Air quality station
Posted: Mon 24 Aug 2020 8:46 am
Progress with another of my projects is steady but very slow, nevertheless I reached a point where I think I can publish what I want and where I am going.
Having a weather station makes one look at the atmosphere but also at what is IN the atmosphere. Especially where I live where smog conditions may occur, where chemical industry is not too far away and where farming of chicken, pigs and cows sometime creates unbearable breathing conditions (and no, that is not healthy outside agricultural air).
When I once called the environmental service, about (agricultural) industrial air pollution, they were unwilling to take the complaint and told me to jump in the car and look for the factory causing the pollution (yes, they did).
So, as a result I decided to make an environmental station beside the weather station. Progress is slow, buying stuff in China, corona, life and other things. But anyway... I wanted to use the RPi and program in C# to keep the development environment not too different. This made it difficult to select a library but finally I got somewhere: I now use RapberrySharp (which will soon become obsolete for another IoT library (with the same author cooperating).
The photo's show the basic setup: an SHT31 (i2c) and a PMS1003 particle sensor (serial) on breakout boards and the breadboard configuration.
The output is Cumulus-like in ascii as you can see: date/time, temperature, humidity, PM1, PM2.5, PM10 (standard particle) and PM1, PM2.5, PM10 (atmospheric).
Now looking for measuring analog gas sensors (which the RPi does not do standard) and an independent cheap outside solar power supply. All to be bought in China I assume, though some parts come from England, USA and the Netherlands. Probably all made in China
Don't expect follow-up soon
Having a weather station makes one look at the atmosphere but also at what is IN the atmosphere. Especially where I live where smog conditions may occur, where chemical industry is not too far away and where farming of chicken, pigs and cows sometime creates unbearable breathing conditions (and no, that is not healthy outside agricultural air).
When I once called the environmental service, about (agricultural) industrial air pollution, they were unwilling to take the complaint and told me to jump in the car and look for the factory causing the pollution (yes, they did).
So, as a result I decided to make an environmental station beside the weather station. Progress is slow, buying stuff in China, corona, life and other things. But anyway... I wanted to use the RPi and program in C# to keep the development environment not too different. This made it difficult to select a library but finally I got somewhere: I now use RapberrySharp (which will soon become obsolete for another IoT library (with the same author cooperating).
The photo's show the basic setup: an SHT31 (i2c) and a PMS1003 particle sensor (serial) on breakout boards and the breadboard configuration.
The output is Cumulus-like in ascii as you can see: date/time, temperature, humidity, PM1, PM2.5, PM10 (standard particle) and PM1, PM2.5, PM10 (atmospheric).
Now looking for measuring analog gas sensors (which the RPi does not do standard) and an independent cheap outside solar power supply. All to be bought in China I assume, though some parts come from England, USA and the Netherlands. Probably all made in China
Don't expect follow-up soon
