Visualizing Keypad Scanning with LEDs using Arduino MegaLet’s Think About How the Keypad Works Let’s think about how the keypad is working and how the microcontroller detects which key is pressed. To make this process visible, I built a small project with two 4×4 keypads and 16 LEDs connected to an Arduin...Aug 31, 2025 · 2 min readari-tech-forge.hashnode.dev
Arduino Mega 7-Segment 4-Digit Counter (0000–9999)This project demonstrates how to interface a 4-digit 7-segment display with an Arduino Mega using bare-metal programming. The display counts from 0000 to 9999 using only 12 pins: 8 pins → for 7-segment data input 4 pins → for digit selection 🖼️ ...Aug 17, 2025 · 2 min readari-tech-forge.hashnode.dev
Displaying 4-Digit Numbers on a Seven Segment Display with Arduino Mega (Bare-Metal Programming)Seven-segment displays are widely used in digital clocks, counters, and embedded devices to display numeric values. In this project, we will learn how to interface a 4-digit seven-segment display with an Arduino Mega 2560 using only 12 pins. 🔧 Why M...Aug 17, 2025 · 3 min readari-tech-forge.hashnode.dev
Counting 0–9 on a Seven Segment Display with Arduino Mega (Bare-Metal Programming)Seven-segment displays are one of the simplest and most effective ways to show numbers in embedded systems. In this project, I used an Arduino Mega 2560 with a common cathode 7-segment display and programmed it using bare-metal C (direct register acc...Aug 17, 2025 · 2 min readari-tech-forge.hashnode.dev
DAY 01 - Learning Electronics Foundation – Etalvis Learning Journey BeginsI recall about the Digital Electronics and solved problems in the Etalvis Learning Platform 🔷 1. Introduction to Digital Electronics (for beginners) 🔸 What is Digital Electronics? Digital Electronics is a branch of electronics that works with disc...Aug 3, 2025 · 5 min readari-tech-forge.hashnode.dev
