Circuit Simulation using TinkerCAD

Duration: 1 Hr

Training Points: 100

TinkerCAD :

TinkerCAD is a free web app for 3D design, electronics, and coding. We’re the ideal introduction to Autodesk, a global leader in design and make technology.

Login - Tinkercad

Tinkercad

1. Click on "Students Account"
2. Sign In with "Google Account"
3. Create new empty "Circuit"

Task 1.

1. Blink an LED {Prewritten Code from TinkerCAD}
2. Add a pushbutton to it.

Objectives :

• Familiarity with Arduino Uno
• Familiarity with LED - A Polar device
• Creating circuit

Circuit Diagram :

1. Blink an LED

2. Add an push button to the circuit

Coding Arduino:

In Arduino, the main function is managed by the framework, and you typically do not need to write main() yourself. Instead, you write the setup() and loop() functions, which the Arduino runtime uses internally in its main() function like this (behind the scenes):

// C++ code
//
/*
  This program blinks pin 13 of the Arduino (the
  built-in LED)
*/

void setup()
{
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop()
{
  // turn the LED on (HIGH is the voltage level)
  digitalWrite(LED_BUILTIN, HIGH);
  // turn the LED off by making the voltage LOW
}

Task 2. Seven Segment Display

Objectives :

• Types of 7 Segment display (CA {Common Anode} and CC {Common Cathode})
• Connections in Bread board
• Familiarity with 7 Segment Display

Circuit Diagram :

Coding Arduino:

// Counter initialized with maximum integer = 9
// For a 7 Segment 
int counter = 9;

// Declaring constant integers 
// For connection with each Arduino pins
const int A = 11;
const int B = 12;
const int C = 7;
const int D = 6;
const int E = 5;
const int F = 10;
const int G = 9;
const int DP = 8;

// Setting up the roles of pins 
// i.e. Output
void setup()
{
  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);
  pinMode(G, OUTPUT);
  pinMode(DP, OUTPUT);
}

void loop()
{
  // Display function to call 
  // which we will write in next block and which will take care
  // of displaying on 7-segment
  display(counter);

  // Decrease counter
  counter -= 1;
  if (counter == -1)
  {
    counter = 9;
  }
  
  // Add Delay for 1 sec
  delay(1000);
}

void display(int count)
{
  int a = 1;
  int b = 1;
  int c = 1;
  int d = 1;
  int e = 1;
  int f = 1;
  int g = 1;
  int dp = 1;

  switch (count)
  {
    case 1:
      b = c = 0;
      break;
    case 2:
      a = b = d = e = g = 0;
      break;
    case 3:
      a = b = c = d = g = 0;
      break;
    case 4:
      b = c = f = g = 0;
      break;
    case 5:
      a = c = d = f = g = 0;
      break;
    case 6:
      a = c = d = e = f = g = 0;
      break;
    case 7:
      a = b = c = 0;
      break;
    case 8:
      a = b = c = d = e = f = g = 0;
      break;
    case 9:
      a = b = c = d = f = g = 0;
      break;
    default:
      count = 0;
      a = b = c = d = e = f = 0;
      break;
  }

  // Writing output pins with its Corresponding HIGH or LOW values
  // via variables a, b, c, etc.
  digitalWrite(A, a);
  digitalWrite(B, b);
  digitalWrite(C, c);
  digitalWrite(D, d);
  digitalWrite(E, e);
  digitalWrite(F, f);
  digitalWrite(G, g);
  digitalWrite(DP, dp);  // Keep DP off; set to 1 if you want the dot on
}

Task 3.

1. Voltage Regulator IC LM7805
2. Testing using Multimeter

Objectives :

• Familiarity with Multimeter
• Need of voltage Regulation – (Need of constant voltage to some sensors exceeding which can burn them)

Learning Source:

1. Introduction to TinkerCAD

2. Arduino with TinkerCAD