Overview: In this prototype, with Arduino UNO board, but any board with one analog input could be used. This project requires some very simple soldering to attach 4 header pins with 500 0hms resistor to the perforated board. Measurement VOCs: Sensitive to hydrogen, ammonia, ethanol, hydrogen sulfide, toluene, cigarette smoke. Measurement Value: ppm, Here we measure in Voltage Parts: 1 x Arduino Uno with USB cable , 1 x TGS23062 H2S sensor( picture below), 1 x Perforated board or Breadboard, Wires to solder and soldering station, conductive flux. *TGS2602 sensor pins Arduino Uno:* Pin1 - GND - of A1 Pin2 - In series 450 ohm or 500-ohm resistor, The resistor is connected to the Arduino pin A1 Pin3 - 5V + Of 5V Pin4 - 5V + Of 5V [link text](https://gitlab.com/Sairamdhandapani/heart-beat-monitor-with-arduino-/tree/master/H2S%20sensor%20test)
Hi, cool! What is the range of concentrations this sensor can detect?
Also, what are some of the use cases you have in mind... like, landfill fumes, perhaps?
Thanks for posting!!!
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This data /value are Analog values: -With he open air, after sensor warms up for ~1 minute: 52 -breathing slowly over the sensor for several seconds: 73 -holding sensor directly over an open bottle of grain alcohol: 235 -inside the washroom post pee/use of cleaning products: 450-600
For measuring in ppm the range of concentration as per datasheet is 1-30ppm and >10ppm indicates Unsafe.
Welcome @warren . Your past Prototypes were worth testing.
Right now TGS825 is not for scale if I am right.
Did test with Smoke dust, ciggar and cooking Gas. The values raised > 600+ indicating unsafe. Will test with landifll fumes and let know the readings of the same.
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