Homemade pellet burner automation based on Arduino nano

Hello everyone, dear friends. This article is not aimed at ardent programmers, cool circuit engineers and radio electronics engineers, therefore I ask you not to criticize strongly for the results.





Background

and here is the burner itself
and here is the burner itself

I live in an urban-type settlement, relatively recently we are settling in a new place of residence. And now, as it were, winter begins, and we heat the house with firewood in the old fashioned way. It was not my desire that prompted me to do it myself, since I was already fine, but my father. He decided to make a pellet burner. Everything would be fine, but when the body was already welded, the granules were purchased, the question remains how to start it all. A radical decision was made: the feed auger moves thanks to a wiper motor from VAZ, of which we have a lot, because we are repairing / disassembling a car, in which case it can be replaced with the same one without losing characteristics. But the blowing was carried out by a centrifugal fan of the stove from some Nissan, the breakdown of which is definitely not worth afraid. Collected, launched, but how to manage?





basic diagram for boiler combustion control
basic diagram for boiler combustion control

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Typical system water temperature
Arduino nano v3
Arduino nano v3

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all the necessary components
:
  1. - Arduino Nano





  2. L298N





  3. 4.7





  4. SSR 40 DA





  5. 1602 I2C





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test build

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Diagram made by my crooked pens
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final build

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schema, code and libraries <---








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