In this project we will see how to create an audio spectrum analyzer using a ferromagnetic liquid from a bottle filled with this particular liquid. To do this, an Arduino Nano will be used and an MSGEQ7 integrated circuit that allows you to read the audio peak of a given band. In this way the…
This pressure-sensitive band warms up as you rest your hand on it, and cools down with firmer pressure. The jersey sash stretches to hug your body and ties easily around your waist. Made with women in mind, it’s a cozy, hands-free hot pad for your crampiest days! Remix Suggestion: If you tweak the code and…
If you create PCB with SMD components or you are a repairman you surely know how important and convenient a hot air soldering station is. With this project, you will be able to learn how to make a hot air gun controller using Arduino and other common components. This project uses an 858D compatible air…
A transistor is defined as a semiconductor device that’s fundamentally built with three terminals for amplifying or switching electronic signals and electrical power purposes. Commonly classified into Bipolar Junction Transistors (BJT), and Field Effect Transistors (FET), these devices allow for the existence of radios, computers, calculators, etc. that you use today. Well, with modern-day…
If you don’t have a ready source of high voltage, here’s an easy way to build one from the aptly-named [HVZapp]. The parts list is pretty simple to acquire, except for the transformer. For that, [HVZapp] raided a broken arc lighter. It took us a minute to realize that the MOSFETs are in parallel. The hand-drawn…
The project presented is a stepper motor/motor driver circuit board with SN754410 motor driver IC including some power saving features. The board can drive 2 DC motors or a stepper motor with the help of dual H bridge circuit in the IC. SN754410 IC is being widely used for driving motors as it operates…
It detects stationary and moving people just like a PIR, but it can do that also behind doors and thin walls, by taking advantage of the Doppler effect. The detection of people, animals and hot bodies in general has been done for years using passive infrared radars, also known as PIR, which…
It allows controlling devices such as lights, motors and even relays from a channel of a radio modelling receiver. The signal and the standard of servo controls were born to guarantee proportional control of utilizers such as electric motors for modelling and radio modelling, in order to set and maintain a well-defined angular position…
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