Introducing the Pmod AQS… A New Air Quality Sensor

We are excited to introduce our newest Pmod- the Pmod AQS! This Pmod is an easy way to add indoor air quality measurements to your FPGA or Arduino design!

The Pmod AQS uses the CCS811 system on chip solution to provide readings of volatile organic compounds (VOC) in I2C data format. This solution involves an integrated MOX (metal oxide) sensor which is read into a 10 bit ADC where the microcontroller is able to perform calculations on the raw sensor data, drive different modes and read out results. This microcontroller is relatively low-power consuming, allowing designers to preserve valuable battery life.

So, what exactly can you measure with a VOC sensor?
VOC measurements are primarily used to detect human-irritant compounds in the air. Common items that emit detectable VOCs include:

• paints, paint strippers and other solvents
• wood preservatives
• most aerosol sprays
• cleansers and disinfectants
• moth repellents and air fresheners
• stored fuels and automotive products
• hobby supplies and craft glues
• dry-cleaned clothing
• pesticides
• perfumes
• building materials and furnishings
• office equipment such as copiers and printers, correction fluids and carbonless copy paper
• smokes (cigarette, marijuana and cigar etc.)
• gaseous human emissions

Basically anything that has a potential detectable to the human nose, (“smell”), will most likely be able to be measured by the Pmod AQS.

You can use the Pmod AQS to measure the overall contamination level of the air in a space for highly scientific and health related reasons… or you could create a fart detector. We know you were all thinking it. The answer is yes. Yes you can.

And you should! Make sure to go check out the Pmod AQS and add it to your next order.

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