Add the following snippet to your HTML:. Please log in or sign up to comment. Project tutorial by Praditha Alwis. Tthis project is going to show you how to make Bluetooth led control with lcd beside the Arduino sowing the new led status. Project tutorial by Youssef Sabaa. You can control LED by clap with the help of Arduino and sound sensor.
Latest Projects Education. Microcontrollers Switch hookup with relay arduino. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
Pushbuttons or switches connect two open terminals in a circuit. This example turns on the LED on pin 2 when you press the pushbutton switch connected to pin 8. Pull-down resistors are used in electronic logic circuits to ensure that inputs to Arduino settle at expected logic levels if external devices are disconnected or are at high-impedance. As nothing is connected to an input pin, it does not mean that it is a logical zero.
Simply speaking, a Hall Effect Sensor or IC detects motion, position or change in magnetic field strength of either a permanent magnet, an electromagnet or any ferromagnetic material. Hall Effect IC are contact-less magnetically activated switches. They are used in a wide range of applications like automobiles, computers, control systems, security systems etc.