Quality of air is very important, but it's not just air outside that is getting worse, sometimes air indoors can be even more dangerous. Today we will be making DIY eCO2 and VOC sensor and configuring it to work with Home Assistant.

Here are all the links needed for this sensor - ESPHome and also components itself:
- ESPHome repository link for hass.io
https://github.com/esphome/hassio
- Module page on ESPHome
https://esphome.io/components/sensor/ccs811.html
- ESPHome flasher
https://github.com/esphome/esphome-flasher
- Link to where I bought the sensor
https://www.aliexpress.com/item/32903358923.html
- Wemos D1 mini link
https://www.aliexpress.com/item/32633763949.html

00:00 Intro
00:24 Thank you to channel members
00:38 About sensor
02:54 Parts needed
04:03 Connecting everything
08:11 ESPHome installation (quick guide)
09:12 Creating basic configuration for Wemos D1 Mini
10:13 Configuring ccs811 sensors
14:42 baseline parameter
17:30 Compiling firmware
18:43 Download ESPHome Flasher
20:42 Verifying all is OK
21:08 Configuring HA integration
22:30 Adding to UI/Lovelace
23:30 Verifying what baseline is
25:33 Creating simple automation
27:39 Wrap-up

Here is my code for i2c and ccs811 - you may need to customise it:
i2c:
scl: D1
sda: D2
scan: True
sensor:
- platform: ccs811
eco2:
name: "CCS811 eCO2 Value"
tvoc:
name: "CCS811 Total Volatile Organic Compaund"
address: 0x5A
update_interval: 15s
# baseline: 0x0478

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Have fun!
BeardedTinker

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Twitter: @BeardedTinker
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#howto #HomeAssistant #ccs811 #co2 #voc