TINKERING LAB
1. SERIES AND PARALLEL CIRCUITS USING BREADBOARD
AIM:
To make series and parallel circuits with LEDs and Breadboard using TinkerCad software.
APPARATUS REQUIRED:
S.No. Name of the apparatus Series circuit Parallel circuit
1. Bread board 1 1
2. Voltage source 9V 9V
3. Resistor 1kilo ohm-1 I kilo ohm-3
4. LEDs 3 No 3 No
PROCEDURE:
For Series Circuit:
1. Add breadboard and 9v voltage source.
2. Connect +ve terminal and -ve terminal of the voltage source to the bread board.
3. Take resistor of 1 kilo ohm and three LED's, connect one terminal of the resistor to the
cathode of first LED and the other terminal of the resistor to the -ve supply.
4. Connect the anode terminal of first LED to the cathode of the second LED and anode
terminal of second LED to cathode terminal of third LED.
5. Connect anode terminal of third LED to voltage source.
6. This completes the series circuit.
7. Click on start simulation and observe three LED's glow up in series connection.
For Parallel Circuit:
1. Add Bread board and 9V voltage source
2. Connect +ve terminal, -ve terminal of voltage source to the breadboard.
3. 3.Add LED's and three resistors of 1 kilo ohm on breadboard, Connect one terminal of the
resistor to the cathode of LED's and make three subsets.
4. Connect the anode of each LED to the +ve terminal of the voltage source.
5. Now connect the other terminals of the resistors to the -ve terminal of the voltage source.
6. This completes the parallel circuit.
7. Click on start simulation and observe three LED's glow up in parallel connection.
RESULT:
Hence series and parallel circuits with LEDs and Breadboard are designed using TinkerCad
software.
2. TRAFFIC LIGHT DEMO USING ARDUINO
AIM:
To conduct a traffic light signal demonstration using Arduino
APPARATUS REQUIRED:
S.No. Name of the apparatus Quantity
1. Arduino UNO 1
2. Bread board 1
3. LED's 3
4. Resistor a) 220ohm - 3No
b) 1000ohm - 1No
5. Pushbutton 1
CIRCUIT DIAGRAM IN ARDIUNO
PROCEDURE:
1. Take a bread board, three LED's, three resistors of 220 ohm and 1000 ohm resistor and a
push button.
2. Connect anode terminal of three LEDs to digital pins 13,12 and 8 of Arduino respectively.
3. Connect cathode terminal of three LED’s with 220 ohm resistors to the ground.
4. Connect the pushbutton of one end to digital pin 2 and other end of the pushbutton is
connected to 1000 ohm resistor and to the ground, also to the power button of the Arduino.
5. Check the code for errors and start simulation.
PROGRAMME:
/*
This program blinks pin 13 of the Arduino (the built-in LED)
*/
int buttonstate=0;
const int buttonpin=2;
int LED1=13;
int LED2=12;
int LED3=8;
void setup()
pinMode(LED1,OUTPUT);
pinMode(LED2,OUTPUT);
pinMode(LED3,OUTPUT);
pinMode(buttonpin,INPUT);
Serial.begin(9600);
void loop()
buttonstate=digitalRead(buttonpin);
if(buttonstate==1)
digitalWrite(LED1, 1);
Serial.print("STOP\n");
delay(2000);
digitalWrite(LED1, 0);
delay(500);
digitalWrite(LED2, 1);
Serial.print("GET READY\n");
delay(2000);
digitalWrite(LED2, 0);
delay(500);
digitalWrite(LED3, 1);
Serial.print("BYE\n");
delay(2000);
digitalWrite(LED3, 0);
OUTPUT IN SERIAL MONITOR:
START THE PUSH BUTTON
STOP - GREEN LIGHT GLOW
GETREADY - RED LIGHT GLOW
BYE - YELLOW LIGHT GLOW
RESULT:
Hence designed and conducted a traffic light signal demonstration using Arduino with TinkerCad
Software.
