The principle advantages of LED lighting are its long life, which can be as long as 60,000 hours, or 20 years, and inherent energy efficiency. LED streetlights have been shown to use 15% of the energy and give off less heat, while generating more light per watt. LEDs do not contain toxic chemicals such as […]
Passive device improves reliability of LED streetlights Read More »
Features Extended Safe Operating Area Maximum Output Current: 800mA Stable with or without Input/Output Capacitors Wide Input Voltage Range: 1.2V to 36V Single Resistor Sets Output Voltage Output Current Monitor: IMON = IOUT/5000 Junction Temperature Monitor: 1μA/°C Output Adjustable to 0V 50μA SET Pin Current: 1% Initial Accuracy Output Voltage Noise: 27μVRMS Parallel Multiple Devices
LT3089 – 800mA Single Resistor Rugged Linear Regulator with Monitors Read More »
I wanted to do a follow-up to my last clock build, the MSP430 Analog Gauge Clock, reusing some of the code from that project, and I had an IV-18 vacuum florescent display (VFD) tube that I bought on Ebay. Also, I wanted to finish the project before Christmas break was over. That didn’t happen. But
MSP430 VFD Clock – Manhattan Style Read More »
A WiFi (Wireless Fidelity) is a technology that uses the 2.4GHz UHF and 5GHz SHF ISM radio bands to allow devices such as computers, smartphones, digital cameras, tablet computers, etc. to network. Nowadays the WiFi technology is being used by cities to provide free or low-cost Internet access to residents. The WiFi is inexpensive and
Wearable WiFi Detector Read More »
LG Chem has supplied 1,100 OLED reading lights to the KwanJeong Library at Seoul National University (SNU), claiming it to be the biggest OLED lighting installation yet. “SNU adopted OLED lighting for the library’s reading lights because it is energy efficient and is comfortable to the eyes,” said the firm, claiming: “OLED lighting comes closest
Largest OLED lighting installation Read More »
ESP8266 Troubleshooting – NodeMCU Flasher Where do I download the NodeMCU flasher? Go to the NodeMCU flasher GitHub repository and download the flasher for your Windows PC bit version by clicking the button that says “Raw”: NodeMCU flasher Windows 64 bits NodeMCU flasher Windows 32 bits Which settings should I use with the NodeMCU flasher? The
ESP8266 Troubleshooting Guide Read More »
Most projects include at least one LED. Before soldering the LED, how can you determine if the color and brightness meets your needs? After that, how do you calculate the correct value resistor? Many years ago, I built a handy compact LED testing tool based on the LM317L adjustable current regulator. (You’ll definitely want to
LED Test Tool with LCD Display Read More »
Researchers at TU/e have developed a very tiny wireless temperature sensor that is powered in a very special way: from the radio waves that are part of the sensor’s wireless network. This means that the sensor needs not even a single wire, nor a battery that would have to be replaced. The arrival of such
The world’s tiniest temperature sensor is powered by radio waves Read More »
ARM has brought out a set of IP for top-of-the-range mobile devices due to launch next year. The IP suite includes: an ARMv8-A-based Cortex-A72 processor, an ARM CoreLin CCI-500 Cache Coherent Interconnect and an ARM Mali-T880 GPU delivering up to 4K120fps performance and console-class gaming, all optimised for TSMC’s 16nm FinFET+ process with ARM POP
ARM launches IP suite for 2016 mobile devices Read More »
The Minibot is a small autonomous robot vehicle that uses phototransistor that can detect lightness patterns on the ground to follow the edges of the dark lines. It has a MC9RS08KB4 MCU, coin cell, motor, and a phototransistor. The MC9RS08KB4 is part of the MC9RS08KB12 series, a family of RS08KB 8-bit microcontrollers. It features a
MC9RS08KB4CFK Minibot Read More »
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