Electro Kailash Project ( NEPAL)

 Project Title: Switch Array Matrix Using Push Button  and LEDs Objective: To create a matrix-based switching system using mechanical switches. Components Required: S.N. Component Quantity 1 Push Button Switch 100 2 Green LEDs (5mm) 10 3 Resistors (330Ω – 470Ω) 10 4 Power Supply (5V DC) 1 Circuit Description: ckt diagram                        The switch matrix consists of 10 rows and 10 columns, forming a 10x10 grid of switches. One terminal of each switch is connected to a horizontal row line, while the other terminal connects to a vertical column line. Each row line is connected to a resistor, followed by a green LED, which leads to ground. A 5V DC supply is provided to all column lines. When a switch is pressed, it closes the circuit between a column (positive supply) and a row (connected to LED and resistor to GND), causing the LED in that row to glow. generally 10k ohm resistor are used for p...

Project Title: LED Matrix Control using Arduino UNO (4×3 LED Array)   Objective: To design and control a 4×3 LED matrix using an Arduino UNO, implementing: Running LED effect Row-wise glow Column-wise glow   LED Matrix Design   Hardware Components: Component Quantity Arduino UNO 1 5mm   LEDs 12 220Ω Resistors 4 Breadboard / Simulation 1 Connecting Wires As required Circuit Description: The LED matrix consists of: 4 rows (cathodes) connected to pins 6, 7, 8, 9 3 columns (anodes) connected to pins 10, 11, 12 Each LED is addressed by: Setting an anode HIGH Setting a cathode LOW This way, a specific LED can be turned ON while avoiding unwanted lighting .                  ...