Build Your Own PICKit 2 Programmer
https://www.electronics-lab.com/build-your-own-pickit-2-programmer-2/
pulsetronics.blogspot.com.ng has build a nice version of PICKIT Programmer: This is my PICkit 2 clone design. Its based on a simplified version of the Microchip PICkit 2 schematic and only supports 5v parts. It works with all the Microchip software including MPLAB, MPLABX,the PICkit 2 GUI Programming software and the PICkit 2 command line software. […]
Arduino Project: MP3 player using Arduino and DFPlayer mini MP3 player module
https://www.electronics-lab.com/arduino-project-mp3-player-using-arduino-and-dfplayer-mini-mp3-player-module/
Building an MP3 player with Arduino is extremely easy. We use the DFPlayer mini in order to build a simple MP3 player. The MP3 player has 3 buttons, in order to Play/Pause, to load the next song and one in order to load the previous song. In this video we are using an Arduino Uno, […]
Understanding silicon circuits: inside the ubiquitous 741 op amp
https://www.electronics-lab.com/understanding-silicon-circuits-inside-the-ubiquitous-741-op-amp/
Ken Shirriff’s blog looks inside the famous 741 OPMAP and discuss how it’s made and how it’s working: The 741 op amp is one of the most famous and popular ICs[1] with hundreds of millions sold since its invention in 1968 by famous IC designer Dave Fullagar. In this article, I look at the silicon […]
Elektor DDS Function Generator
https://www.electronics-lab.com/elektor-dds-function-generator/
this is a DDS Funtion Generator by Theodorou Gerasimos: DDS chips are readily available, greatly simplifying the design of the analog part of a wide-range function- or signal generator. All you need to do (they say!) is choose one, add some suitable output circuitry, pick a microcontroller, provide a user interface and start programming. To […]
19″ system of enclosures will provide you unexpected space
https://www.electronics-lab.com/19-system-of-enclosures-will-provide-you-unexpected-space/
With plug-in enclosures from Fischer Elektronik, it´s easy to solve placing your device into a 19“ „rack“. What enclosure to use for your electronic device and how to sort them when there are several ones on one place? That´s the question reaching almost to beginnings of electronics. No wonder, that since those times a lot […]
Sensor Technology for Health and Fitness Applications
https://www.electronics-lab.com/sensor-technology-for-health-and-fitness-applications/
By Jon Gabay @ digikey.com: Determining the state of our health has always been a matter of finding a way to monitor and measure the body’s most basic functions. Before instrumentation, visual indicators were used that allowed us to know, for example, what our body temperature should be, what a healthy pulse is, and what an […]
Website is Down Detector
https://www.electronics-lab.com/website-is-down-detector/
by jckelley @ instructables.com: If you work in a company that has a website, you know how important it is that the website always be up and running. That’s why you constantly see “99.99999% reliability!” all over the fancy server hosting sites. A website can’t make money if the system is down, so knowing when that […]
How to Make an Internet Speed Analyzer
https://www.electronics-lab.com/how-to-make-an-internet-speed-analyzer/
This is an internet speed Analyzer based on Raspberry Pi: This application will run speedtest-cli against speedtest.net’s servers using cron. It will then email the results daily and weekly. Also – using http://www.percheron-electronics.uk/shop/ e-paper hat – you can utilize the buttons to run the speed-test manually and display the results to the screen. To use […]
Lie Detector and Biofeedback Arduino Based
https://www.electronics-lab.com/lie-detector-and-biofeedback-arduino-based/
by masteruan @ instructables.com: This tutorial will explain how to build a machine for biofeedback. But first a bit of theory. What is biofeedback? Biofeedback is the process of gaining greater awareness of many physiological functions primarily using instruments that provide information on the activity of those same systems, with a goal of being able to […]
Wrist Mount Digital Altimeter
https://www.electronics-lab.com/wrist-mount-digital-altimeter/
This project is a simple wrist mount digital altimeter which is a device used to determine altitude. This design uses atmospheric pressure to calculate the altitude of its location. The lower the atmospheric pressure, the higher the altitude. The project is comprised of a microcontroller (MCU), an 84×84 pixel graphic LCD and a barometric pressure […]