Build 1-2

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School

University of Florida *

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Course

3003

Subject

Electrical Engineering

Date

Apr 3, 2024

Type

pdf

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Uploaded by CorporalGalaxy13875

EEL 3003 Arduino Builds 1 & 2 Notes: There might be multiple parts to some questions, insert pictures as required, save as a PDF, and upload into Canvas before the due date/time! Type your answers - handwritten responses will not be accepted. There are two submissions in this assignment: 1) The report as a PDF: • File name) Your last name Your first name initial-Build #-#.PDF (example: VirguezL-Build1-2.PDF ) 2) A short video as a wmf, mp4, or avi (mp4 works BEST) • File name) Your last name Your first name initial-Circuit#.mp4 (example: VirguezL-Circuit2.mp4 ) Leave the question statements in your document , insert your answers/pictures, etc. after each individual question. Include your UF ID in all photos and videos First Name: Carolina Last Name: Horey UF-ID Number: 17990517 Read the instructions carefully, and then answer the questions below. 1. Build circuit 1 (pages 20-31 in Arduino Book): There are four different circuits. For each circuit: a. Paste a picture or pictures of a functioning circuit. In the picture include your UF ID. b. How does the circuit work? Describe how the current flows through the circuit. DO NOT describe how the circuit is connected (the pictures show this). 1) [10] LED and Resistor a. b. A current will only flow through a complete circuit from positive to negative. Based on the circuit shown above, the current comes from the 5V source that is powered on when the circuit board is plugged in. The red jumper wire brings that current into the breadboard where the 220-ohm resistor brings it to the anode (+) of the LED light. The yellow jumper connects the cathode (-) of the LED to the ground completing the circuit which allows the current to flow through completely, turning the red LED light on.

2) [10] Add a pushbutton: LED, resistor and pushbutton a. b. In the case shown above, the current flows into the breadboard where the resistor brings it to the switch that is being pressed. The orange jumper only connects to the bottom of the switch which entails that the current will not pass through to the LED unless the switch is pressed. If done so, the current passes through the orange jumper to the anode (+) of the LED light and the yellow jumper connects everything back to the ground allowing the current to flow through a complete loop (when the switch is on). 3) [10] Series circuit: Add a second pushbutton and put it in series. a. b. In a series configuration, both switches must turn on for the current to pass through completely. As in every case, the current comes into the breadboard from the 5V source that is powered on when plugged in. Here the current flows through the resistor into the first switch but stops if the switch is not on. When the first switch turns on the orange jumper allows the current to flow into the second switch, but if it is not on then the current stops as it cannot flow through. Thus, both switches must be on (both buttons are pressed simultaneously) for the current to reach the LED light in a complete circuit. With this understanding, we know that components in series have the same current flowing through them.

4) [10] Parallel circuit: Put the pushbuttons in parallel. a. b. In a parallel configuration, either switch can be turned on for the current to pass through completely. Once the current can pass through the resistor to the first switch, the orange jumper allows the current to immediately flow to the second switch. If neither switch is turned on, the current can ’t travel in a complete circuit, so the LED doesn’t turn on. If the first switch is pressed, the LED turns on because the blue jumper brings the current straight to the LED anode (+) without having to pass through the second switch as well. If we press the second switch only, the LED will still light up because of that orange jumper that allows the current to flow between the two switches; then the green jumper brings the output of switch 2 to the LED, turning it on. 2. Build circuit 2 (pages 33-41 in Arduino Projects Book): a. [5] A one or two-sentence description of how the circuit works. The code displayed on the computer sends a signal to the circuit board, telling it how to function. b. [25] Record a short video (less than a minute) of a functioning circuit. In the video briefly describe how the code works. Include your UF ID in the video. *Video in a separate submission* 3. [10] Describe the differences between an analog and a digital value. An analog value can be described as a value being on a spectrum; it can be within a range of values (0V to 5V). On the other hand, a digital value is a discrete unit that does not have any kind of variability; either this or that, not in between. [10] Give an example of an application of each one. Analog values may be used in temperature sensors as a range of temperatures can be set to put out specific data. For instance, in a range from 0 degrees to 100 degrees, we can get a value of 98.5 degrees. Digital values are used in build 2 within a code that commands the circuit. In this example, the outputs have values of “HIGH” or “LOW” to signal being turned on or off (there is no in -between).

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4. What are the values of the following resistors? [5] a. 2.5 k Ω + 10% [5] b. 339 Ω + 1% red green red silver orange orange white black brown 2 + 5 + x10^2 +10% 3 + 3 + 9 + x10^0 + 1%