ESP8266 Weather Widget

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deba168 @ instructables.com has build an ESP8266 based OLED display weather widget.

This is an ESP8266 based Weather Display unit which retrieve localized weather information from http://www.wunderground.com/ by WLAN and display it on a 128×64 OLED Display.

ESP8266 Weather Widget – [Link]

RELATED POSTS

Meet ESP32, New Big Brother to IoT Board ESP8266

ESP32

Alasdair Allan @ makezine.com discuss about a new IoT board released from the company that makes the ESP8266.

The ESP8266 chip, and the boards based around it, have been the new hot new thing this past year. Overnight it became — almost by stealth — one of the leading platforms for the Internet of Things. This runaway success quickly gathered a community, and it’s possible Espressif Systems may repeat that next year with their new ESP32 chip.

Meet ESP32, New Big Brother to IoT Board ESP8266 – [Link]

Prometheus: Circuit Boards in Minutes

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Prometheus is Not a 3D printer – it quickly carves, drills, and shapes your PCB so you don’t have to wait for a delivery truck.

Prometheus makes real circuit boards in just minutes. When we’re prototyping, we need a tool that can give us nearly instant feedback – not feedback that comes in a few week’s time in the form of a PCB delivery. Let the PCB manufacturers make the hundreds or thousands of boards for your production run – not your prototypes. If production is your goal, Prometheus will help get you there faster.

Prometheus: Circuit Boards in Minutes – [Link]

LT8331 – Low IQ Boost/SEPIC/ Flyback/Inverting Converter

8331

Linear Technology Corporation announces the LT8331, a current mode step-up DC/DC converter with an internal 500mA, 140V switch. It operates from an input voltage range of 4.5V to 100V, making it suitable for use with a wide range of input sources found in industrial, transportation and avionic applications. The LT8331 can be configured as either a boost, SEPIC, flyback or inverting converter. Its switching frequency is programmable from 100kHz to 500kHz, enabling designers to minimize external component sizes.  Burst Mode® operation reduces quiescent current to only 6µA while keeping output ripple below 20mVP-P. The combination of a high voltage MSOP-16E package and tiny externals ensures a very compact footprint while minimizing solution cost.

LT8331 – Low IQ Boost/SEPIC/ Flyback/Inverting Converter – [Link]

PINE A64, First $15 64-Bit Single Board Super Computer

PINEA64

PINE A64 is the world’s first 64-bit expandable Quad Core 1.2Ghz supercomputer, tablet, media center, and more… starting at just $15.

PINE A64 is not only a computer, it is a super affordable 64-bit high performance expandable single board computer (SBC). Whether you are an IT professional, electronics hobbyist, student, teacher, hacker, inventor, or just someone who wants to have more flexibility to increase their productivity at work, the PINE A64 is a computer board made for everyone. Enjoy more fun and entertainment at home with endless possibilities.

PINE A64, First $15 64-Bit Single Board Super Computer – [Link]

Supercapacitors to replace batteries?

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by Martin Cooke @ elektormagazine.com:

It was reported last year that researchers at Rice University in the US, led by chemist James Tour had developed a method of producing a form of graphene on commercial polyimide plastic sheet by zapping it with a laser. The process is called LIG (Laser Induced Graphene). The resulting graphene layer is not a conventional flat sheet made up of hexagonally-organized atoms but instead a spongy array of graphene flakes attached to the polyamide, giving a greatly increased surface area. This property can be exploited to build supercapacitors.

Supercapacitors to replace batteries? – [Link]

NerO – An Energy Efficient Arduino UNO Compatible Design

NerO

A reference design for an Arduino UNO compatible board based on the FTDI FT231X USB UART, delivers 5V at a full 1A without overheating.

The UNO R3 is the staple of most Arduino based projects but it’s been around for a number of years and many of the features have been improved for example by Adafruit and Sparkfun who make excellent enhanced UNO compatibles. However, our additional requirements for a full 1A current without excess heat dissipation and FCC/CE conformity led us to consider a new 3rd party UNO compatible reference design that met these requirements hence the inspiration behind NerO

NerO – An Energy Efficient Arduino UNO Compatible Design – [Link]

Creator Ci40: The ultimate IoT-in-a-box dev kit

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A complete IoT kit that includes all the hardware, software, and cloud infrastructure needed to quickly build a wireless IoT system.

The Creator™ Ci40 IoT kit includes not only the hardware building blocks needed to quickly prototype a wireless IoT system from scratch but most importantly the open source software frameworks, the network stacks and the cloud connectivity capabilities required to securely connect and authenticate devices to the cloud.

Creator Ci40: The ultimate IoT-in-a-box dev kit – [Link]

LT8714 – 80V/5A synchronous 4-quadrant DC/DC controller

8714

Linear Technology Corporation announces the LT8714, an 80V input synchronous PWM four quadrant output DC/DC controller. This device cleanly transitions the output voltage through zero volts with up to 5A sourcing and sinking current capability, regardless of the output voltage polarity, making it ideal for regulating to positive, negative, or zero volts. The bipolar output enables the LT8714 to source or sink current, regardless of the output voltage polarity. Applications include bidirectional current sources, test systems, high power low frequency signal amplification, back body biasing, thermoelectric coolers (TECs) and electronic window tinting

LT8714 – 80V/5A synchronous 4-quadrant DC/DC controller – [Link]

 

Arduino Tutorial: Using the Soil Moisture Sensor along with a Nokia 5110 LCD display

Using the soil moisture sensor with an Arduino can’t be easier. Adding a Nokia 5110 LCD display makes things more professional since we can visually check the moisture levels of the soil.

The sensor can measure the levels of moisture in the soil. So it can be extremely useful if you want to monitor the soil moisture of your plants or automate the watering procedure. Let’s see the project we are going to build today. I have one cup in front of me with dry soil. If I place the sensor in the cup we can read a low soil moisture value at the Nokia 5110 display. If I pour some water in the cup you can clearly see that the moisture levels rise. The project is working fine and we can visually check the moisture levels of the soil. Of course this is just a demonstration of the sensor, I am going to build more useful projects in the future with this sensor. Let’s now see how to build this simple project.

Arduino Tutorial: Using the Soil Moisture Sensor along with a Nokia 5110 LCD display – [Link]