Multi-brightness LED controller draws zero off-current
https://www.electronics-lab.com/multi-brightness-led-controller-draws-zero-off-current/
T A Babu @ edn.com has a design idea of a led controller with some nice features: The key features of this Design Idea are: Soft switch on/off operation Zero current drain in sleep mode Two level dimming Low battery protection Simple controller based on CMOS 4017 Johnson counter Multi-brightness LED controller draws zero off-current […]
LED Based Strobe For Entertainment, Events & Warning Signals
https://www.electronics-lab.com/led-based-strobe-entertainment-events-warning-signals/
Strobe provides regular flashes of light. Usually Strobes are designed using Xenon Tubes. Here is LED based simple solution that can be used as strobe for entertainment and events and also as warning signals. Project is based on PIC16F1825 micro-controller with two digit frequency display. Project provides TTL output signal, frequency 1Hz-25Hz, Tact switches provided […]
Ultra-thin, high thermal conductivity substrate integrates ESD protection
https://www.electronics-lab.com/ultra-thin-high-thermal-conductivity-substrate-integrates-esd-protection/
Clemens Valens @ elektormagazine.com discuss about a new IC substrate. He writes: A new, ultra-thin ceramic substrate with an ESD strength of up to 25 kV – more than three times higher than the standard 8 kV of state-of-the-art Zener diodes – also features a high thermal conductivity of 22 W/mK. This is three times […]
AS7221, An IoT Smart Lighting Manager
https://www.electronics-lab.com/as7221-iot-smart-lighting-manager/
ams AG, a multinational semiconductor manufacturer and provider of high performance sensors and analog ICs, had announced the AS7221, an integrated white-tunable smart lighting manager that can be controlled through its network connection by means of simple text-based commands. AS7221 is a networking-enabled IoT Smart Lighting Manager with embedded tri-stimulus color sensing for direct CIE […]
NVSW319A, A New High Power LED By Nichia
https://www.electronics-lab.com/nvsw319a-new-high-power-led-nichia/
Nichia Corporation, the Japanese chemical engineering and manufacturing company, announced the NVSW319A as a new high-power LED that achieves 164 lm/W at 700mA (5,000K). The 319A is a 3.5×3.5×2.1 mm size LED which is footprint compatible with the old 3.5mm LEDs. The breakdown is specified at 1,050 mA (~3 W). Nichia planned to start the […]
DIY Breathalyzer Using Arduino UNO
https://www.electronics-lab.com/diy-breathalyzer-using-arduino/
Today I am going to discuss how to make a very simple DIY Breathalyzer using Arduino UNO and few external components. Ana Carolina designed this project as an instructable in instructables.com. This is a low-cost project and a useful one too. If you have no idea about what breathalyzer is, let me explain briefly: A breathalyzer is a device […]
A Christmas star with Neopixel LEDs
https://www.electronics-lab.com/christmas-star-neopixel-leds/
A geeky Christmas decoration made with 56 LED Neopixel and controlled via an Arduino Micro board: Let’s take a look, therefore, at the project’s electrical section, that is essentially composed of a set of 56 Neopixel LEDs, that have been arranged so to form two concentric stars; the first 35 RGB LEDs (out of 56) […]
Tiny LED Time Watch
https://www.electronics-lab.com/tiny-led-time-watch/
David Johnson-Davies designed a minimalist ATtiny85-based watch using 12 LEDs, arranged like a clock face, to show the time in analogue-style. He writes: To show the time you press the button on the watch face, and the time is then displayed for four seconds. It lights one LED to show the hour, and flashes another […]
Simple Electronic dice
https://www.electronics-lab.com/simple-electronic-dice/
This project is an electronic dice. It consists of seven LEDs positioned like a dice which light up to show the number. The leds are controlled by a 74HC4017 decade counter IC. Of this IC six outputs are used to drive the LEDs and a seventh output is used to reset the counter. This way […]
World’s first broadband infrared LED by Osram
https://www.electronics-lab.com/worlds-first-broadband-infrared-led-osram/
Designed for everyday food analytics, the SFH 4735 LED emits broadband infrared light in a wavelength range from 650 to 1,050 nanometers. by Julien Happich @ edn-europe.com The component is well suited as a light source for near-infrared spectroscopy, for example to assess the quality of food thanks to mini spectrometers that could be developed […]