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First bufferless 1.5 μm III-V lasers grown directly on silicon wafers in Si-photonics

“Researchers from the Hong Kong University of Science and Technology (HKUST) have reported the world’s first 1.5 μm III-V lasers directly grown on the industry-standard 220 nm SOI (silicon-on-insulators) wafers without buffer, potentially paving an opening to …

Giant Remote Controlled Theater Clock

“For the 2020 Brighton High School Musical production of Cinderella, the directors needed a large clock. It needed to be lit from inside and be able to move on cue. The director thought he had another way of doing this …

Hello Train! ATtiny 1614

“For my Fab Academy class I have to create a board with a microcontroller, a button and a LED. I will use Eagle to create it. I will use the ATtiny 1614, so I will use the reference of the …

Innovative Switching Mechanism Improves Ultrafast Control of Microlasers

“New mechanism breaks the long-standing limitation of all-optical switch for optical and quantum computing All-optical switch is the fundamental building block of optical communications, optical computing, as well as quantum information. An innovative approach utilizing the far field characteristics of …

Interactive Internet Clock

“Today, I would like to share how to make an internet clock with interaction effect by P2.5 RGB LED MATRIX 64x64. This clock not only displays the time but also interacts with our motion. It simulates the LEDs as …

Keycode Security Starter, Part 1

“If you are like me, you enjoy the charm of driving an older vehicle. The mechanical feedback from the car is more organic. You aren’t surrounded by safety and driver aid systems that jump at the opportunity to correct …

Learn 741 op-amp circuits basic with example

“We often see the LM741 circuit in many projects. Sure, You can do them. But… Will it is more fun if you understand how it works? Do not worry at all. I always try to work it easy for you …

Linux Powered USB TableClock

“Linux Power USB Table clock is Raspbian Lite Linux powered table clock. It is made to be used especially by night owls like me who want to see a quick time but it’s too bright LCD to check the …

LM317 Current Boosting Secrets!

“LM317 Current Boosting Secrets! LM317 is one of the most popular adjustable regulator chips. The output voltage of the regulator can be adjusted from 1.25V to 35V. However, the chip can deliver currents up to 1.5A which is …

Minimal parts simple word clock

“Simple word clock using 2812b leds. This was a project I wanted to do when I saw it on project hub, but using shift registers, external power supply and complicated wiring didn’t allow me to pursue it. When 2812b …