Saw a new 7-in-1 sensor made in China. Looks really interesting.
SM300D2 7-in-1 PM2.5 + PM10 + Temperature + Humidity + CO2 + eCO2 + TVOC sensor
https://banggood.app.link/mwH2OrapKcb
Does anbody know if this is being developed? Or how I can develop it myself?
Sm300d2?
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Re: Sm300d2?
The "CO2" mentioned here is not a true CO2 sensor.
It is similar to the CCS811, which does measure VOC (Volatile Organic Compound) which is some kind of indication of gasses also exhailed by people.
But do not think this is a true CO2 sensor.
So perhaps it is more useful to use a PlanTower sensor (PMSx003) or SDS011 for fine dust particle measurement, BME280 (or one of the many other supported temp/hum sensors) and a CCS811 (often sold on boards with the HDC1080 temp/hum sensor) if you can live with the VOC measurements.
If you want to record CO2 concentration, you should use a SenseAir S8 or MH-Z19. (S8 is preferred)
It is similar to the CCS811, which does measure VOC (Volatile Organic Compound) which is some kind of indication of gasses also exhailed by people.
But do not think this is a true CO2 sensor.
So perhaps it is more useful to use a PlanTower sensor (PMSx003) or SDS011 for fine dust particle measurement, BME280 (or one of the many other supported temp/hum sensors) and a CCS811 (often sold on boards with the HDC1080 temp/hum sensor) if you can live with the VOC measurements.
If you want to record CO2 concentration, you should use a SenseAir S8 or MH-Z19. (S8 is preferred)
Re: Sm300d2?
Hi Henkeg, welcome to the forum 
Hm, IMHO, that sensor-module has a few disadvantages:
- (major) All in one module: If 1 component fails the entire module has to be replaced
- It is rather costly, compared to other (separate) modules
- (minor) The connection for fetching the measurements is serial, which is a bit inconvenient, as you can't use the serial log of an ESP to monitor the device
You are of course welcome to develop a plugin for it, the latest source is at https://github.com/letscontrolit/ESPEasy, you can clone that to your own Github account, clone that to your local system, set up your local development environment, as described here: https://espeasy.readthedocs.io/en/lates ... ormIO.html (Preferred/advised toolchain: PlatformIO / VSCode), and look at other plugins how they are built (there is a template included where you can start a new plugin from, _Pxxx_PluginTemplate.ino). Any development experience with Arduino and/or C/C++ is quite helpful/probably required.
Hm, IMHO, that sensor-module has a few disadvantages:
- (major) All in one module: If 1 component fails the entire module has to be replaced
- It is rather costly, compared to other (separate) modules
- (minor) The connection for fetching the measurements is serial, which is a bit inconvenient, as you can't use the serial log of an ESP to monitor the device
You are of course welcome to develop a plugin for it, the latest source is at https://github.com/letscontrolit/ESPEasy, you can clone that to your own Github account, clone that to your local system, set up your local development environment, as described here: https://espeasy.readthedocs.io/en/lates ... ormIO.html (Preferred/advised toolchain: PlatformIO / VSCode), and look at other plugins how they are built (there is a template included where you can start a new plugin from, _Pxxx_PluginTemplate.ino). Any development experience with Arduino and/or C/C++ is quite helpful/probably required.
/Ton (PayPal.me)
Re: Sm300d2?
Thanks for the prompt reply.
Good points!
I will look at the senseair s8 instead. Will save my development efforts to a sensor that makes sense
Good points!
I will look at the senseair s8 instead. Will save my development efforts to a sensor that makes sense
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