Month: August 2015
DHT22 Humidity datalogger
by luckyresistor.me: There is a large cellar where I could store unused items and documents, but the catch is the humidity there. It is a root cellar near a small brook and the humidity varies between 75% up to 90%. Archived material should never be exposed to humidity greater...
Continue ReadingHow to control LM2596 buck-converter with microcontroller
by hugatry @ hackvlog.com: Every now and then someone asks on different forums if there is an way to control cheap LM2596 modules with an Arduino or another microcontroller. I decided to demonstrate one solution that might be basic electronics for some, but still many don’t know...
Continue ReadingHow to build a simple laser tachometer
Did you know you can use an LED as a light sensor? In this video I show you how to use this phenomenon to build a laser tachometer capable of measuring the RPM of mechanical devices. How to build a simple laser tachometer -...
Continue ReadingKristall 511 solder wire won´t dirt your PCB
Innovative flux and a high qualty alloy provide to Stannol Kristall 511 solder wire excellent processing properties with a minimum of clean transprarent residues. You, who are at production of electronic devices, know, how important is a choice of a suitable solder. A designer of...
Continue ReadingDIY Digital Compass
by DaAwesomeP @ instructables.com: I'm astounded that some cars don't have a digital compass always visible. You either have to launch the navigation app each time which may even disappear when you adjust the radio. In this project, you'll create a digital compass that can be...
Continue ReadingBuck-boost regulator achieves high efficiency
by Susan Nordyk @ edn.com: Using adaptive current-limit PFM (pulse frequency modulation) control, the ISL9120 switching regulator from Intersil realizes efficiencies of up to 98%, while automatically transitioning between buck and boost modes without significant output disturbance....
Continue ReadingRunning Intel x86 apps on Raspberry Pi 1 and 2
ExaGear Desktop is virtualization solution which opens up a host of new possibilities for running apps across platforms. ExaGear Desktop makes it possible to run Intel x86 application on ARM-based devices, and is targeted to individuals running ARM-based Mini PCs and to businesses...
Continue ReadingFully reprogrammable optical chip developed
by Graham Pitcher @ newelectronics.co.uk: Researchers from the University of Bristol and NTT in Japan have developed an optical chip that can process photons in an infinite number of ways. According to the team, the fully reprogrammable chip marks a 'new era of research' for...
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