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?

The simulated MQ135 in Proteus works similarly to the real-world component, but with a major difference: Key Features of the Simulation

Copy the extracted GSB.LIB and GS.IDX (or MQ135.lib / MQ135.idx ) files and paste them directly into the folder mentioned above. 3. Restart Proteus

Integrating air quality monitoring into your electronic simulation projects requires the right components. The MQ135 is a popular hazardous gas sensor used to detect ammonia, nitrogen oxides, alcohol, aromatic compounds, sulfide, and smoke.

Sometimes Windows prevents files from being written to the C: drive. Paste the files using Administrator privileges.

If turning the potentiometer does not change the Arduino serial monitor readings, verify that the potentiometer is properly tied to 5V and GND. To help tailor this guide, let me know: Which version of Proteus are you currently using?