minor corrections
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README.md
27
README.md
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@ -18,19 +18,20 @@ higher concentrations of CO2 inside will make you sleepy and have an impact on y
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## build
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just solder everything according to the connection schema.
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get yourself a copy of esphome (https://esphome.io/) and compile the firmware with 'co2ampel=USER_ROOMesphome co2sensor.yaml run' (replace user with a nick that identifies you or your organisation and room with the place the sensor is located at - these will be used for online graphing!)
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hold boot on your esp32 until fw upload starts.
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* solder everything according to the connection schema
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* get yourself a copy of esphome (https://esphome.io/)
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* compile the firmware with ```co2ampel=USER_ROOMesphome co2sensor.yaml run``` (replace user with a nick that identifies you or your organisation and room with the place the sensor is located at - these will be used for online graphing!)
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* hold boot on your esp32 until fw upload starts.
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## setup
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place the sensor in your room, keep it away from direct exposure of breath (give it at least 1-2m distance to humans or other co2 sources to get the average co2 level of the room)
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when there is a freifunk wifi around there is nothing to do for you, same when you defined your own wifi via secrets.yaml.
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else just wait a bit and the sensor will spawn an wifi without a password. connect with your phone and choose to login or open http://192.168.4.1 in a browser to enter your wifi credentials
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when everything is done, the default config will send the sensor readings back to the project where you can view online graphs (see grafana)
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* place the sensor in your room, keep it away from direct exposure of breath (give it at least 1-2m distance to humans or other co2 sources to get the average co2 level of the room)
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* when there is a freifunk wifi around there is nothing to do for you, same when you defined your own wifi via secrets.yaml.
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* else just wait a bit and the sensor will spawn an wifi without a password. connect with your phone and choose to login or open http://192.168.4.1 in a browser to enter your wifi credentials
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* when everything is done, the default config will send the sensor readings back to the project where you can view online graphs (see grafana)
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## grafana
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there is a quick setup on http://co2.cyber23.de:3000/d/1axlpIdGk/co2?orgId=1&refresh=10s your sensor should apper in the list as soon it has wifi
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there is a quick setup on http://co2.cyber23.de:3000/d/1axlpIdGk/co2?orgId=1&refresh=10s your sensor should apper in the list on the left as soon it is connected via wifi
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### schema
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@ -69,13 +70,13 @@ either way it might be a good idea to have a capacitor between VCC and GND. my p
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| 400 ppm | none | no | more or less the baseline of the sensor hardware and means 'fresh air quality' |
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| 400-800ppm | none | no | safe zone and can be considered good air quality |
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| 800-1500ppm | yellow | no | warning zone (consider to open windows) and is between medium and bad air quality |
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| > 1500ppm | red | yes | bad air quality, ppl in the room will be affected in a negative way |
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| > 1500ppm | red + blink | no | bad air quality, ppl in the room will be affected in a negative way |
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## todo
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* cooldown time for buzzer (alarm only once every n minutes) -> lambda/interval/on_time?
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* add openings for mh-z19 to the case
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* adjust light tunnel to use frosted acrylic glass
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* add a silent switch for meeting rooms and such (no buzzer, but flash at a regular interval to attract attention)
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- [ ] cooldown time for buzzer (alarm only once every n minutes) -> lambda/interval/on_time?
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- [x] add openings for mh-z19 to the case
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- [x] adjust light tunnel to use frosted acrylic glass
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- [ ] add a silent switch for meeting rooms and such (no buzzer, but flash at a regular interval to attract attention)
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