Air Quality Sensor
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@hek about initial calibration, how would I do check if there is a value in the eeprom or not, and if not run an initial calibration ?
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Hi,
First of al I'm a novice in all of this. I can read some code but the whole arduino thing is new to me.I tried to get the MQ135 working on my uno with tearing apart the : https://github.com/empierre/arduino/blob/master/1.3/MQ135dgi.ino.
I tried to pull out the bits and parts to get a accurate reading on my serial monitor.It sometimes read 1 or 2, but most of the time it is 0.
Can it have something to do with it being mounted on its own PCB? (I ordered the one suggested in the store..)
Can someone help me out?Groetjes Mark
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Hi,
First of al I'm a novice in all of this. I can read some code but the whole arduino thing is new to me.I tried to get the MQ135 working on my uno with tearing apart the : https://github.com/empierre/arduino/blob/master/1.3/MQ135dgi.ino.
I tried to pull out the bits and parts to get a accurate reading on my serial monitor.It sometimes read 1 or 2, but most of the time it is 0.
Can it have something to do with it being mounted on its own PCB? (I ordered the one suggested in the store..)
Can someone help me out?Groetjes Mark
@Omemanti hello have you plugged it on the right pins, this is an analogic sensor to be plugged on A0, with 5V and GND pins. Don't wire the digital one, useless...
My minimal value is 53.. so not 0 or 1 hwich looks more like the digital output ;-)
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Hi,
Where can I find AirQuality1.xml?? (or all files related to this device if there are others then the .xml)01 09/03/14 13:46:53.685 ctrl_chr[31;1mDevice_LuaUPnP::LoadDeviceDoc can't load /etc/cmh-lu//D_AirQuality1.xmlctrl_chr[0m <0x2acc9000>
02 09/03/14 13:46:53.686 ctrl_chr[33;1mJobHandler_LuaUPnP::m_sMissingFile_set /etc/cmh-lu//D_AirQuality1.xmlctrl_chr[0m <0x2acc9000>Seems like if this file is missing it brakes the whole MySensors plugin.
All devices related to MySensors plugin are blank and nothing seems to update.
Deleting the device that use AirQuality.xml will make the rest work again.Help!!
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Hi,
Where can I find AirQuality1.xml?? (or all files related to this device if there are others then the .xml)01 09/03/14 13:46:53.685 ctrl_chr[31;1mDevice_LuaUPnP::LoadDeviceDoc can't load /etc/cmh-lu//D_AirQuality1.xmlctrl_chr[0m <0x2acc9000>
02 09/03/14 13:46:53.686 ctrl_chr[33;1mJobHandler_LuaUPnP::m_sMissingFile_set /etc/cmh-lu//D_AirQuality1.xmlctrl_chr[0m <0x2acc9000>Seems like if this file is missing it brakes the whole MySensors plugin.
All devices related to MySensors plugin are blank and nothing seems to update.
Deleting the device that use AirQuality.xml will make the rest work again.Help!!
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@hek
ahh, that's why I cant find it... no pressure from my side to get one done but maybe we should mention this little detail on the MySensors building page just as a heads up for others since there is a sketch published and all... -
I made a template but I'm unable to test it...
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@hek Here is a first list from the most commons:
- Carbon Monoxide – CO
- Carbon Dioxide – CO2
- Oxygen – O2
- Methane – CH4
- Hydrogen – H2
- Ammonia – NH3
- Isobutane – C4H10
- Ethanol – CH3CH2OH (aka C2H5OH or C2H60)
- Toluene – C6H5CH3
- Hydrogen Sulfide – H2S
- Nitrogen Dioxide – NO2
- Ozone – O3
- Hydrocarbons – VOC
- Chlorine CL2
- Ammonium NH4
- Ethanol CO2H50H
- Methyl CH3
- Acetone CH3_2CO
- LPG (both C3H8 C4H10)
@hek here is an updated list from the Wunder Weather list of reportable gases:
Carbon Monoxide – CO
Carbon Dioxide – CO2
Oxygen – O2
Methane – CH4
Hydrogen – H2
Ammonia – NH3
Isobutane – C4H10
Ethanol – CH3CH2OH (aka C2H5OH or C2H60)
Toluene – C6H5CH3
Hydrogen Sulfide – H2S
Nitrogen Dioxide – NO2
Ozone – O3
Hydrocarbons – VOC
Chlorine CL2
Ammonium NH4
Ethanol CO2H50H
Methyl CH3
Acetone CH3_2CO
LPG (both C3H8 C4H10)- NO - nitric oxide
- NOX - nitrogen oxides
- NO3 ion (nitrate, not adjusted for ammonium ion) UG/M3
- SO4 ion, sulfate, not adjusted for ammonium ion, UG/M3
- SO2 sulfur dioxide, ppb
- EC (elemental carbon) – PM2.5 UG/M3
- OC (organic carbon, not adjusted for oxygen and hydrogen) – PM2.5 UG/M3
- BC (black carbon at 880 nm) UG/M3
- UV-AETH (second channel of Aethalometer at 370 nm) UG/M3
- PM2.5 mass - UG/M3
- PM10 mass - PM10 mass
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@hek here is an updated list from the Wunder Weather list of reportable gases:
Carbon Monoxide – CO
Carbon Dioxide – CO2
Oxygen – O2
Methane – CH4
Hydrogen – H2
Ammonia – NH3
Isobutane – C4H10
Ethanol – CH3CH2OH (aka C2H5OH or C2H60)
Toluene – C6H5CH3
Hydrogen Sulfide – H2S
Nitrogen Dioxide – NO2
Ozone – O3
Hydrocarbons – VOC
Chlorine CL2
Ammonium NH4
Ethanol CO2H50H
Methyl CH3
Acetone CH3_2CO
LPG (both C3H8 C4H10)- NO - nitric oxide
- NOX - nitrogen oxides
- NO3 ion (nitrate, not adjusted for ammonium ion) UG/M3
- SO4 ion, sulfate, not adjusted for ammonium ion, UG/M3
- SO2 sulfur dioxide, ppb
- EC (elemental carbon) – PM2.5 UG/M3
- OC (organic carbon, not adjusted for oxygen and hydrogen) – PM2.5 UG/M3
- BC (black carbon at 880 nm) UG/M3
- UV-AETH (second channel of Aethalometer at 370 nm) UG/M3
- PM2.5 mass - UG/M3
- PM10 mass - PM10 mass
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@hek
ahh, that's why I cant find it... no pressure from my side to get one done but maybe we should mention this little detail on the MySensors building page just as a heads up for others since there is a sketch published and all... -
@Yveaux I know you are strong at finding datasheet... can you find one for me ? I can't find the 2SH12 sensor altgough I've asked for it to all suppliers on aliexpress...
Same for theWSP1110
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@Yveaux I know you are strong at finding datasheet... can you find one for me ? I can't find the 2SH12 sensor altgough I've asked for it to all suppliers on aliexpress...
Same for theWSP1110
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@epierre Couldn't find it either, sorry...
I wouldn't buy a $52,- component without a datasheet, if I were you... -
@Yveaux When I asked for the WSP110 they sent me only this (not the same for this one is HCHO and well documented...) :
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Davide answered me, lot of things to read but a warning:
Anyway, for consistent CO2 investigaion, you HAVE to chose a NDIR sensor, those chemical sensor can not be used. They decay in a few year, and they differs a little one from each other.I've asked him back for precision if he speaks of the organic sensor or the ceramic ones (like MQ...).
For the CO2, it is MH-Z14 which is $66+ priced.
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