We started this year working on a group project building circuit over another. We started with 2nd order low pass filter, built it , test it and got the result. Then we built 2nd order high pass filter, built it, test it and got the result. Then we combine the LPF & HPF to make a band pass filter, then test them and got the result as well. After we built 1st stage op amplifier and test to get the result, after we combined it with another op amp to make a 2nd stage amplifier, test it and got the result as well. Finally we combined all circuits together to have a complete circuit. The purpose is to measure our heart beat by touching two photodiodes, one works as a receiver and one as a sender. We touch them by putting our finger on them to see the response on oscilloscope, also we have LED at the end of the complete circuit. That LED should show some light on it whenever we touch those two photodiodes. Before that LED we two diodes which allow the light to pass through and reach to the LED.
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The kind of measurements we are taking are:
1- Simulation data using the Multisim.
2- experimental results using the necessary equipments such as oscilloscope, DMM etc.
3- Practical data using the Excel sheet which we put the date we got from the Simulation in Excel sheet as a table then do the graph for it. The same thing we do for the date that we got from the oscilloscope in excel sheet.
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After that we made a PCB board using the multisim and then ordered a breadboard to build the PCB on it which then we are going to test and take the results.
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Last thing we will do the FPGA. We are supposed to do the FPGA at the end which is still not yet done and I don’t have the data for it. We are supposed to find a code for a timer and counter with the Verilog then implement that using the Quartus then on the FPGA. IF possible, I want you to give an overview about how to do that using your own words and later when I get the data, I will add it my self.
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I spoke with my supervisor of what exactly he needs in the report. He said:
I want you to write anything you’ve done this year. Every stage you built, I want you to attach the photo of the circuit and put the results then talk about them. The same thing will be for every stage till we reached the final and complete circuit which you’ll also talk about. Then the PCB part etc till the end.
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