GMU:Speculative Atmospheres II/Nicolas Krewer: Difference between revisions

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Revision as of 12:08, 8 February 2022

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Krewern

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 [[File:WindThing.jpg|70vw]]
-==Background==
-Inspired by the yearly happening sisyphean task of sweeping leaves and get them blown away again by the wind.
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 To capture the wind speed and and the direction, a DIY anemometer is built. For both, photo interrupters are used. To measure the wind speed, a slotted disk is used to measure the amount of steps (on/off) in a certain time and then calculated to rpm, which will be send to control the speed of the fans. For capturing the direction, a rotary encoder is built with two photo interrupters and also a disk, that has eight on and eight off steps (for eight wind directions).
-The use of an Arduino Mega is necessary to provide enough digital inputs that support interrupts, but also enough outputs for the motor controller, the printer and the other sensors. For the fans, brushless motors are used, that are also very common in drones, e-bikes, etc. They are controlled with ESC motor drivers and powered by RC batteries, so the installation can stand independently from a power socket.
+The use of an Arduino Mega is necessary to provide enough digital inputs that support interrupts, but also enough outputs for the motor controllers. For the fans, brushless motors are used, that are also very common in drones, e-bikes, etc. They are controlled with ESC motor drivers and powered by RC batteries, so the installation can stand independently from a power socket.
 <gallery>
 File:ArduinoWiring.jpg
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 ==Conceptual and technical changes==
+During the process many aspecs have changed, e.g. from the use of computer fans it resulted that they are not precise yet not strong enough to blow away paper snippets. Then, at some point the project had too many layers and had to be simplified, so the process of printing information about air quality on receipt paper was too complicated to realise, but also to understand, so it had to be removed. At the same time it wouldn't contrubute much to the meaning.