91–100 of 124 posts
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I'm having trouble recounciling that with the study that shows cognitive decline, can you explain your wife's thinking?
Maybe it means that if you are _always_ exposed to high CO2 your body adjusts, but if you are sporadically exposed it does not? Kind of like living in the mountains vs going there occasionally
Only true if adjustment isn’t giving up higher functioning of the body for a less efficient metabolism.
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What's particular about these sensors? I've been researching technologies to monitor plant growth and haven't yet looked into CO2 sensors, hence my asking. Do they come in an IC package?
They use optical measurement, are reasonable in pricing. Outputs are UART, PWM and analoge. They have pins with 2.54mm spacing if that helps you.
I would have just had the CO2 level read via a $8 I2C device connected to an Esp8266/Esp32 running Arduino. I would post the result to a web service in this fashion from the Esp8266: https://techtutorialsx.com/2016/07/21/esp8266-post-requests/ Then just setup a nice Graphana+Prometheus as a service, graphana.com is nice and can expose a Prometheus end point over basic http auth - easy to post to. Then you can setup a…
Would you be able to share where you might get such a cheap CO2 sensor/the name of it? I've had trouble finding them for less than £60 in the UK and would like to set one up.
I would have just had the CO2 level read via a $8 I2C device connected to an Esp8266/Esp32 running Arduino. I would post the result to a web service in this fashion from the Esp8266: https://techtutorialsx.com/2016/07/21/esp8266-post-requests/ Then just setup a nice Graphana+Prometheus as a service, graphana.com is nice and can expose a Prometheus end point over basic http auth - easy to post to. Then you can setup a…
Slight aside, anyone know why all the supposedly iot-oriented small arduino devices are IPv4-only? Is everyone deploying them in some kind of NATs + port forwards / upnp system or tunneled overlay IPv4 network using external gateway devices?
esp8266-nonos-sdk/esp8266-rtos-sdk/esp8266-arduino uses lwip as tcp/ip stack, which supports ipv6.
I got one and it's pretty cool. A bit of a game to get a high score.
Why are there steps in the CO2 levels?
Since this is based on a reverse-engineered binary protocol and since the step sizes are reasonably close to 64 and 128, I'd guess it's a bug.
https://www.co2meter.com/products/co2mini-co2-indoor-air-qua...
I wanted to do this in my office and was told, "if we find out something is wrong then we'd have to fix it." facepalm
Whats wrong with this one? (it works with the same device) https://github.com/larsp/co2monitor
That looks good as well! I actually didn't know about that project. It wouldn't have worked on my specific case though since I wanted it connected to my Mac, that tool only works on Linux.
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That looks good as well! I actually didn't know about that project. It wouldn't have worked on my specific case though since I wanted it connected to my Mac, that tool only works on Linux.
The Mac doesn't provide a device to read from? Because beyond that, it should be pretty similar (posix-ish and golang)?