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Final Project Write up

     For our final project, Henry and I, made a spy camera with a raspberry pi. We choose to use a raspberry pi zero because it has built in wi-fi.        The first things we had to do was the make a voltage regulator and case for the components. The pi operates at 5 volts over USB but we used 4 AA batteries in a pack. With a linear voltage regulator and two 22uf capacitors we were able to lower the 6 volts to 5. We then soldered in the lines to the VCC pin of the pi as well as the ground pin. The holder was made to secure the board with the voltage regulator under the pi.       To get the camera working, we utilized the built in pi command raspistill. The command is raspistill -o #name_of_file.jpg. We wanted to make sure the file wouldn't be overwritten with each photo so we also implemented a simple bash script that makes a time stamp for the make and appends that to the filename. DATE = $ ( date + "%Y-%m-%d_%H%M" raspistill - v...
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Current Leakage

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Current Leakage Objective Calculations Measurements Conclusion Objective    The purpose of this lab was to investigate the rate of current leakage in a RC circuit. Calculations     Measurements        The data was processed in a google drive sheet. We would isolate, as closely as possible, the decay of the voltage in the circuit and disregard the steady state we had while charging.  Part A Part B Part C         Conclusion The estimate of Tau is  1/.0431 when the voltage is in the proper polarity of the cap and 1/.0432  when the voltage is opposite polarity of the cap. I know the lab was supposed to show how the tau was different between the two conditions. What we got was a very slight difference.. Perhaps there was some confounding variable in the experiment. My first guess is to say the lower 5 volts was too small to see a large c...
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Nodal Analysis

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Nodal Analysis pt i,ii, & iii Objective Procedure Calculations Measurements Conclusion Objective          The objective of this lab was to compare the theoretical values of our mesh analysis vs the  measurements of a specific circuit. In place of a single 20k resistor, two 10k resistors were run in series. Procedure        There were three different circuits to be setup        pt.1 \        Part one required a measurement across the 6.8k and the 20k resistor.        pt.2        Part two required voltage measurement across the 6.8 k resistor as well as the current through the branch.     pt.3         Part three required a measurement across the voltage across the 20k resistor as well as the current though that branch. Calculations pt.1 V1 = 2.2 V V2 = 4.4 V Pt.2...
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Mesh Analysis

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Mesh  Analysis pt i,ii, & iii Objective Procedure Calculations Measurements Conclusion Objective          The objective of this lab was to compare the theoretical values of our mesh analysis vs the  measurements of a specific circuit. In place of a single 20k resistor, two 10k resistors were run in series. Procedure        There were three different circuits to be setup        pt.1        Part one required a measurement across the 6.8k and the 20k resistor.        pt.2        Part two required voltage measurement across the 6.8 k resistor as well as the current through the branch.     pt.3         Part three required a measurement across the voltage across the 20k resistor as well as the current though that branch. Calculations      *Each circuit was...
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Thevenin's Theorem

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Title Objective Calculations Measurements Conclusion PreLab         This lab will demonstrate thevenin's theorem by actually constructing and then replacing parts of a circuit.        This is where we're staring My version Calculations   V open circuit: .3 volts Measurements     Resitors Value therory(kΩ) measured(kΩ) 1 1.1 1.5 1.7 2.2 2.1 4.7 4.6 6.8 6.6 6.8 6.7 R thevinen therory(kΩ) measured(kΩ) 7.4 7.6 V open Circuit therory(V) measured(V) 0.5 0.3       Thevinen Error Voltage -33.33% Resistance 2.27% Thevenin Circuit Conclusion       
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Capacitor Voltage-Current Relations

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Capacitor Voltage-Current Relations Objective Calculations Measurements Conclusion Objective  This will be an experiment into the current flow and voltage on a capacitor in series with a resistor. The circuit of interest is as follows. The resistor value is 100 ohms and the cap is 1 uF. We will then be applying different types of waves to the circuit and using that to This is a version I put on  a breadboard. Calculations     Measurements Part A Part B Part C         Conclusion       
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The PreFinal Op-Amp Jamboree

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Objective: We conststructed 4 different op amp circuits from which we had encountered during the class. The first was the voltage follower with the added twist of a 10 Mega-ohm resistor in line with the voltage input. Second we constructed an inverting op amp. Third we put together a non inverting op amp. Lastly we made a summation circuit. for simplicity's sake I choose to use resistors as close to 6.6k as I could find. The Voltage Follower        Here we can see what is to be expected. In order for the voltage difference between the positive and negative terminal to be approximately zero the negative terminal is also the 2 volts. The V out tied, via a short, to the negative terminal means it is also a 2 volts and thus we achieve the voltage follower.         I also applied a DC source to the circuit so it would be easier to tell that the circuit was working. I did this one without the larger resistor in line of the voltage. ...
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