EPS@ISEP | The European Project Semester (EPS) at ISEP

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report [2022/06/21 20:43] – [7.8 Test & Results] team4report [2023/11/21 12:24] (current) – [2.5 Fish & Algae Symbiosis] epsatisep
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 The principle of the process is that bacteria convert fish waste into food for the algae. The algae feed on it and purify the water. Fish waste can be turned into plant food through the process of the "nitrogen cycle": the fish waste contains ammonia (which cannot be absorbed by the fish, as it is toxic) and the bacteria turn the ammonia into nitrate. The principle of the process is that bacteria convert fish waste into food for the algae. The algae feed on it and purify the water. Fish waste can be turned into plant food through the process of the "nitrogen cycle": the fish waste contains ammonia (which cannot be absorbed by the fish, as it is toxic) and the bacteria turn the ammonia into nitrate.
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-Figure {{ref>flabel5}} displays a illustration of the internal flow in an aquaponic system. 
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 Figure {{ref>flabel5}} displays a illustration of the internal flow in an aquaponic system. Figure {{ref>flabel5}} displays a illustration of the internal flow in an aquaponic system.
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 == - Modified circuit diagram == == - Modified circuit diagram ==
-Due to the components finally provided, the schematic of the prototype had to be adapted during the development process. The final circuit diagram is now shown in Figure Figure {{ref>flabel36}}.\\ +Due to the components finally provided, the schematic of the prototype had to be adapted during the development process. The final circuit diagram is now shown in Figure {{ref>flabel36}}.\\ 
 Compared to the preliminary circuit diagram, the connection between the relay and the power supply for the pump and the LED has changed significantly. Since the pump received cannot be operated with 12V as initially planned, but now requires 230V, the light and pump can no longer be operated with the same voltage source. For this reason, it no longer makes sense to control the LED using the relay. However, as the LED RGB driver can also be controlled directly via signals using the microcontroller, this is not a major problem. The pump is still switched via the relay.\\ Compared to the preliminary circuit diagram, the connection between the relay and the power supply for the pump and the LED has changed significantly. Since the pump received cannot be operated with 12V as initially planned, but now requires 230V, the light and pump can no longer be operated with the same voltage source. For this reason, it no longer makes sense to control the LED using the relay. However, as the LED RGB driver can also be controlled directly via signals using the microcontroller, this is not a major problem. The pump is still switched via the relay.\\
 However, a problem has developed as a result of the integration of high voltages due to the operation of the pump and the fact that the components are located close to each other. The switching and data transmission of the surrounding parts is influenced by the high voltage of 230V and thus no longer reacts according to the programmed commands. To counteract this problem, two 10kΩ resistors and a 47 μF 50 V electrolytic capacitor were used.\\ However, a problem has developed as a result of the integration of high voltages due to the operation of the pump and the fact that the components are located close to each other. The switching and data transmission of the surrounding parts is influenced by the high voltage of 230V and thus no longer reacts according to the programmed commands. To counteract this problem, two 10kΩ resistors and a 47 μF 50 V electrolytic capacitor were used.\\

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