Homemade Flashlight

     Throughout the months of October and November Mr. Grosinger, of Memorial High School, assigned a very unique project to my Green Technology class. The project was to make a penny battery that will light up an LED and then make a homemade flashlight that will survive a five-foot drop and continue to work.

 
      The picture above shows the start of my project which is shaving pennies, that are were made recently, because in order to make the penny battery you will need zinc and copper, and the pennies above include both in order to save materials.


     This picture displays the different types of oxidation because the pennies wont work if there is oxidation of the zinc or copper side. A good way to get rid of oxidation is to wash it with vinegar and file it down with sandpaper. 


     This picture shows my penny battery placed in side where it says "Penny Battery" and a voltmeter next to it showing the volts that my battery creates which measures 0.755 volts.


     The picture above displays me adding more pennies therefore increasing the amount of volts that will come out of the battery, in this case 1.3 volts.

     I continued to add layers of pennies to get a greater measurement of volts. In this case I did and I got a measurement of 2.24 volts.



     The picture above displays me shaving even more pennies with a file in order to get the the desired amount of volts, which is anywhere greater than 3.00 volts but not too many or else the LED will be overpowered and explode.



     The pictures above display my penny battery not only reaching 3.29 volts but also lighting up a LED which means that my battery works and can be used for a flashlight.


     After I reached the first goal which was to make a penny battery that will power a LED, and now the second goal was to make a complete circuit with a switch. 


     In order to complete the circuit needed to learn soldering which will allow me attach wires to wires, wires to the legs of the LED, and wires to the battery, which will continue the circuit.


     The picture above displays two wires that I soldered together in order to make a longer wires just in case that I needed it in the circuit.


     This picture is a diagram that shows how a series will have the amount of volts of all the batteries added together, while when parallel it will have the same as one.


     
     The picture above displays another diagram that shows how we have to tape the wires in order to get a different pivot point other than the LED light legs that wil break off easily and disrupt the circuit.

  
     This picture shows a soldered wire soldered to a leg of the LED to start the circuit.


     The picture above includes my wired needed for the circuit with electrical tape along the points where the wire was soldered to either other wires, the LED, or the battery to protect it.


     The picture above displays my circuit being completed with the battery, LED, and the switch will allow me to turn the LED on and off at anytime I want, putting me in control of the circuit.


     The picture above shows my flashlight project being turned on and placed on a display that Mr. G made for the deadline date.


     The picture above shows my final project which is the completed flashlight in a container that will be dropped from five feet and still be functional with being able to be turned on an off.

https://photos.app.goo.gl/FWcgoJterjVctygN2

     The video linked above will take you to the video I made for the five foot drop. It shows my flashlight being dropped from five feet, hitting the floor, and fully functional after the drop which means that my project was a success. 





























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