WiFi Weather display using a Wemos D1 board and operweathermap.org website
Arduino

WiFi Weather display using a Wemos D1 board and operweathermap.org website

educ8s.tv published a new project, a ESP8266 Wifi weather display. In this video we are going to build a WiFi Weather display with the impressive Wemos D1 board. The board uses the ESP8266 chip in order to connect to the internet and we are going to program it using the Arduino IDE....

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Dual axis solar tracker with online energy monitor
Photovoltaic

Dual axis solar tracker with online energy monitor

by geo bruce @ instructables.com: The features of this solar tracker are: Solar tracking: making sure the solar panels are aligned to the sun as long as possible. Energy monitor: This measures the voltage and the current generated by the panels and calculates the generated...

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Seeed Studio miniature soldering iron – Review
Tools

Seeed Studio miniature soldering iron – Review

by Harry Baggen @ elektormagazine.com The Chinese company Seeed Studio offers a lot of interesting things for electronics enthusiasts. Along with selling products from various manufacturers, Seeed develops and produces their own products, many of which are very innovative. For...

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Very low power temperature sensor
Sensor

Very low power temperature sensor

Smartec has commenced selling a new temperature sensor as the successor to the SMT160: the SMT172. The SMT172 has a superior performance, such as a very low power consumption (60 μA) , a very high accuracy (0.1 °C) and a very high resolution (0.1 mK). [via elektormagazine.com] For...

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Quantum dots shrink on-chip lasers to 1μm
Science

Quantum dots shrink on-chip lasers to 1μm

by Julien Happich @ edn-europe.com Published in Applied Physics Letters under the title "Sub-wavelength InAs quantum dot micro-disk lasers epitaxially grown on exact Si (001) substrates", the findings from an international team of researchers opens a new route to CMOS-compatible...

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Eagle – Create Nixie tube footprint
Software

Eagle – Create Nixie tube footprint

lucadentella.it shows us how to create a Nixie tube footprint by placing the pads in a circular way. I’m working with Eagle to prepare a PCB for a Nixie clock. I wasn’t able to find a library for the Nixie I chose so I had to create it from scratch. Eagle – Create Nixie tube...

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Chrome Apps and serial port communication
Software

Chrome Apps and serial port communication

Luca Dentella writes: During the development of my electronic projects, I sometimes need to develop a graphical user interface (GUI) that talks using serial communication with the devices I create. In the past, I usually chose to develop those interfaces in C# and using the .Net...

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4.183
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Dark Sensitive Lamp ON/OFF Controller
Power

Dark Sensitive Lamp ON/OFF Controller

Dark Sensitive Lamp controller project switches a load connected to it when light falling on LDR (Light Dependent Resistor)  goes bellow set point.  It could be used as an automatic street light application. The project is based on Triac and doesn’t requires additional DC supply,...

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