Learn electronics, coding, and projects — step by step.
In this tutorial, we will learn on how to use the LCD Keypad Shield for Arduino. This shield is compatible for Arduino Uno and Arduino Mega. PINOUT From these pin assignments, we can conclude that the following pins are free and available for other purposes: Digital pins: 0, 1, 2, 3, 11, 12, and 13 […]
Interrupt is extremely useful when dealing with all kinds of processes that need attention at unexpected times or when expecting a certain event or signal at indefinite and unknown times. For example, you send a chat message to your crush. You are very excited but also nervous. So every second you are checking your messenger […]
This is my own version of automatic (No touch / touchless) alcohol / sanitizer dispenser. This is especially useful during this COVID19 pandemic. In here, we will be using an ultrasonic sensor to detect the presence of hand near the dispenser. When the ultrasonic sensor detects an object less than the set distance, it will […]
This tutorial is about the commonly use HC-SR04 ultrasonic sensor. We will give some details about it, explain how it works, and at the last part we will create an Arduino sketch to test its functionality. HOW HC-SR04 WORKS The HC-SR04 ultrasonic sensor uses a sound frequency to determine distance of an object just like […]
This is a worldwide viral meme music is known as Astronomia Meme and Funeral Dance. The origin of these viral videos is Ghana, a country of Western Africa. The tradition is to celebrate death and the journey thereafter to another world. VIDEO DEMONSTRATION SOURCE CODE #include “pitches.h” #define SPEAKER_PIN 3 int melody[] = { NOTE_AS4, […]