DHT22 Humidity datalogger
https://www.electronics-lab.com/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 than 65%, therefore I have to isolate […]
How to control LM2596 buck-converter with microcontroller
https://www.electronics-lab.com/how-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 about. Those buck converters will change the output voltage […]
How to build a simple laser tachometer
https://www.electronics-lab.com/how-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 – [Link]
Kristall 511 solder wire won´t dirt your PCB
https://www.electronics-lab.com/kristall-511-solder-wire-wont-dirt-your-pcb-2/
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 a given device might not focus on a solder used […]
DIY Digital Compass
https://www.electronics-lab.com/diy-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 powered by by the cigarette lighter or another source (batteries […]
Buck-boost regulator achieves high efficiency
https://www.electronics-lab.com/buck-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. The part accommodates a wide input voltage range of 1.8 V to 5.5 V and has an adjustable […]
Running Intel x86 apps on Raspberry Pi 1 and 2
https://www.electronics-lab.com/running-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 deploying ARM-based devices to cut costs. For example you can run Skype […]
Fully reprogrammable optical chip developed
https://www.electronics-lab.com/fully-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 scientists and engineers at the cutting edge of quantum technologies. Dr Anthony […]
Arduino playing the melody with the Sd card
https://www.electronics-lab.com/arduino-playing-the-melody-with-the-sd-card/
by sezgingul @ instructables.com: This project is in SD card loaded stolen melody is provided by command sent from the serial monitor. If you want to add the application var.siz 6-melody melody melody file must be the same as the name of the specified code name. The components are used: Arduino UNO, SD card reader, […]
Arduino Radar Tutorial: Fading an LED With My Breath
https://www.electronics-lab.com/arduino-radar-tutorial-fading-an-led-with-my-breath/
by build-electronic-circuits.com: I built this Arduino radar project, where I control the brightness of an LED with my breath. In this tutorial, I will show you exactly how to do it. It was an experiment to get the XeThru radar to work with Arduino. I plan to expand on this later, and build more useful applications. […]