Thierry Joubert's blog

From the monthly archives: August 2017

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Azure Watering system ready to go...

My watering system monitored withAzure is now fully operational for three plants.

The connected computer is an Educake from ICOP, it measures three sensors and is able to pump water individually in each pot.
   

The system is connected to a timer socket progammed to wake up once a day. The information reported to Azure by the Educake contains humidity and watering time for each pot.

This configuration has been running for a week and Azure data allows me to calibrate the watering parameters. Unplanted sensor (dry) gives a 1024 value, and fully dipped sensor gives a 400 value.
As I'm checking humidity, I decide to reverse the scale : 600 = watered - 0 = dry, one week of recording shows the following graph:

Now Let's go to vacation!...

Plant Watering System monitored with Azure

Before my summer vacations, I decided to build a watering system for my decorative trees. The soil moisture is measured with a cheap IoT sensor and the water supply uses 12V airpumps pushing air in water bottles (this makes a safe separation between electric and water circuits), the electronic schema is as follows:

The 86Duino Educake computer monitors the humidity level once a day and will pump water if the level is too low, it sends data to Azure therefore I'll be able to see how things are going on...

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