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Post by Powderjockey on Aug 13, 2018 19:06:32 GMT -8
I'm wondering how sensitive the sensor is to the forest fire smoke. I have left the sensor outside with only a bright green circle on the BC24. I have seen it go to the different shade of green, but rapidly changing back to the fresh air bright green. On one occasions I did get alight set of red LED's Not sure how well the image below shows the smoke, but it is in the tress in the neighbourhood.  |
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Post by SDL on Aug 14, 2018 16:11:22 GMT -8
Try reading the raw value by looking at the raw values coming off the value. Sounds like it might be a good thing to add the central OLED display and have it post the raw values on the screen.
Remember that "clean air" means that it is not above a threshold. I'll be the raw data is moving all over the place.
BP
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Post by Powderjockey on Aug 14, 2018 17:50:15 GMT -8
Try reading the raw value by looking at the raw values coming off the value. Sounds like it might be a good thing to add the central OLED display and have it post the raw values on the screen. Remember that "clean air" means that it is not above a threshold. I'll be the raw data is moving all over the place. BP I have an OLED attached, but have been able to get it to function yet. Not even a flashing cursor. Been trying to copy over some of the files from the BC24 Weather files, but haven't been able to get it to work. |
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Post by SDL on Aug 14, 2018 18:00:27 GMT -8
Boy, that would be a challenge moving over the code for the Weather station. Very complicated because of the dozen odd pages we have and the cycling.
I'd go back and look at the simple OLED examples with the Adafruit drivers (we put them in the sub directories) and build one of the examples there to just get a simple display working for your unit.
BP
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Post by Powderjockey on Aug 14, 2018 19:09:59 GMT -8
What are the dimensions of the OLED display that comes with the OurWeather kit?
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Post by SDL on Aug 15, 2018 7:56:36 GMT -8
128x64 pixels.
BP
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Post by Powderjockey on Aug 15, 2018 14:07:10 GMT -8
Was able to run an example under Adafruit_SS1306 and have the BC24 produce all green lights. Not sure if the Air sensor software was actually working tho. It didn't seem to fit the screen. It also locked up after several minutes.
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Post by SDL on Aug 16, 2018 9:17:14 GMT -8
Well, you are on the right track. Learn how to deal with the font size in the adafruit libraries next.
BP
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Post by Powderjockey on Aug 16, 2018 16:22:01 GMT -8
OK, I changed the screen size in the library file Adafriut_SSD1306.h. Seems to fit the screen just fine now.
I'll look at the fonts.
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Post by Powderjockey on Aug 17, 2018 7:30:04 GMT -8
Just ask what the difference is in your software calculations, in Canada, we use a totally different scale than what is being collected by the sensor. en.wikipedia.org/wiki/Air_Quality_Health_Index_(Canada) "AQI" Where I'm living, we are currently in a AQI of 9+ out of the 10, yet the sensor shows a bright green to a normal green on the BC24. Any thoughts? Could this be changed or is the sensor not made to pick up this type of air? |
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Post by SDL on Aug 18, 2018 12:38:52 GMT -8
Remember that this Air Quality sensor is picking up volatiles and not particulate counts.
We just got our new particulate sensors in house and I'm looking forward to hooking them up!
BP
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Post by Powderjockey on Aug 19, 2018 15:53:57 GMT -8
Remember that this Air Quality sensor is picking up volatiles and not particulate counts. We just got our new particulate sensors in house and I'm looking forward to hooking them up! BP Friday night the BC24 was solid bright red/dark red so it is picking up something.
Maybe i should give the new sensor ago!
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Post by SDL on Aug 20, 2018 12:56:53 GMT -8
I ran the new Dust Sensor (Particulates) this morning on an Arduino and got the following readings: Indoor: 684.0 Outdoor: 2893.0 At SwitchDoc Labs University: Indoor: 1450 or about that Indoor with Air-conditioning on: ~300 Numbers are: Concentration - Number of Particles - particle size over 1um. There is another pin which measures 2.5um and above. pcs/liter of air. Measures from 0~28,000 pcs/liter ![]() I'll move it to the Raspberry Pi in the next few days and will start doing Graphs. John   |
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Post by Powderjockey on Aug 20, 2018 15:54:02 GMT -8
Your sun looks very similar to ours!
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