======= Introduction =======
This will be a wifi-enabled environment monitoring station packed to the brim with sensors to collect and upload data on either an indoor or outdoor environment to a LAN server.

===== What should it measure? =====
The station will collect readings on the following:
  * Temperature
  * Relative humidity
  * Barometric pressure
  * TVOC //(total volatile organic compound)//
  * CO2 //(carbon-dioxide)//
  * UV Index 
  * Sound Levels
====== To-Do ======
  * Add pads for programming
  * Double check connections for boot up selection
  * research EMC compliance for ACMA
    * https://www.emctech.com.au/beginners-guide-emc-compliance-australia/
    * https://www.interconnectsystems.com/product-news/your-guide-to-emc-compliance-in-australia/
    * https://www.emctech.com.au/radio-wireless-testing/
    * https://www.emctech.com.au/rcm-testing/
    * https://www.emctech.com.au/faq/

====== Notes ======
The RCM certification indicates a product complies with all applicable Australian regulatory requirements. 
The regulatory requirements include, Electrical Safety, EMC (Electromagnetic Compatibility), EMR (Electromagnetic Radiation) and Radio communications. [Source: https://www.emctech.com.au/rcm-testing/]

As a low-powered WiFi-enabled product, it would be considered a radiocommunications compliance level 1 device and thus, it would have to comply with the "Radiocommunications (Short Range Devices) Standard 2014".
[Source: https://www.acma.gov.au/Industry/Suppliers/Product-supply-and-compliance/Commonly-supplied-equipment/wi-fi-bluetooth-and-other-low-powered-radiocommunications-transmitters]


RCM testing would cost around $1500 to several thousand dollars.
[Source: https://www.emctech.com.au/faq/]

====== Sensors ====== 
  * CCS811
    * [[https://cdn.sparkfun.com/assets/learn_tutorials/1/4/3/CCS811_Datasheet-DS000459.pdf|Datasheet]]
    * https://github.com/maarten-pennings/CCS811/issues/8
  * VEML6075
    * http://www.vishay.com/docs/84304/veml6075.pdf
  * MH-Z19?
    * https://www.circuits.dk/testing-mh-z19-ndir-co2-sensor-module/
    * https://atomstar.tweakblogs.net/blog/17086/measuring-co2-using-mh-z19b-and-d1-mini-pro
    * https://github.com/letscontrolit/ESPEasy/issues/466
    * http://www.guillier.org/blog/2017/09/co2humiditytemperature-sensor/
  * HDC1080?
    * http://www.ti.com/lit/ds/symlink/hdc1080.pdf
    * Temp+RH
  * BMP180
    * https://cdn-shop.adafruit.com/datasheets/BST-BMP180-DS000-09.pdf
    * Bar Pressure
  * SDS011?
  * SPH0645 
    * https://cdn-shop.adafruit.com/product-files/3421/i2S+Datasheet.PDF
  * PMS5003 ?
    * http://www.aqmd.gov/docs/default-source/aq-spec/resources-page/plantower-pms5003-manual_v2-3.pdf
  * PMS7003 
  * AOS3729A 
    * https://datasheet.lcsc.com/szlcsc/1812121637_SANICO-AOS3729A-T42-NXC_C338759.pdf



https://www.wmo.int/pages/prog/arep/gaw/documents/Draft_low_cost_sensors.pdf \\
https://shop.pimoroni.com/products/enviro-plus \\
https://www.scientevents.com/proscience/download/potential-and-limitations-of-the-low-cost-sds011-particle-sensor-for-monitoring-urban-air-quality/ \\
https://www.researchgate.net/publication/325416608_Suitability_of_the_Low-Cost_SDS011_Particle_Sensor_for_Urban_PM-Monitoring \\
https://www.cron.dk/home-environment-part-2/ \\
https://github.com/homieiot/homie-esp8266 \\
https://aqicn.org/sensor/ \\
https://github.com/kawaiipantsu/wifidbmeter \\
http://embedded-lab.com/blog/making-a-spl-db-meter/ \\
https://github.com/joextodd/listener \\

https://github.com/esp8266/Arduino/blob/master/libraries/esp8266/examples/I2SInput/I2SInput.ino \\
https://www.esp32.com/viewtopic.php?t=4997 \\
http://www.robinscheibler.org/2017/12/12/esp32-fft.html \\
https://github.com/maspetsberger/esp32-i2s-mems \\
http://www.robinscheibler.org/2017/12/12/esp32-fft.html \\
https://shop.pimoroni.com/products/enviro-plus \\
https://github.com/earlephilhower/ESP8266Audio/issues/70\\

https://shepherdingelectrons.blogspot.com/2018/09/esp8266-minimum-i2s-code.html \\
https://hackaday.com/2019/04/18/all-you-need-to-know-about-i2s/ \\
https://esphome.io/components/i2c.html \\
https://www.reddit.com/r/arduino/comments/6amv0y/so_what_sensor_has_very_accurate_very_precise/ \\
https://www.kandrsmith.org/RJS/Misc/Hygrometers/absolutetemperature.html \\
https://electronics.stackexchange.com/questions/332338/pms5003-connector-type \\
https://romkey.com/2018/11/06/found-plantower-pms3003-pms5003-pms7003-connectors/ \\
https://github.com/less-smog/ESP8266-AirQuality/wiki/Plantower-PMS5003 \\
https://publiclab.org/notes/guolivar/01-08-2018/thoughts-on-low-cost-air-quality-sensors \\\
https://publiclab.org/questions/samr/04-07-2019/how-to-interpret-pms5003-sensor-values \\
https://www.hindawi.com/journals/js/2018/5096540/ \\
https://hackaday.io/project/147459-less-smogorg \\
http://embedded-lab.com/blog/making-a-spl-db-meter/ \\
https://circuits4you.com/2018/12/31/esp32-hardware-serial2-example/ \\

https://randomnerdtutorials.com/esp32-pinout-reference-gpios/ \\
====== Components ======
{{tablelayout?rowsHeaderSource=Auto&colwidth="Auto"}}
^ Components    ^ Source  ^ Price  ^
| HDC1080       |         |        |
| BMP180        |         |        |
| ESP-WROOM-32  |         |        |
| HT7833        |         |        |
| PMS5003       |         |        |
| CCS811B       |         |        |