Let’s continue with our project to have the shower water heated purely by the sun: Here are details on programming and for comfortable showering in the bathroom.
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Showering with the heat of the sun, Part 2: Self-made mobile solar hot water generator Operation of the hot water generator in practice Choice of container and shower comfort List of materials
How to build the sun trap and place it on a rotatable frame for optimal heat yield was the subject of the first part of the self-made solar thermal shower. Now it’s time for the electronics and programming.
I built the circuit according to the following diagram. Using a baseboard for the controller offers more plug-in options and saves soldering work.
Since I’m not an experienced programmer, I use the wide range of examples on the Internet and adapt them to my needs. The code (download) therefore largely consists of standard solutions. Therefore, in the following, I will only go into the most important adjustments for my purposes.
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