![Castellated PCB Edges Castellated PCB Edges](https://www.electronics-lab.com/wp-content/uploads/2017/04/fabricated-pcb-scaled-1024x440.jpg)
Castellated PCB Edges
@ oshpark.com: Castellations are small plated edges, typically used for making circuit boards into small pcb modules. These are often seen on wireless modules, such as the ESP8266-12E. Castellated PCB Edges -...
Continue Reading![FPGA eink controller FPGA eink controller](https://www.electronics-lab.com/wp-content/uploads/2017/04/eink.png)
FPGA eink controller
Julien @ hackaday.io build a custom board to control e-ink display. He writes: The idea is to control an old broken kindle 3 eink display with a FPGA. I started looking at http://essentialscrap.com/eink/waveforms.html and http://spritesmods.com/?art=einkdisplay since eink constructor...
Continue Reading![Individually addressable incandescent lamps Individually addressable incandescent lamps](https://www.electronics-lab.com/wp-content/uploads/2017/04/pics-lamp_module1_large-600.jpg)
Individually addressable incandescent lamps
Michael wrote an article on controlling a bunch of lamps individually with WS2811 drivers and Arduino. [via] I simply used the same technology as LED strips to allow communication between lamp modules. LED strips have RGB LEDs with an embedded driver chip which uses PWM (pulse width...
Continue Reading![ESP32 Web Server – Arduino IDE ESP32 Web Server – Arduino IDE](https://www.electronics-lab.com/wp-content/uploads/2017/04/featured_image.png)
ESP32 Web Server – Arduino IDE
Rui @ randomnerdtutorials.com tipped us with his latest project. He writes: In this project you’ll create a standalone web server with an ESP32 that can toggle two LEDs using the Arduino IDE programming environment. If you want to learn more about the ESP32 dev board, read my...
Continue Reading![Smallest seismic sensor uses vibration spectral analysis Smallest seismic sensor uses vibration spectral analysis](https://www.electronics-lab.com/wp-content/uploads/2017/04/170418eedn_omron_seismic_sensor.jpg)
Smallest seismic sensor uses vibration spectral analysis
Graham Prophet @ eedesignnewseurope.com discuss about a new small seismic sensor from Omron: Omron Electronic Components believes it has the world’s smallest class size seismic sensor, specifically designed to trigger the shutdown of potentially hazardous or easily damaged systems...
Continue Reading![Simple circuit indicates a low battery Simple circuit indicates a low battery](https://www.electronics-lab.com/wp-content/uploads/2017/04/DI5385sch.png)
Simple circuit indicates a low battery
James Wood @ edn.com writes: The Design Idea in Figure 1 indicates a low-battery condition in an audio test instrument that is powered by four AA cells. As the instrument was otherwise an all-discrete design, this same approach seemed more in keeping with the spirit of the project...
Continue Reading![ESPurna-H, A Compact Open Source Hardware Wireless Power Wall Switch ESPurna-H, A Compact Open Source Hardware Wireless Power Wall Switch](https://www.electronics-lab.com/wp-content/uploads/2017/04/ESPurna-H.jpg)
ESPurna-H, A Compact Open Source Hardware Wireless Power Wall Switch
Controlling your AC loads using wireless power switch is not a new concept. Several commercial products from several vendors can be found on the market such as Xiaomi’s Mi Smart Socket Plug, SAMSUNG’s SmartThings Power Outlet and Sonoff Pow WiFi Switch from ITEAD. Using ESP8266...
Continue Reading![Exploring Eagle CAD ULPs #5 – Place50.ULP Place All Parts of The Board to The Position in The Schematic Exploring Eagle CAD ULPs #5 – Place50.ULP Place All Parts of The Board to The Position in The Schematic](https://www.electronics-lab.com/wp-content/uploads/2017/04/Place50-1024x554.gif)
Exploring Eagle CAD ULPs #5 – Place50.ULP Place All Parts of The Board to The Position in The Schematic
Welcome to the 5th post of the “Exploring Eagle CAD ULPs” series. Each post will be about one useful ULP in Eagle CAD. “ULP” User Language Program is a plain text file which is written in a C-like syntax and can be used to access the EAGLE data structures and to create a...
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