Published March 14, 2021 © GPL3+

7 segment and LCD counter

This project counts up to 20 seconds.

IntermediateShowcase (no instructions)914

Things used in this project

Hardware components

Alphanumeric LCD, 16 x 2

7 Segment LED Display, InfoVue

I used common cathode

Arduino UNO

Solderless Breadboard Half Size

Jumper wires (generic)

Rotary potentiometer (generic)

Perma-Proto Breadboard Half Size

If you want to solder it.

Software apps and online services

Arduino IDE

Autodesk Tinkercad

Hand tools and fabrication machines

Soldering iron (generic)

Solder Wire, 0.022" Diameter

Helping Hand Tool, with Magnifying Glass

All only if you want to solder.

Story

I made this for my robotics class assignment.

The Tinkercad link:

https://www.tinkercad.com/things/glT7bYwplnC

The Pic:

Final Project

Code

the code

#include <LiquidCrystal.h>

LiquidCrystal lcd(13,12,11,10,9,8);

const int a = 7;
const int b = 6;
const int c = 5;
const int d = 4;
const int e = 3;
const int f = 2;
const int g = 1;
const int a2 = 0;
const int b2 = A0;
const int c2 = A1;
const int d2 = A2;
const int e2 = A3;
const int f2 = A4;
const int g2 = A5;
void setup()
{
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(a2, OUTPUT);
  pinMode(b2, OUTPUT);
  pinMode(c2, OUTPUT);
  pinMode(d2, OUTPUT);
  pinMode(e2, OUTPUT);
  pinMode(f2, OUTPUT);
  pinMode(g2, OUTPUT);
  lcd.begin(16,2);
  lcd.clear();
  lcd.home();
}
void loop()
{
  zero();
  one();
  two();
  three();
  four();
  five();
  six();
  seven();
  eight();
  nine();
  ten();
  eleven();
  twelve();
  thirteen();
  fourteen();
  fifteen();
  sixteen();
  seventeen();
  eighteen();
  nineteen();
  twenty();
}
void zero()
{
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, HIGH);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, LOW);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Zero");
  delay(1000);
}
void one()
{
  digitalWrite(a2, LOW);
  digitalWrite(d2, LOW);
  digitalWrite(e2, LOW);
  digitalWrite(f2, LOW);
  digitalWrite(g2, LOW);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("One");
  delay(1000);
}
void two()
{
  digitalWrite(a2,HIGH);
  digitalWrite(d2,HIGH);
  digitalWrite(e2,HIGH);
  digitalWrite(f2, LOW);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, LOW);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Two");
  delay(1000);
}
void three()
{
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, LOW);
  digitalWrite(f2, LOW);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Three");
  delay(1000);
}
void four()
{
  digitalWrite(a2, LOW);
  digitalWrite(d2, LOW);
  digitalWrite(e2, LOW);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Four");
  delay(1000);
}
void five()
{
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, LOW);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, LOW);
  digitalWrite(c2, HIGH);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Five");
  delay(1000);
}
void six()
{
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, HIGH);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, LOW);
  digitalWrite(c2, HIGH);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Six");
  delay(1000);
}
void seven()
{
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, LOW);
  digitalWrite(e2, LOW);
  digitalWrite(f2, LOW);
  digitalWrite(g2, LOW);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Seven");
  delay(1000);
}
void eight()
{
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, HIGH);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Eight");
  delay(1000);
}
void nine()
{
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, LOW);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  digitalWrite(a, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Nine");
  delay(1000);
}
void ten()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, HIGH);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, LOW);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Ten");
  delay(1000);
}
void eleven()
{
  digitalWrite(a2, LOW);
  digitalWrite(d2, LOW);
  digitalWrite(e2, LOW);
  digitalWrite(f2, LOW);
  digitalWrite(g2, LOW);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  lcd.clear();
  lcd.print("Eleven");
  delay(1000);
}
void twelve()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2,HIGH);
  digitalWrite(d2,HIGH);
  digitalWrite(e2,HIGH);
  digitalWrite(f2, LOW);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, LOW);
  lcd.clear();
  lcd.print("Twelve");
  delay(1000);
}
void thirteen()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, LOW);
  digitalWrite(f2, LOW);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Thirteen");
  delay(1000);
}
void fourteen()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, LOW);
  digitalWrite(d2, LOW);
  digitalWrite(e2, LOW);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Fourteen");
  delay(1000);
}
void fifteen()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, LOW);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, LOW);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Fifteen");
  delay(1000);
}
void sixteen()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, HIGH);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, LOW);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Sixteen");
  delay(1000);
}
void seventeen()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, LOW);
  digitalWrite(e2, LOW);
  digitalWrite(f2, LOW);
  digitalWrite(g2, LOW);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Seventeen");
  delay(1000);
}
void eighteen()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, HIGH);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Eighteen");
  delay(1000);
}
void nineteen()
{
  digitalWrite(a, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, LOW);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, HIGH);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Nineteen");
  delay(1000);
}
void twenty()
{
  digitalWrite(a,HIGH);
  digitalWrite(d,HIGH);
  digitalWrite(e,HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(a2, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(e2, HIGH);
  digitalWrite(f2, HIGH);
  digitalWrite(g2, LOW);
  digitalWrite(b2, HIGH);
  digitalWrite(c2, HIGH);
  lcd.clear();
  lcd.print("Twenty");
  delay(1000);
}

7 segment and LCD counter

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

This is the circuit diagram

Code

the code

Credits

roshan-baig

Comments

Embed the widget on your own site

7 segment and LCD counter

7 segment and LCD counter

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

This is the circuit diagram

Code

the code

Credits

roshan-baig

Comments

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