In process to construct the full circuit, the first thing that need to do is construct the schematic diagram and PCB layout. To construct the schematic diagram, we need to use Multisim software. It used to see and ensure the connection is right. After done the schematic diagram, then we may convert the circuit into PCB by using the Diptrace software. The reason why we need to construct first the circuit by using multisim and diptrace software is because it can easier our work to see the circuit connection and troubleshoot it when it have an error connection. Here the figure of our PCB for Body Detector circuit.
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| The PCB layout from the bottom side view |
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| The PCB layout from the top side view |
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Both of this figure showed the circuit connection from top and bottom side view. By looking at the bottom layout, we may see the cooper connection and the components hole to solder. And by looking at the top layout, we may see the components symbols and position. So that, it may easy for us to solder the PCB. After done the PCB, then we may start etching the PCB board. The etching step is same as the previous step that i wrote at my previous post. We may use the same step to do the PCB.
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| The PCB board after done etching | |
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