WebRadio player 2 (ARM 32-bit Cortex-M0)
https://www.electronics-lab.com/webradio-player-2-arm-32-bit-cortex-m0/
Vassilis Serasidis build a simple Webradio player based on ARM 32-Bit Cortex-M0. He writes: On 31 August 2015, I received the new WIZnet platform board, the WIZwiki-W7500, which is based on a Cortex-M0 CPU running at 48MHz, with 128 kBytes of flash memory and 48 kBytes of RAM shared with the hardwired TCP/IP core. The […]
ESP8266-based touchscreen clock and light controller with WiFi
https://www.electronics-lab.com/esp8266-based-touchscreen-clock-and-light-controller-with-wifi/
Spiros Papadimitriou build a nice clock based on ESP8266 Wifi and 2.4″ LCD module. He writes: This was a week-long hack, to build a simple touchscreen clock, with the following features: Graphical UI with touch (no buttons) Clock synchronization over NTP Ability to control WiFi-connected LED lamps Web-based configuration UI This project was partly inspired […]
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 […]