MH-Z19 CO2 sensor
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I know I'm resurrecting an ancient topic here...
How have these sensors worked? I need the ability to monitor CO2 and evacuate it when it get's too high. This isn't super mission critical stuff here but I would like to use a sensor like this to get a better idea of how much air I need to evacuate.
I'm looking at building something to interface with a MQTT broker to control other IoT devices on my hub. How hard would it be to add that capability to an arduino type solution like this one here?
I'm more familiar with RPi's but am interested in this because of the "simplicity".
Thanks!
Cheers,
Joe
-
I know I'm resurrecting an ancient topic here...
How have these sensors worked? I need the ability to monitor CO2 and evacuate it when it get's too high. This isn't super mission critical stuff here but I would like to use a sensor like this to get a better idea of how much air I need to evacuate.
I'm looking at building something to interface with a MQTT broker to control other IoT devices on my hub. How hard would it be to add that capability to an arduino type solution like this one here?
I'm more familiar with RPi's but am interested in this because of the "simplicity".
Thanks!
Cheers,
Joe
@Joseph-Gill My sensor has taken a few knocks but still works really well. I have got another one now to use in the car (when I get around MYSing the car that is).
The last readings from my sensor.....
Readings are high as the sensor is currently too low to the ground. I will attend to this when I have time to make it into a cased unit.
-
I know I'm resurrecting an ancient topic here...
How have these sensors worked? I need the ability to monitor CO2 and evacuate it when it get's too high. This isn't super mission critical stuff here but I would like to use a sensor like this to get a better idea of how much air I need to evacuate.
I'm looking at building something to interface with a MQTT broker to control other IoT devices on my hub. How hard would it be to add that capability to an arduino type solution like this one here?
I'm more familiar with RPi's but am interested in this because of the "simplicity".
Thanks!
Cheers,
Joe
@Joseph-Gill said in MH-Z19 CO2 sensor:
"simplicity"
Welcome to the forums, Joseph.
I am glad to see you put "simplicity" in quotes. Personally, I think that the level of difficulty that is portrayed towards new people (i.e., "it's easy!") is a little misleading. It is easy if you have "The Knack" but perhaps not so for everyone.
@Joseph-Gill said in MH-Z19 CO2 sensor:
How hard would it be
I think this depends mostly on an honest evaluation of your own skills. You will need to have at least basic understanding of the technologies involved: radio propagation, electronics, coding, etc...
Now, all of this can be learned of course, especially if you have interest, and time...
So another part of it is also your expectations. If you need something "right now" then you might be happier to go buy something "off the shelf."
OTOH, if you enjoy tinkering, learning, and want to eventually be able to build all different sort of devices exactly to your specifications and needs, then MySensors might be the right thing for you.
IMO, I think the best approach is to take this as a hobby, slowly acquiring parts (the least expensive ones take a long time to come from China!) as well as knowledge, and eventually increasing your capabilities over a long period of time. And you will learn (IMO) very valuable skills in the process...
