{"id":659,"date":"2020-10-24T16:44:35","date_gmt":"2020-10-24T14:44:35","guid":{"rendered":"https:\/\/outpost.garf.de\/wordpress\/?p=659"},"modified":"2020-11-15T20:57:37","modified_gmt":"2020-11-15T19:57:37","slug":"making-stuff-co2-monitor","status":"publish","type":"post","link":"https:\/\/outpost.garf.de\/wordpress\/index.php\/2020\/10\/24\/making-stuff-co2-monitor\/","title":{"rendered":"Making stuff: CO2 monitor"},"content":{"rendered":"

If you have read my blog and my postings on Facebook<\/a> for a while you know that one of my hobbies is to play around with microcontrollers. I built environmental sensors <\/a>for my house and also two solar powered weather stations<\/a> for outside. <\/p>\n\n\n\n

One of my inhouse sensors is already monitoring fine dust levels and also „air quality“ (what the BME680<\/a> sensor reports, to be honest, I have no real clue what it actually monitors). With the current discussions about increasing air quality for the purpose of lowering infection risk by monitoring inhouse CO2 levels, I decided to test one of the cheap CO2 sensors and build myself a CO2 monitor.<\/p>\n\n\n\n

Since I did not want to spend too much money on my very first attempt I decided for a cheap CCS811 sensor which I ordered directly in China (no complaints about „buying local“ here please – these sensors are manufactured in China and everybody selling them here locally are also just importing them). As a plaform I used my own ESP8266 based sensor node<\/a> I also use for inhouse environmental monitoring. I still had some PCBs and other stuff laying around. <\/p>\n\n\n\n

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Hardware<\/h2>\n\n\n\n

You can get all that from the usual places.<\/p>\n\n\n\n