Learn electronics, coding, and projects — step by step.
Keypad is commonly use in devices like ATM machine, microwave oven, safety vault, security door lock, and many more. In this tutorial we will focus on the most popular to electronics enthusiasts and tinkerers which is a 4×4 matrix keypad. We will discuss how it works and at the last we will provide an example […]
In here we will learn how we can use SIM800L DTMF to control anything from simple turning On or turning Off of LED to big projects like home automation. DTMF stands for Dual Tone Multi Frequency or more commonly known as Touch Tone. You will most likely to experience the use of DTMF when you […]
Building an Android application is one option to control your robot project or anything that comes to your mind. And with the use of the MIT App Inventor 2, you can easily create an Android application. In this tutorial, we will learn to create a simple Android application which can control the state of the […]
With this article, we will create a remote control (RC) car with the use of HC-06 bluetooth module to make it wireless and L298N motor driver to control speed and direction of rotations of the motors. CIRCUIT DIAGRAM BILL OF MATERIALS Arduino Uno as the main board HC-06 bluetooth module to receive commands via bluetooth […]
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 […]