Interface TGS3870 (methane and CO) sensor with arduino

1

Hi all. I am new to the forum and I have basic knowledge of electronics. I am trying to build a small project to to air quality monitoring with arduino and different sensors. I have an Figaro TGS3870 for detecting both methane and carbon monoxide that I would like to interface with arduino. Here are the specs for the sensor. https://www.figarosensor.com/product/docs/tgs3870-f00_product%20infomation%28fusa%29_rev03.pdf

I have run few google search but I cannot find any material that explain how to do that. I was wandering if some of you can point me in the right direction? Thank you in advance

2

Hi,

it seems to be an analog sensor. So you have to build the circuit on the datasheet and then use such things:

The working link is here:

You will have to adapt the coefficient.

And this:

Biogas Analyzer Based on Open Source Hardware: Design and Prototype Implementation, Antonio José Calderón and Isaías González

I can’t send pdf here unfortunately

3

@pjg Thank you very much for your replay. I will have a look at the circuit. I guess this is the only way to interface it with the Arduino…