Reed switches are fascinating electromechanical devices that play a crucial role in various industries and applications. Reed switches are included in reed sensors or reed relays. The ferromagnetic circuit tongues move in relation to each other in the presence of an external magnetic field. This technology makes it possible to produce reliable, hermetically sealed switching elements with a small … [Read more...]
What is Schmitt Trigger: Explained
We have mentioned the usage of Schmitt Trigger in our earlier article Read a Pushbutton with Arduino with Interrupts and Debounce. The Schmitt trigger, named after its inventor Otto Schmitt, who invented it in 1934 while still a student, is an electronic comparator circuit in which the switch-on and switch-off thresholds do not coincide, but are offset against each other by a certain voltage, the … [Read more...]
Read a Pushbutton with Arduino with Interrupts and Debounce
Pushbuttons are ubiquitous components used for user input in Arduino projects. However, reading pushbutton inputs reliably can be challenging due to issues such as contact bounce and the need for responsive behaviour. In this article, we'll explore how to read pushbutton inputs using interrupts and debounce techniques, ensuring accurate and responsive interaction with Arduino … [Read more...]
What is Joule Thief Circuit? How We Can Make Powerful LED Flashlights
In electronics, a joule thief is a discrete electronic circuit that transforms an electrical DC voltage into a higher electrical voltage. It represents a particularly simple and compact implementation of a resonance transducer. The phrase Joule thief is a pun of the jewel thief and is intended to make it clear that the circuit squeezes ("steals") the last remnant of electrical energy from a … [Read more...]
Banana Plugs: A Comprehensive Guide
A banana plug is a round pin with a contact spring for laboratory, measuring instruments and experiments. It is part of a low-voltage connector system and usually fits into a rigid socket (banana socket) with a diameter of 4 mm. The plug sits securely thanks to its spring, but can be easily removed without tools. The current carrying capacity is up to about 32 amps. Banana plugs are ubiquitous … [Read more...]
Arduino 3V DC Mini Pump with Push Button Control and LED Indicators (For Kids)
Here's an Arduino sketch to control a 3V DC pump using a push button to start and stop the pump. Additionally, it includes two indicators (green and red LEDs) to signify the status of the pump (running or stopped). This project is intended for the kids, however parents will be required to help them. Although the project is the kids, the sketch includes the usage of Arduino Interrupt. We have … [Read more...]
What is Motion JPEG (MJPEG) Video Codec
Motion JPEG (MJPEG) is a video codec in which each frame is compressed separately as a JPEG image. It is a video compression format that has been widely used in various applications for many years. Unlike traditional video codecs that compress entire frames, M-JPEG compresses each frame of a video sequence individually as a series of JPEG images. This approach offers certain advantages and … [Read more...]
How Gyroscope Works? Explained
Gyroscopes are fascinating devices that play a crucial role in various applications, from stabilizing spacecraft to enabling motion sensing in smartphones. Their ability to maintain orientation and detect angular velocity makes them indispensable in navigation, robotics, and aerospace. Currently, the term gyro and gyroscope are used figuratively for a variety of gyro sensors that do not contain … [Read more...]
How Accelerometers Work? Explained
Accelerometers are a fundamental component of motion sensing technology, serving as the backbone for various applications ranging from smartphones to automotive safety systems. These devices measure acceleration forces, allowing them to detect changes in velocity, orientation, and vibration across multiple axes. This is usually done by determining the inertial force acting on a test mass. This … [Read more...]
Arduino Interrupt: Blink LED and Beep Every 1 Second, Pauses Upon Button Press
Though the previous few articles, I have explained some theories required for embedded projects, which include three longer articles on Interrupt - What is Interrupt, How Interrupt Works and Understanding Arduino Interrupts. If you have not read those articles and are not sure what I am talking about, then kindly read the three articles after testing the code in this guide. Our target of this … [Read more...]
Basics of Time of Flight (ToF) Explained
Time of Flight (ToF) is a fundamental concept in physics and engineering that measures the time taken by an object, particle, or wave to travel a certain distance. It finds applications in various fields, including physics, engineering, remote sensing, and medical imaging. They have emerged as essential components in various industries. Depending on the module, they are offering precise distance … [Read more...]