This flasher/beacon circuit can be employed as a distress signal on highways, a direction pointer for parking lots, hospitals, and hotels, etc. The circuit uses a power LED, and provides more light than a typical incandescent lamp flasher. Use of a 6V or 12V SLA lantern battery makes the circuit portable. The heart of the […]
HB-LED flashing beacon repurposes switching regulator Continue Reading
We analog designers take great pains to make our amplifiers stable when we design them, but there are many situations that cause them to oscillate in the real world. Various types of loads can make them sing. Improperly designed feedback networks can cause instability. Insufficient supply bypassing can offend. Finally, inputs and outputs can oscillate
https://github.com/stirobot/arduinoModularTFTgaugesI built a custom OBD II (on board diagnostics version 2 http://en.wikipedia.org/wiki/On-board_diagnostics) gauge in the clock of my Subaru BRZ (GT86, FRS) and a lot of people wanted me to build them one. Here is how you can build one of your own. My wife is about to give birth to our second son and
You don’t have two ears by accident. [Stoppi] has a great post about this, along with a video you can see below. (The text is in German, but that’s what translation is for.) The point to having two ears is that you receive audio information from slightly different angles and distances in each ear and your
Axiomtek – a world-renowned leader relentlessly devoted in the research, development and manufacture of series of innovative and reliable industrial computer products of high efficiency – is proud to introduce the MVS900-511-FL, its all-in-one fanless machine vision system with the real-time vision I/O and camera interfaces. Its vision I/O includes trigger input, trigger output, LED lighting control,
AXIOMTEK’S ALL-IN-ONE MACHINE VISION SOLUTION FOR AIOT – MVS900-511-FL Continue Reading
The purpose of a PLL is to generate a frequency and phase-locked output oscillation signal. To accomplish this objective, past methods primarily worked by adjusting the PLL output frequency often based on the phase error (i.e. the faster/slower phase relationship) to produce a temporary, non-constant frequency and phase-locked output oscillation signal. The constant fluctuation in
A voltmeter is an important tool on the workbench of every electronics hobbyist, maker or hardware design engineer. As its name suggests, allows the user to measure the voltage difference between two points. For today’s tutorial, we will look at how you can build an Arduino based DIY voltmeter, for use in situations where you
ARDUINO VOLTMETER USING SH1106 OLED DISPLAY Continue Reading
While almost everyone has a heater of some sort in their home, it’s fairly unlikely that the heat provided by a central heating system such as a furnace is distributed in an efficient way. There’s little reason to heat bedrooms during the day, or a kitchen during the night, but heating systems tend to heat
A good friend of mine who’s a teacher was doing quizzes in her class making students compete to answer questions… resulting in them complaining they raised their hands before the others. I decided to give her this quiz show type buzzer for Christmas to solve her problems. When one of the players press it’s button
There are several ways to produce a negative voltage from a positive voltage source, including using a transformer or two inductors and/or multiple switches. However, none are as easy as using the LTC3863, which is elegant in its simplicity, has superior efficiency at light loads and reduces parts count compared to alternative solutions. Advanced Controller
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