Output Devices

This week, I did a trial run on my electronic board that I designed and manufactured for the final project, I used in the testing process these sensors and motors as it is the main subject of my final project, so I will use the motor and move it based on the movement of the person that the sensors will pick up.

What is Output Devices?

First let's get to know the output devices and what they involve، Output devices can be expressed by its name. When looking at the name, the word output appears in the mind, meaning that these devices are based on the output and show what has been programmed on it، That is, it is the output that the user outputs the data processing

Types of output devices:

  • Printer: It is the one that converts things visible on the screen into concrete papers, where you make the data on the computer on paper and the person holds it like any paper.
  • Screen: It is one of the most important units of the computer, as it displays everything on the computer and cannot be dispensed with
  • Headphones: A unit that listens to all the audible data such as songs

    • Schematic and Board

    I used Atmega328p in my board for Output Devices week as it can do the job of Arduino, and I also needed to add ports for the sensor and the motor as the image below shows the labels for each of them.

    I have not encountered any problems in terms of the connections as shown in the picture above in the lower corner that there are no errors in the process of connecting the electronic board.

    Next, I imported the board displaying only the top layer and the pads as an monochrome image and used Fabmodules to set the settings of milling as seen below.

    This week I did a test to test the Output devices, I am supposed to use the electronic board that I designed two weeks ago but due to the conditions and quarantine on the country I live in and the laboratory closed I could not reach my Board, so I used some components as LEDs - Resistors - Ponometer - Wires - Arduino Uno - Software Arduino.

    The operation was performed on an ultrasonic sensor device, where this device senses the movement and moves the engine in the direction that the sensor captures, as it will act as an Output device that receives the sensors of people and their bodies and gives commands according to them.

    Component Used

  • Final Project Board
  • Servo Motor
  • Ultrasonic Sensor
  • Jumper wires (generic)
  • Resistor
  • USB
  • Pins
  • Power Supply

    • After I made the connection process, which is shown in the following image, it is time to program the electronic board to do the action of my choice. I prepared the code and at the bottom the explanation of the code and what it indicates, continue below.

    Arduino Code
  • #include < Servo.h >
    Servo myservo;     Creates Servo Object
  • const int echopin1 = 10;

  • const int trigpin1 = 11;

  • const int echopin2 = 12;

  • const int trigpin2 = 13;

  • const int servo = 9; Each port is designated for both the Ultrasonic Sensor and Servo Motor port
  • long Rightduration, Leftduration, Rightinch, Leftinch; Establishes The Variables Of The Duration And Sets Distance In Inches
  • int threshold = 10; Sets The Sensor Threshold At 10 Inches
  • int angle = 80; Sets The Initial Angle
  • myservo.attach(9); Attaches The Servo On Pin 9
  • pinMode(trigpin1, OUTPUT); Trigpin1 is set as output
  • digitalWrite(trigpin1, LOW); Sets the trigpin1 to give low pulse
  • delayMicroseconds(3); Duration is 3 microseconds
  • digitalWrite(trigpin1, HIGH); Sets the trigpin1 to give high pulse
  • delayMicroseconds(5); Duration is 5 microseconds
  • digitalWrite(trigpin1, LOW);
  • Rightduration = pulseIn(echopin1, HIGH); Reads high pulse
  • pinMode(trigpin2, OUTPUT); Trigpin2 is set as output
  • digitalWrite(trigpin2, LOW); Sets the trigpin2 to give low pulse

  • delayMicroseconds(3); Duration is 3 microseconds

  • digitalWrite(trigpin2, HIGH); Sets the trigpin2 to give high pulse

  • delayMicroseconds(5); Duration is 5 microseconds
  • digitalWrite(trigpin2, LOW);

  • Leftduration = pulseIn(echopin2, HIGH); Reads high pulse

  • This will convert the elapsed time into the distance
  • Rightinch = microsecondsToInches(Rightduration);
  • Leftinch = microsecondsToInches(Leftduration);
  • follow(); Follows the movement

  • The speed of sound is 340 m/s or 73.746 microseconds per inch.
  • The ping travels out and back, so to find the distance of the
  • Object we take half of the distance traveled.
  • return microseconds / 74 / 2;

  • void follow() Conditions For The Ffollow Command

    • Test with My Board

    Files - Open Source

    Arduino Code

    OUTPUT Devices

    This week I built an experiment that works with the output devices and programmed it through Arduino software so that it gives a specific output that is determined at the end of the process and run the experiment, I was supposed to do this experiment on my tablet that was designed in Elctronics Design week but as a result of not Our ability to reach the laboratory so I had to do an experiment with some of the pieces I had.

    What is OUTPUT Devices?

    First let's get to know the output devices and what they involve، Output devices can be expressed by its name. When looking at the name, the word output appears in the mind, meaning that these devices are based on the output and show what has been programmed on it، That is, it is the output that the user outputs the data processing

    Types of output devices:

  • Printer: It is the one that converts things visible on the screen into concrete papers, where you make the data on the computer on paper and the person holds it like any paper.
  • Screen: It is one of the most important units of the computer, as it displays everything on the computer and cannot be dispensed with
  • Headphones: A unit that listens to all the audible data such as songs

    • In this experiment, I used the "LCD" screen and programmed it to display the words you specified in the code assigned to this process.

    Component Used

  • Arduino UNO
  • Breadboard
  • Screen LCD
  • Jumper wires (generic)
  • Resistor 220 ohm
  • USB
  • Pins

    • I performed my experiment first without soldering the "LCD" ports to the pins that would be connected with Breadboard and I had a problem that the screen ports are wide enough and a permanent connection cannot be established through it so I had to weld it and then the experiment started.

    To connect the wires correctly, the following diagram shows the ports on which the wiring was connected to work properly.

    Connection scheme

  • VSS ► GND
  • VDD ► 5V
  • VO ► PIN 9
  • RS ► PIN 11
  • RW ► GND
  • E ► PIN 12
  • D0 ► NONE
  • D1 ► NONE
  • D2 ► NONE
  • D3 ► NONE
  • D4 ► PIN 5
  • D5 ► PIN 4
  • D6 ► PIN 3
  • D7 ► PIN 2
  • A ► PIN 10
  • K ► GND

    • After completing the connection process I proceeded to write the Arduino code that will launch the screen and display the content. First you must include the "LiquidCrystal" library that will recognize the screen and then write the code. The following image shows the process of including the library.

    I have written my code which I will use as it shows many values ​​including the screen playback time and display name of "6000" milliseconds, also the text that will be displayed on the screen in addition to some other values ​​that appear in the blinking time and the time to turn off the screen light and the duration of its operation.

    The following video explains the process:

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    Files - Open Source

    Schematic

    Board

    Arduino Code