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=Radioshack Electronics Learning Lab Collaborative Lab Reports=

Group Members' Names: Joshua Kennedy, Brittany Walker Group Name:

Write in third person in all cases as well as in complete sentences.

Template for entry (Copy the template below exactly!)

LED flasher Circuit
- Function of the circuit: The function of the circuit is to make the LED flash repeatedly.

- Components used in the circuit (listing with basic definitions): Wires- The wires connect the flow of the electricity to the LED LED- An LED stands for Light Emitting Diode Capacitor- The capacitors store energy and then lets it out when it is full to give the energy to whatever needs it Resistors- The resistors resist the current so there isn't too much current to give to the LED 555- A 555 is a type of integrated circuit, made of small diodes, transistors, and other small stuff. Circuit Board- A circuit board is able to hook up wires to it to connect it to the LED

- Explanation of difficulties encountered while creating the circuit: The difficulties encountered while creating the circuit are that the holes are so small it is hard to see where they go and it is hard to find the small resistors. Also there are so many ways to mess up, and you have to troubleshoot it afterward.

- Multimedia (Images, Interviews, Videos- make sure to title and number them) Picture 1: Complete LED Board Circuit

media type="custom" key="539821" Video 1: LED Flasher Interview

555 circuit
- Function of the circuit: The function of the circuit is to make the buzzer and the speaker buzz and speak.

- Components used in the circuit (listing with basic definitions): Speaker- The speaker makes noise Buzzer- The buzzer buzzes Wires- The wires connect the flow of the electricity to the speaker and buzzer Capacitor- The Capacitors stores energy and then lets it out when it is full to give the energy to whatever needs it Resistors- The resistors resist the current so there isn't too much current to give to the speaker and buzzer 555- A 555 is a type of integrated circuit, made of small diodes, transistors, and other small stuff. Circuit Board- able to hook up wires to it to connect it to the speaker and buzzer

- Explanation of difficulties encountered while creating the circuit: The difficulties encountered while creating the circuit are that the holes are so small it is hard to see where they go and it is hard to find the small resistors. In this one you have to connect it to springs, it is easy to connect it to the spring, but when you have to connect it from the spring to the holes it is hard to find the holes. Also there are so many ways to mess up, and you have to troubleshoot it afterward.

- Multimedia (Images, Interviews, Videos- make sure to title and number them) Picture 2: Complete Buzzer/Speaker Board Circuit Picture 3: Complete Buzzer/Speaker Board Circuit 2

media type="custom" key="543317" Video 2: 555 Circuit Interview

Binary Half Adder Circuit
- Function of the circuit: The function of the circuit is to make the LED light up by pressing the S1 and S2 one at a time. Each button finishes the circuit. Without eitherbutton, the cicuit cannot be finished, but if you press both at the same time, the LED doesn't light up. that is why it is Binary __Half__ Adder, it works half of the time. It works 2 times out of 4 possible times: no buttons pressed, S1 pressed only, S2 pressed only, and both buttons pressed. The numbers need to add up to 1 to make the circuit work in binary. 0+0=0, so that doesn't work; 1+0=1, that works; 0+1=1, that works; and 1+1=10 in binary, so that doesn't work.

- Components used in the circuit (listing with basic definitions): Wires- The wires connect the flow of the electricity to everything in the circuit. LED- An LED stands for Light Emitting Diode Resistors- The resistors resist the current so there isn't too much current to give to the LED 4070- A 4070 is a type of integrated circuit, made of small diodes, transistors, and other small stuff. Circuit Board- A circuit board is able to hook up wires to it to connect them to everything to make a circuit.

- Explanation of difficulties encountered while creating the circuit: The difficulties encountered while creating the circuit are that the holes are so small it is hard to see where they go and it is hard to find the small resistors. Also there are so many ways to mess up, and you have to troubleshoot it afterward.

- Multimedia (Images, Interviews, Videos- make sure to title and number them) Picture 4: Completed Binary Half Adder Circuit