Raj @ embedded-lab.com has designed a new version of his Easy Pulse Sensor. This revision is an add-on board in mikroBus form factor, which enables easy integration with mikroElektronika‘s numerous development boards. It also operates on the principle of transmittance...

U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has developed a way to assemble transistors based on the 2D materials graphene and molybdenum disulfide. By Peter Clarke @ edn-europe.com The method etches narrow channels in conducting graphene...

shubhamtrivedi95 @ instructables.com shows how to interface a 16x2 LCD display on Raspberry Pi. Sample code is provided. LCD 16x2 Interface with Raspberry Pi -...

abhyu1112 @ instructables.com provides code for thermocouple interface to Arduino and Nokia 5110 LCD display. This is a connection between arduino mega thermocouple and Nokia 5110 screen to display temperature which ranges till 1000*C. It can be used to measure temperature of...

Ted Yapo has designed a multi-year always-on LED replacements for gaseous tritium light sources. TritiLEDs are always-on battery powered LED glow lights for general night-time marking use. Radioactive gaseous tritium light sources (GTLSs) are allowed in the United States in several...

Johan Kanflo’s Esprog pogo pin connector: The FTDI connector can be found on just about any ESP8266 design. If you are building a gadget to be deployed somewhere and not a full blown development board, the FTDI connector is somewhat overkill. And it is quite large. A few pins...

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...

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...