Fluke 15B+ Digital Multimeter Upgraded with ESP8266

Fluke 15B+ Digital Multimeter Upgraded with ESP8266

SpritesMods has a 5-part write-up that shows how to add wireless connectivity to a Fluke 15B+ digital multimeter All in all, I...


Fuel-gauge ICs help prevent battery clones

Fuel-gauge ICs help prevent battery clones

Maxim’s family of ModelGauge m5 standalone fuel gauges provides SHA-256 authentication with a 160-bit secret key to make it h...


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.