Indoor Air Quality Monitor With ESP32

CO2 Monitoring Sensor

Indoor Air Quality With Hornbill ESP32

Temperature in degree Celsius
Humidity in Percentage
Carbon Dioxide(CO2) equivalents in Parts per Million ppm
Total Volatile Organic Componds (TVOC) in Parts per Billion ppb

Volatile Organic Compounds (VOCs)

VOCs wiki

Do you know what a VOC is?

Hornbill Industrial Data Logger

Building a reliable and rugged Air Quality Logger with Hornbill ESP32 PART-1

www.crowdsupply.com/explore-embedded/hornbill

Creating a Smart Home with Blynk

www.Blynk.cc

CO2 Monitoring with K30 Sensor

www.instructables.com/howto/Indoor+Air+Quality

IoT Air Quality Sensor - MQ2 gas sensor + MQ9 gas sensor

Environment Air Quality Monitor   instru

Air Quality Meter

Build an Arduino BLE-Enabled Indoor Air Quality Monitor

Gas Sensor(MQ2) - detecting H2, LPG, CH4, CO, Alcohol, Smoke or Propane
                      MQ3 - for detecting Alcohol, Benzine, CH4, Hexane, LPG, CO
                      MQ5 - for detecting H2, LPG, CH4, CO, Alcohol
MQ9 - for detecting LPG, CO, CH4

Sensor	Gas Type	Get One Now
MQ2	Combustible Gas, Smoke
MQ3	Alcohol Vapor
MQ5	LPG, Natural Gas, Town Gas
MQ9	Carbon Monoxide, Coal Gas, Liquefied Gas

https://www.seeedstudio.com/Grove-Air-quality-sensor-v1.3-p-2439.html

Indoor air quality monitor ESP8266 with sensors

Air quality monitoring IOT – Arduino & sensors connected to a Raspberry Pi - open-bigdata.com

*Sensors*
DSM501A Dust Sensor	5 $
IIC/I2C 1602 LCD Display Module	3 $
DHT22 Temperature & humidity	3 $
MB102 3.3v, 5v solderless power module for 6 components	1 $
MQ135 Quality Sensor Hazardous Gas Detection Module For Arduino	1.5 $

Adventures in Air Quality Monitoring with Industrial IoT Sensors and California Government - valarm

https://seetheair.wordpress.com/2016/06/13/diy-iot-sensors-weather-air/

https://www.ibm.com/developerworks/library/iot-mqtt-nodemcu-monitor-air-quality/

Industrial IoT Applications - Remote Air Quality + CO2 Sensor Monitoring - instructables.com

https://blog.adafruit.com/2015/05/26/make-an-air-pollution-detector-with-arduino/

https://yticadu.appspot.com/iblefeed

https://www.youtube.com/watch?v=jdRsfYrWhFw

Weather Meter Hookup Guide
ESP32 Environment Sensor Shield Hookup Guide

Publish the CO2 concentration of an MH-Z19 sensor to Domoticz, Arduino code compatible ESP32 / ESP8266
Presentation of the CO2 sensor MH-Z19
US $18.70

https://diyprojects.io

senzory - czujnik gazu pl
https://www.ledats.pl/pl/294-czujnik-gazu

PoE Enbled Ethernet/TF Card Shield

Arduino Code for K-30 CO2 Sensor Works for S8 Sensor Too - co2meter.com
http://hosted.verticalresponse.com/450864/5e2f81c1fd/TEST/TEST/

TVOC and CO2 Measurement using Arduino and CCS811 Air Quality Sensor

Monitoring air quality with IAC-core c and ESP8266

Python on ESP32 for Industrial LoRaWAN Applications - www.hackster.io

IoT based Air Pollution Monitoring System using Arduino

Sonoff SC WiFi Wireless Realtime Indoor Environmental Monitor Station

Itead Sonoff TH 10A Smart WiFi Switch Time DIY Controller ... with Humidity Temperature sensor via phone

Tech Note 067 - Bosch BME680 Environmental Sensor. Air Quality, Temperature, Pressure and Humidity

Bosch Sensortec BME680 - mouser.com

Tech Note 080 - ESP32/ESP8266 Data Logging Webserver - YouTube

M5Stack ESP32 MPU9250 9Axies Motion Sensor Core Development Kit Extensible IoT Development Board

Air Quality Sensor Test Results with Raspberry Pi

Your water is safe, how about your air?

What are safe levels of CO and CO2 in rooms?

CO2

250-350ppm         Normal background concentration in outdoor ambient air
350-1,000ppm      Concentrations typical of occupied indoor spaces with good air exchange
1,000-2,000ppm   Complaints of drowsiness and poor air.
2,000-5,000 ppm Headaches, sleepiness and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
5,000 ppm             Workplace exposure limit (as 8-hour TWA) in most jurisdictions.
>40,000 ppm Exposure may lead to serious oxygen deprivation resulting in permanent brain damage, coma, even death

CO

9 ppm        CO Max prolonged exposure (ASHRAE standard)
35 ppm        CO Max exposure for 8 hour work day (OSHA)
800 ppm    CO Death within 2 to 3 hours
12,800 ppm CO Death within 1 to 3 minutes

www.kane.co.uk/knowledge-centre/what-are-safe-levels-of-co-and-co2-in-rooms

Help
1btn: Open Source Wi-Fi Connected IoT Button

Send an SMS to or from someone
Function as a call button for a nurse, server, or help desk
Send a reminder or confirmation, like when your kids get home from school

http://www.knewron.co.in

Volatile Organic Compounds (VOC)
Chemicals that emit gas are called VOC. Another common term, Total VOC (TVOC) is a combined variety of organic chemicals that emit gas. They are measured in micrograms per meter cubed (µg/m³) of air, parts per million (ppm), or parts per billion (ppb). Most buildings will have TVOC levels ranging from 100-500 µg/m³ (Aerias). Table 1, below, is used as a guide to compare TVOC results with its symptoms.

Table 1: TVOC and Symptoms

TVOC	Symptoms
< 200 µg/m³	No irritation or discomfort expected
200 – 3,000 µg/m³	Irritation and discomfort may be possible
3,000 – 25,000 µg/m³	Discomfort expected and headache possible
> 25,000 µg/m³	Toxic range where other neurotoxic effects may occur

Source from Aerias

Concentrations of many VOC are consistently (up to ten times) higher indoors than outdoors (US Environmental Protection Agency, 2010). Therefore, some VOC are regulated due to its short and long term affects on the health of humans. For example, the most common VOC is formaldehyde. On average, formaldehyde levels measured over a day in Canadian homes were 20-40 μg/m3 (16-32.5 ppb). Daily levels as high as 95 μg/m3 (77 ppb), however, have been recorded (Health Canada, 2009b). This chemical is strictly regulated by the Occupational Safety & Health Administration (OSHA) as it has been known to cause cancer. Table 2, below, lists a few common VOC along with the recommended exposure limit (REL) of the National Institute for Occupational Safety and Health (NIOSH), permissible exposure limit (PEL) of OSHA, identified symptoms if exposed to the chemical and some examples of products that contain the chemical...

critical-environment.com

Measurement accuracy of the MG-811

CCS811 stops working

vs sgp30
vs mh-z19
vs mq135
vs bme680
vs mg811
vs ...

Pollution monitoring node - Use Cases - The Things Network

#help
#co2

333 - How to?

5. ledna 2018