Plant irrigation system with solenoid valve

Posted on la 28 huhtikuu 2018 in Articles • Tagged with measuring, irrigation, gardening, electronics, embedded systems

Super simple automatic irrigation system can be made with normally closed solenoid valve.

valve

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Idea is to have water reservoir somewhere bit higher, so all needed for water …


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Measuring devices: Sextant

Posted on su 15 huhtikuu 2018 in Articles • Tagged with measuring, angles, mechanics, navigation

Sextant is used for measuring the angles between two ( far away ) objects.

cubes

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Sextants are quite simple but as they are really accurate measuring devices, one should always …


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