Table of Contents

No.	Topic	Code	Diagram
1	Write a program to Blink default Light Emitting Diode(LED) on Arduino board with the delay of 2 sec.	Open	Open
2	Write a program to interface LEDs on pin no. 10,11,12,13 and blink alternatively at the delay of 1 sec.	Open	Open
3	Write a program to run pattern(s) on LEDs connect at pins 10,11,12,13. Pattern example : on, off, off, off off, on off, off off, off, on, off off, off, off, on on, on, off, off off, on, on, off off, off, on, on	Open	Open
4	Write a program to interface buzzer with Arduino board to buzz on/off with the delay of 1sec.	Open	Open
5	Write a program to interface LED and Buzzer with Arduino board, so that buzzer is put on henever LED is on and Buzzer is put off when LED is off	Open	Open
6	Write a program to interface Button and LED, so that LED blinks/glow when button is pressed.	Open	Open
7	Write a program to interface Button, buzzer and LED, whenever the button is pressed the buzzer gives beep for 100ms and LED status is toggled.	Open	Open
8	Write a program to interface LEDs at pins 10,11,12,13 and buttons at pins 7,8. When first time button at pin 7(increment button) is pressed first LED at pin 10 is switched on, when second time button is pressed the next LED at 11 is switched on. Similarly, when the button at pin 8 (decrement button) is pressed the LEDs are switched off sequentially.	Open	Open
9	Write a program to interface LEDs at pins 10,11,12,13 and button at pins 7. The press of button changes the pattern of LED glow. (considering four patterns of LED glow)
10	Write a program to interface Light Dependent Resistor (LDR) and display the values read on the Serial monitor after delay of 2 seconds each.	Open	Open
11	Write a program to interface Light Dependent Resistor (LDR) and LED with Arduino board. Whenever there is sufficient light falls on LDR the LED is off and when there is dark around LDR the LED is put on.	Open	Open
12	Write a program to interface LEDs at any two PWM pins and exhibit LED fading.	Open	Open
13	Write a program to interface LED at PWM pin and LDR, in such a way that when the light intensity falling on LDR rises the LED glow should be reduced and after a threshold value the LED should be put off. (representing smart street light concept)	Open	Open
14	Write a program to interface LEDs at any two PWM pins and button, to exhibit LED fading at the click of button.
15	Write a program to interface any analog (pollution) sensor and display the values read on Serial monitor.
16	Write a program to interface LCD with Arduino board and display ‘Hello world’ on it	Open	Open
17	Write a program to interface keypad with Arduino board and display the key pressed on Serial monitor.	Open	Open
18	Write a program to interface LCD and keypad with Arduino board and display the key pressed from keypad on LCD.
19	Write a program to interface LCD and keypad (4 X 4) , to exhibit the functionality of a basic calculator. 1 2 3 4 5 6 7 8 9 0 + - / * Clear Enter
20	Write a program using LCD, LEDs, Buzzer and keypad to simulate a password based security lock system. User enters 4-digit password and if the password is correct buzzer and Green LED is put on. But if the password is incorrect Red LED is put on. After three incorrect attempts Red LED along with buzzer blinks continuously.
21	Write a program to interface LCD and DHT11, displaying the value read from sensor DHT on LCD.
22	Write a program to interface DHT11 or any other temperature sensor, DC Motor, to exhibit a real life situation that whenever temperature rises above a threshold value the DC motor(representing fan) starts and when temperature falls below a value, the motor stops.
23	Write a program to interface LCD and Bluetooth module, to exhibit the values received from mobile handset via Bluetooth on LCD.
24	Write a program to interface LED and Bluetooth module, to switch on the LED if 1 is passed through Bluetooth and switch off the LED if 0 is send.
25	Write a program to interface Relay and Bluetooth module to switch on AC load (5W LED bulb, table lamp, etc) connected to relay if 1 is passed through Bluetooth and switch off the AC Load if 0 is send.