Conventional Flow vs Electron Flow Explained

Conventional Flow vs Electron Flow Explained

“baldengineer” explains which way the current flows.


Designing a mains frequency monitor

Designing a mains frequency monitor

Dan Watson writes: This is the second in a series of posts about designing a mains frequency monitor using the Microchip PIC...


How to Build a Control Circuit with Adjustable Working Time via Wi-Fi

How to Build a Control Circuit with Adjustable Working Time via Wi-Fi

In this article, you’ll learn how to build a system that can turn DC loads on and off using a mobile application.


Arduino Tutorial: Serial Plotter the new impressive tool of the Arduino IDE

Arduino Tutorial: Serial Plotter the new impressive tool of the Arduino IDE

A few months ago, with version 1.6.6, the Arduino IDE introduced a great new feature.


Dark Sensitive Lamp ON/OFF Controller

Dark Sensitive Lamp ON/OFF Controller

Dark Sensitive Lamp controller project switches a load connected to it when light falling on LDR (Light Dependent Resistor) goes...


DIY Voltmeter using a simple voltage sensor and Arduino Uno and a Nokia 5110 LCD

DIY Voltmeter using a simple voltage sensor and Arduino Uno and a Nokia 5110 LCD

In this video we are going to learn how to build our own voltmeter using a very inexpensive sensor.


42V, 3.5A-out buck regulator operates at 175°C ambient

42V, 3.5A-out buck regulator operates at 175°C ambient

LT8610AX is a 3.5A, 42V input-capable synchronous step-down switching regulator, which operates in ambient temperatures up to...


LED current regulator has low dropout

LED current regulator has low dropout

Peter Demchenko @ edn.com This Design Idea circuit regulates the current through one or more LEDs, making it almost independent...


Battery-pack fuel gauge with SHA-256 authentication prevents pack cloning

Battery-pack fuel gauge with SHA-256 authentication prevents pack cloning

Implementing pack-side battery gauges in portable devices is easier and more secure, Maxim asserts, with its ModelGauge m5...


Arduino Lightning Detector

Arduino Lightning Detector

This is an Arduino tutorial on how to detect lightning from far away.


AutoResetRRR – Automatically reset routers/cameras/servers

AutoResetRRR – Automatically reset routers/cameras/servers

“bogdan” published a new project, a device able to automatically reset your router, camera or server.


1.8″ DIY Photo Frame using and Arduino Nano and a ST7735 Color TFT display

1.8″ DIY Photo Frame using and Arduino Nano and a ST7735 Color TFT display

In this video educ8s.tv is going to show us how to use the SD card slot of the popular 1.8″ Color TFT display which uses the S...