and install a third-party library. This guide provides a step-by-step walkthrough to get your MQ135 simulation up and running. Why Use the MQ135 Sensor?