ESP8266 based plane spotter
A how-to on building an ESP8266 based plane spotter from Daniel Eichorn: In order to get this project running you’ll need the following list of hardware: NodeMCU ESP8266 module or Wemos D1 Mini 0.96″ SSD1306 OLED display A few connectors and USB Wire Or order a...
Continue Reading850nm infrared LED outputs 770mW at 1A
by Julien Happich@ edn-europe.com Designed for infrared illumination for cameras, surveillance systems or machine vision, the Oslon Black SFH 4715A infrared emitting diode (IRED) boasts a low thermal resistance of maximum 11K/W, delivering a 850nm beam with an optical output of 770mW...
Continue ReadingHeat Activated Cooling Fan Controller
Heat activated cooling fan controller is a simple project which operates a brushless fan when the temperature in a particular area goes above a set point, when temperature return normal, fan automatically turns off. The project is built using LM358 Op-amp and LM35 temperature Sensor....
Continue ReadingLimiting Inrush Current
aimtec.com has a basic article on how to limit inrush current using passive components. Inrush current or input surge current refers to the maximum, instantaneous input current drawn by an electrical device during its initial turn on. Power converters also feature high inrush...
Continue ReadingWireless mood light with Arduino & BLYNK
sagnikb7 @ instructables.com show us how to build a wireless mood lamp using Arduino and BLYNK app. In this tutorial we will be creating a MOOD (you can create any color you can imagine to fit your mood) light, that can be controlled from your smartphone, we will be creating the APP...
Continue ReadingBifacial solar cells boost efficiency
by Harry Baggen @ elektormagazine.com: The Belgian nanoelectronics research center Imec has developed a very efficient bifacial n-PERT (BiPERT) solar cell technology with a bifaciality factor of nearly 100%. The cell efficiency at the rear is nearly as high as the efficiency at the...
Continue ReadingArduino 8 Digit, 7 Segment BCD Counter using MAX7219
PugazhM @ instructables.com show us how to make a 7 segment BCD counter using MAX7219 and Arduino. In Embedded system design, seven segment displays are playing a major role as numerical visual indications. Seven segment LED displays are brighter, more attractive and provide a far...
Continue ReadingLT8335 – Low IQ Boost/SEPIC/ Inverting Converter with 2A, 28V Switch
LT8335 is a current mode, 2 MHz step-up DC/DC converter with an internal 2A, 28V switch. It operates from an input voltage range of 3V to 25V, suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs. The LT8335 can be...
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