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=Radioshack Electronics Learning Lab Collaborative Lab Reports=

Group Members' Names: Nikki LeFort and Connor Dunleavy

Group Name:

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

Template for entry (Copy the template below exactly!)

Light-Dark detector (page 90)
It will emit a high-pitched tone when the photoresistor is either dark or illuminated.
 * - Function of the circuit:**

Connecting Wires - The connecting wires are metal wires surrounded with rubber to insulate it and they are used to connect different parts of the bread-board together. Capacitors - Capacitors are the components on the circuit that fill up with electricity and make the tone that is emmited. Resistors - Resistors prevent the direct circuit from going into the speakers and other components so that they are protected. Integrated circuit - An integrated circuit is a small chip consisting of transistors, resistors, and capacitors that are made to interconnect and do a certain function.
 * - Components used in the circuit (listing with basic definitions):**

Difficulties that occured when creating the circuit were things such as the wires not fitting in the hole on the first try. Other examples are placing the wires in the wrong place. Another problem that could occur is not putting the capacitors in with the cathode and anode in the right places.
 * - Explanation of difficulties encountered while creating the circuit:**

Figure 4: Completed Light-Dark Detector (Circuit 3)
 * - Multimedia (Images, Interviews, Videos- make sure to title and number them)**

Figure 5: Connor's Light-Dark Detector interview media type="custom" key="539923" width="103" height="96"

LED Flasher

 * - Function of the circuit:** The function of the circuit is to make the LED flash by connecting the wires to different holes on the bread board and using resistors, capacitors, and an integrated circuit.

Resistor – The resistor is used to keep the current from going right into the LED which would blow out the LED. Capacitor – A capacitor is what fills up and then goes into the LED to create the flashing and at what rate the flashing happens. Wire – The wire is what connected the different components together on the breadboard LED – The LED is the flashing component on the circuit and it consists of a cathode and anode Integrated Circuit - A  circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function.
 * - Components used in the circuit (listing with basic definitions):**

Difficulties discovered when building this circuit were ones like trying to find the correct holes to put the wires, resistors, and capacitors in. It was also difficult trying to find the right side that the cathode and anode go into because if they go in the wrong way it will not work and the circuit will be incomplete.
 * - Explanation of difficulties encountered while creating the circuit:**

Figure 1: Completed LED Flasher Board (Circuit 1)
 * - Multimedia (Images, Interviews, Videos- make sure to title and number them)**

555 "Black Box"
The 555 black box circuit is designed to admit a tone coming from the buzzer on the breadboard.
 * - Function of the circuit:**

Integrated circuit – The integrated circuit is used as the base of the circuit. The base is there in order to start the circuit and be a key central area for everything to be connected to and be powered by. Resistor – The resistors in this circuit resist the flow of electricty flowing threw the circuit. They can also increase the time required to charge capacitors and speed up their discharge. Capacitor – The capacitor is used to store electrical charge in the circuit. They measure time and generate a sequence of pulses in the circuit. Capacitors are often used with resistors in the same circuit. The 104 capacitor is used in this circuit. Connecting wires – the connecting wires are used to connect the main parts of the circuit like the capacitor(s), resistor(s), integrated circuit, and other possible parts of the circuit. The difficulties of this experiment are possibly putting the wires in the wrong spot. Another problem that was encountered was putting the integrated circuit in the wrong pin. An important tip to remember while creating a circuit using the breadboard would be to make sure the cathode and anode are placed in the right way for the capacitors, LED, or other parts with a certain cathode and anode.
 * - Components used in the circuit (listing with basic definitions)**
 * - Explanation of difficulties encountered while creating the circuit:**

Figure 2: Completed 555 black box (Circuit 2) 
 * - Multimedia (Images, Interviews, Videos- make sure to title and number them)**

Figure 3: Nikki's 555 black box interview media type="custom" key="543329"