Many of you may have seen the Adafruit PCB ruler (also used by the awesome Voltera). The design was actually adapted from my own design back in University! To improve on the original idea, I have created a reference business card. Here is a computer render of the design: PS. The dots on the […]
Making a PCB Business Card Read More »
Telit and SiTime say they’ve made the the world’s smallest and lowest power GPS receiver with extended hibernation periods at 15µA while maintaining Snap Start to less than one second. The receiver uses Telit’s Jupiter SE880 and SiTime’s MEMS SiT15xx oscillators. SiTime’s devices claim to offer offer area savings of 85%, cut power by 50%
Smallest GPS receiver from SiTime/Telit Read More »
A team of Michigan State University (MSU) researchers has created a transparent solar concentrator able to turn any window (or other sheet of glass, such as the screen for a smartphone) into a photovoltaic solar cell. What makes this development different? The panel is truly transparent. A new solar cell recently developed by a team
See-through solar concentrator harvests energy from sunlight Read More »
Power processing is one of the most important aspects on electronic design. The power is unique for a typical system because it gives the system life. Before starting to make the project for a power supply we need to analyze some aspects: Which kind of radio/electromagnetic interference is the device going to face ? What
Hardware Protection – OverVoltage and OverCurrent Read More »
Classic push-button switches are favorite for many decades, maybe also because they´re well known already from the beginnings of electronics. Probably, a nostalgia is not the only reason making them popular, but mainly an easy control, when even an unacquainted person knows, that it´s something “what has to be pushed” to change a status of
Marquardt 1841 – above standard classics Read More »
In this article we will review the basic transistor types and their function. We will cover bipolar transistor, Junction FET, MOSFET and UJT transistor types. Feel free to comment with other transistor types you know. Bipolar Transistor Bipolar transistors are three terminal devices and act like electrically controlled switches of as current/voltage amplifiers. They
[Article] Basic Transistor Types Read More »
PyroEDU began in 2012 with the mission of offering free online courses teaching the fundamentals of electrical engineering in an approachable and entertaining manner. Rather than studying textbooks and advanced mathematics, students are taught using a learn-by-doing approach that follows four basic steps: introduce the topic, explain the theory, build an experiment to demonstrate the
An introduction to sensors Read More »
This reference design is a simple ultrasonic atomizer that helps fight against respiratory diseases. Atomizer is like nebulizer, it is just that nebulizer takes time to deliver liquid to mist. However, both undergo almost the same process. This medical ultrasonic atomizer circuit is composed of power supply circuit, ultrasonic oscillator and atomizer circuit. It specifically
Ultrasonic Atomizer Read More »
A team of researchers at the University of California, Los Angeles have designed a relatively low-cost smartphone add-on device that turns it into a mobile DNA imaging tool. Techniques using optical microscopy have found numerous applications in biology, chemistry and physics but they require relatively expensive, bulky and complicated instruments that cannot be easily transported
Smartphone Becomes DNA diagnostic tool Read More »
Durante as oficinas semanais de IoT no LHC, vimos que algumas placas de desenvolvimento utilizando o ESP8266 estavam surgindo, como a nodeMCU e o ESP-201, porém resolvemos criar a nossa própria placa, atendendo as nossas necessidades. Surgiu então o nodeLHC! A principal razão para a criação da placa, foi que a maioria das pessoas que
nodeLHC – Placa de desenvolvimento para o ESP8266 Read More »
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