In 2011, there was a hobby-project "Public Monitoring" narodmon.ru, Originally intended for display on the temperature map, transmitted homemade devices that were set to attend.
Now the service tens of thousands of connected devices worldwide that transmit data on the temperature, humidity, atmospheric pressure, radiation level, air pollution, and other parameters.
In addition, support can be used for personal monitoring (e.g., to control the temperature in the country or the mains voltage).
In the vicinity of Moscow and enthusiasts who are connected to the People monitoring hundreds of temperature sensors work, humidity and atmospheric pressure.
Radiation sensors are only six, but too bad.
For each sensor, you can view statistics, including over a long period. Here, for example, the temperature graph in the last five years in one of the sensors in the center of Moscow. It turns out that the lowest temperature of -26.11 ° was in January 2017.
The "national monitoring" can be connected not only sensors but also the camera. With these displays still pictures with a maximum resolution of 1280x720 pixels. Chambers until a little bit.
The project has a mobile app that is easy to use, instead of the thermometer outside the window - on the first screen it shows data from nearby sensors.
To take part in the project, you can build a simple web thermometer, which will consist of only two cheap ingredients that are sold on Aliexpress: microcomputer NodeMCU for $ 2.48 and digital DS18B20 temperature sensor for $ 1. You can still buy housing for $ 1.47. Such a thermometer together with the housing will cost less than 500 rubles. It will transmit data over Wi-Fi and is powered by any phone charging connector MicroUSB.
To learn how to assemble a thermometer and pour into it the firmware, see this video.
https://www.youtube.com/watch? v = _MEWkviEMKY
You can be bought ready meteomodul transmitting on the "National monitoring" data on temperature, humidity and atmospheric pressure. It will cost 1000 rubles (850 r module 150 r shipping),
His meteomodul, connected to a "People's Monitoring" will benefit as a whole, and the owner himself (statistics, charts on your personal unit).
And now the fun. Remember, I was thinking how to make monitoring to give ( https://ammo1.livejournal.com/1057616.html)? Then I totally forgot about the "People's monitoring" and no one suggested, and this is one of the simplest solutions for such purposes. Data from its sensors can not stand for all to see and use on their own. This will and cloud access, and application, and statistics, and graphics. In addition to climatic parameters, service support, and many other parameters, such as voltage, current, energy, illumination, reading water meters and electricity. Your camera connected to the service can also be used for personal purposes, without having to open them all.
P.S. It will be necessary to build a weather station and connect to the "People's Monitoring" and yet the camera on the balcony to hang up - I have a great view.
© 2019 Alex Nadozhin
The main theme of my blog - Equipment for human life. I write reviews, share experiences, talk about all sorts of interesting things. My second project - lamptest.ru. I test LED lamps and help figure out which ones are good and which are not.