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22 Dec 2014


Moreover, new UMTS/HSPA module Quectel UG95 is pin-compatible with GSM/GPRS module M95 thus offering extraordinarily simple way to migrate to 3G without a PCB redesign.

To have a possibility to choose a component on a given PCB place according to our wish is certainly advantageous. For example in audio equipment to use a simple operating amplifier (for less demanding applications) or in other case to use a pin-compatible high-end operating amplifier for more demanding applications (on the same PCB position). This compatibility is common in some fields, in other ones not that much …

In a segment of GSM/GPRS/UMTS modules is this compatibility a sort of an exception, so arrival of the new Quectel UG95 module on the market can be an interesting solution how to use the same design for smaller GSM/GPRS/EDGE connection (with the M95 module) and also for a substantially faster UMTS/HSPA connection with the UG95 module.

Do you use 2G module M95 and you wish for a higher transfer speed?

UG95 offer extraordinary possibility to design your device able to work with M95 or also with UG95 module. UG95 features more pins than M95 but their position is compatible, so at a PCB design it´s possible to place all pins on a PCB and their real use will depend on whether you´ll use M95 or UG95.In result it´s possible to assemble the same PCB with M95 or UG95 module according to given application requirements.

UG95 is based on a new Intel XMM6255 chipset. In general, UMTS/HSPA transfer offers not only a higher transfer speed of pictures and data but mainly higher reliability of connection even in hazard conditions. That can be very important for critical applications like telemetry, process control, security and similar. Because from a new module we usually expect enhanced functionality, even in this field the UG95 has what to offer, for example:

  • rich set of internet protocols – TCP/UDP/PPP/MMS*/SMTP*/FTP*/SSL* (*-in development)
  • standard industrial interfaces – USB 2.0/UART/I2C/PCM
  • high sensitivity and top-class audio algorithms, digital audio output (PCM)

New module is available in a form of the module itself – UG95EA-02-NCH-STD (suitable for a mass usage into a target appliance) and also in a form of a known „adapter board“ UG95-TE-A mainly intended for development using the UC20EVBKIT development kit.

Detailed information will provide you the UG95 presentation, UG95 specification and the document Quectel UG95&M95 compatible design.

UMTS module UG95 = reliable transfer even in hazard conditions - [Link]

22 Dec 2014


by kiranshila @ instructables.com:

I have recently acquired an Intel IoT Developer Kit as part of an Instructable Campaign. I am familiar with some embedded processing models and microcontroller environments such as the Arduino, but I found getting up and running with the Intel Edison to be a bit chaotic. I wanted to consolidate the information that I found to help fellow makers ease into this cool device.

A Comprehensive Intel Edison Getting Started Guide - [Link]

22 Dec 2014


by physicsenthusiast:

In this tutorial, you will learn how to build a device that lets you feel radiation in your vicinity on your fingertips, and, if tuned well, feel cosmic rays passing through your hands. You will build it starting only with Geiger Muller tubes, fairly standard electronics components, and RFDuinos. The basic steps are to create a high voltage supply in which to suspend your tubes, process pulses from your tubes and feed them into an RFduino, and then use RFduino’s GZL library to radio events to a glove with vibrating motors attached to the fingertips. (RFDuino also makes it very easy to read data into an iPhone app, if you feel like going further).

Networked Cosmic Ray Detector: Feel Radiation on your Fingertips - [Link]

22 Dec 2014

Imagine you are traveling the beautiful Icelandic countryside. You and your significant other have found the perfect place for a picture, and you both look stunning that day. But there is no one around to take it for you! You go for the selfie, but your arm just isn’t long enough to do justice to the landscape.

Introducing the Selfiebot! This robot is designed to track faces and take pictures of you and your friends, completely autonomously. The system allows the user to set a number of parameters specifying image properties, centering properties, and photo taking parameters. We used OpenCV running on a laptop computer for image processing and facial detection, and relayed scanning and centering commands to the robot via serial communication to the ATmega 1284 microcontroller.

Selfiebot – Your personal photo companion - [Link]


22 Dec 2014


Raj from Embedded Lab has designed this breadboard friendly adapter for rapid prototyping with the ESP8266 serial-to-wifi module. It receives a ESP-01 model ESP8266 transceiver through a 2×4 female header and provides easy access to those pins through two single row headers that are breadboard friendly.

ESP8266 adapter for easy breadboarding - [Link]

20 Dec 2014

by Connor Archard and Feiran Chen @ cornell.edu:

Our final project was to create a rapid prototyping machine for electrical circuits by repurposing an old pen plotter that we fitted with an electrically conductive pen. Our plotter utilized an atmega 1284P to control the x and y-axis motors, and to raise and lower the pen. We created a web app that allowed a user to draw out circuits quickly, and then send them to be printed out on our plotter over a wifi network as our host computer that maintained the serial connection with the atmega 1284P. The atmega 1284P would receive vectors of x and y coordinates from the host computer that would instruct it on how to move the plotter head. By measuring the position of the plotter head on each axis through the on-chip ADC and two servo potentiometers, we were able move the plotter head to an accuracy of approximately 1/10th of an inch on a typical piece of A4 paper.

Rapid Circuit Prototyping – Circuit Plotting - [Link]


20 Dec 2014


This camera module can perform image processing such as AWB (auto white balance), AE (automatic exposure) and AGC (automatic gain control), for the video signal coming from CMOS sensor. What’s more, in fusion of other advanced technology such as image enhancement processing under low illumination, and image noise intelligent forecast and suppress, this module would output high quality digital video signals by standard CCIR656 interface. OV7670 built-in JPEG decoder supported reatime encoding for collected image, and external controller can easily read the M – JPEG video streams, achieving the camera design of double stream. OV7670 supported motion detection and OSD display function of screen characters and pattern overlay, capable of self-defining detection area and sensitivity.

OV7670 Camera Module DIY Guide - [Link]

20 Dec 2014


by Suzanne Deffree:

The holiday season is in full swing and you may still have a few people to check off your gift-giving list. If you’re at a loss for what to buy the open-source-focused engineer or maker in your life, take a gander at these 8 open-source gifts.

In this list you’ll find out-of-the-box devices, kits, and components for DIY designing, some starting as low as $19.99, with others topping $2100. Be sure to share your own open-source favorites in the comments section and let us know what you think of the ones we’ve included on this list.

8 open-source holiday gifts - [Link]

20 Dec 2014

by w2aew @ youtube.com

The Humanalight is a simple single-cell flashlight kit that will produce usable light, even from a “dead” AA battery. Circuits like these are often called a Joule Thief. This term has been applied to just about any circuit that allows you to boost the voltage from nearly depleted batteries for some other low-power application – such as lighting an LED. Strictly speaking, a Joule Thief circuit is an Armstrong style blocking oscillator that uses a bifilar wound transformer and relies on the saturation characteristics of the core to produce oscillation. This flashlight uses a simple two-transistor relation oscillator. A description of the circuit is given, and its operation is examined by viewing the waveforms on an oscilloscope. The proceeds from the sale of this kit benefit the “Ears To Our World” charity which provides self-powered radios and other technology to rural, impoverished and remote regions of the world.

Circuit Walkthrough: A single cell LED light - [Link]

19 Dec 2014


MUNICH — At Electronica last week, the LED manufacturer Everlight introduced what it claims to be the world’s first colour-temperature tunable LEDs in a simple chip on board (COB) package.
After brightness dimming, tunable color temperature is a feature that allows end users to tune the warmth of the light they receive. Typically, this feature is implemented through the use of multiple LEDs binned from cool white to warm white, behind a diffuser.

With its CHI3030 27V/29W series, Everlight claims to have a very compact solution, with LEDs packaged behind concentric layers of phosphors offering different color temperatures of white. Depending on how much warm white or cool white you choose to light up, you can get a precise color-temperature mix.

New LEDs offer tunable color temperature - [Link]





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