This video by Ray Wang demonstrates HID-class USB serial communication for AVRs using the V-USB library:
Serial communication is helpful for debugging and checking sensor values, and HID-class means it can work on all operating systems without driver installation. This is useful for many software-only USB projects such as based on ATmega328 or ATtiny45/85. To receive and send messages between the device and host, I wrote an HID serial monitor, similar to a standard serial monitor, using Processing.
HID-class USB Serial communication for AVRs using V-USB - [Link]
ezflyr posted his new project, the GPS to Xbee Bridge:
Here is my latest project, a ‘GPS to Xbee Bridge’. This project utilizes a USGlobalsat BR-355 GPS receiver, and an Xbee module to wirelessly transmit a GPS-derived time/date info packet to a variety of home-brew clocks around my home! These clocks consist of an odd mix of Nixie Tube clocks and GLCD clocks that I’ve design and built over the years! The design is based on a PIC 18F14K22 processor which receives and parses incoming NMEA data from the BR-355 GPS module, and an Xbee or Xbee Pro wireless module. These packets are transmitted every 15 seconds!
‘GPS to Xbee bridge’ project - [Link]
Web-based relay controller for home automation.
Home automation is getting increasingly popular these days mainly due to reduced cost and simplicity through web or smartphone connectivity. Here’s a DIY version of web-based home automation controller that allows you to have a set of six relays connected to the end of a piece of Ethernet cable that can be accessed from a web browser anywhere from your house. You can use it to control or program the operation of lights, water pumps, or any other electrical appliances at home. The project uses Arduino (Atmega328) microcontroller and the ENC28J60 ethernet controller chipset.
Web-based relay controller for home automation - [Link]
Here is a complete teardown of Samsung Galaxy Note 3. by TechInsights:
In 2011 Samsung defined a new category with its 5.3″ diagonal Galaxy Note phone. The original Note was so large it was considered by many as a phone that aspired to be a tablet, hence the term “phablet” was coined. The Galaxy Note’s monstrous screen was so out of place in the phone marketplace that the competition didn’t event mount a comparable rebuttal for nearly 12 months. Now nearly every manufacturer offers a five-inch plus device. But they all still struggle to unseat the category leader.
With the third iteration of the Galaxy Note, Samsung has refused to add kitschy features. Rather it has focused on improving the human interaction elements in using this device as an all-in-one communications device. First off the “S-Pen” continues to be linked into more of the embedded Samsung software and features, while the new Galaxy Watch (teardown coming shortly) promises further improvements to the ways the user interacts with the device’s proven functionality.
Teardown: Samsung Galaxy Note 3 still the category leader - [Link]
Miniature computers and network modules from Digi International provide besides top-level features even a long-term availability.
Company Digi International belongs to the biggest and the most experienced producers of solutions for so called M2M (machine to machine) communication like for components for a network connectivity, embedded microcomputers, communication cards, sensors, servers, routers, modems and many other.
In our portfolio can be found all the most important to start work – development kits:
● CC-W9P-9215-LX and CC-W9P-9215-NET so called Jump Start kit with a module Digi 9P 9215 family with a 32-bit processor NS9215 and a secure technology 802.11 a/b/g. These 150MHz ARM9 modules with an integrated 10/100 Mbit ethernet interface provide a universal network connectivity and a long-term product availability. On stock we keep a version with a Microsoft.NET Micro Framework support and with a Linux OS support.
● CC-WMX51-CE6 SOM microcomputer (System On Module), 10/100 Mbit ethernet, pre-certified WiFi interface 802.11a/b/g/n, hardware-accelerated multimedia, Windows embedded CE 6.0 and Linux support.
● DC-ME-9210-LX ultra compact ARM9 embedded module for network connectivity in a compact RJ45 form factor. Through a programmable FIM module (Flexible Interface Module) it´s possible to choose various interfaces like 1-wire, UART, USB-low speed, SD/SDIO, CAN, etc.
After detailed studying of documentation of these modules you´ll find, that these are the top-level modules with many optional possibilities (ZigBee, GSM, satellite), with a low power consumption and developed for a very low own radiation (EMI).
Detailed overview of these and other products can be found on the Digi International website.
Digi International – the most complex embedded modules on the market - [Link]
A look at some equipment and wafers used in the manufacture of silicon chip wafers. 200mm and 300mm wafers, die, dice sawing, lead-frame manufacture, automated testing machine (ATE) probing, clean room bunnie suits, photo plots, BGA chip thermal test sockets, and the worlds smallest active FET probes at 100 nanometers for direct wafer probing!
EEVblog #532 – Silicon Chip Wafer Fab Mailbag - [Link]
Bertho shared his NoLoop galvanic isolator:
I had a problem some time ago with a nasty ground-loop and that cost me the USB port on my old laptop. It took me a while to realize what had happened and it was a generic problem we all run into more often than we think. Time to solve this particular problem once and for all and make generic isolation for Serial and SPI ports.
NoLoop galvanic isolator - [Link]
If you need a reliable and fast storage for your data, then you shouldn´t overlook the Apacer CF6 series.
Among memory devices, CF (CompactFlash) cards are very popular for embedded devices in such fields as medical, military, gaming, automotive and POS applications to date due to their cost effectiveness, reliability and stability. Apacer’s latest generation of CF Memory cards – Industrial CF6 cards, significantly boosts the transmission efficiency up to 115/80 MB/ second, realizing the speed of SATA interface when compared with its predecessors. The new series also considerably expands its capacity up to 128GB, making it the best choice for industrial computer and automatic storage.
Apacer’s CF6 serie memory card is available in capacities of 16GB to 64GB in the reliable and highly competitive SLC chip and in capacities from 8GB to 128GB with low-cost MLC chip. Both the two series of products can run stably under industrial-grade wide-temp (-40°C – 85°C) environments, enabling the system to access data reliably even at scorching or extremely low temperatures, which considerably guarantees the service life of products. In addition, in order to enhance the accuracy of data, Apacer’s Industrial CF6 cards also support the 72-bit ECC function, wear-leveling function and S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology), thereby substantially enhancing product reliability.
In respect of ensuring data security, Apacer’s Industrial CF6-Premium Series come with an optional Write Protect function (Premium series). These CF memory cards are designed with a Lock Switch in a lower position so that customers can lock the CF memory cards prior to delivery of the system. Users can only read rather than write the data, thus helping prevent accidental deletion of data caused by careless operation and protect confidential data against vicious tampering. Apacer offers other series of Industrial Compact Flash Cards CF3 and CF5 series) as well tailored for a variety of customer applications and demands.
In case of interest in any Apacer Apacer products, please contact us at email@example.com.
Sixth generation of Apacer CF cards reaches almost speed of SATA – [Link]
The highest communication speed UMTS/HSPA+ and an easy communication via USB make the new module ideal for M2M applications.
Fast data transmission is becoming an inseparable part of devices for automotive industry, measuring, tracking, security systems, wireless terminals (POS), mobile computers etc.
When we´re choosing a module for above mentioned segments, it´s surely worth if the module also offers somewhat so to say “extra”. In case of the UC20 module it´s true, because there´s probably no parameter, which would the UC20 not meet and when you look closer at the datasheet, you´ll also find another functions like for example 2x 15 bit AD converter and other. A big advantage of the UC20 is, that it supports a fast transmission even outside of the 3G networks thanks to a dual mode (+ Multi-band) for WCDMA but even GSM with a support of GPRS/EDGE Multi-slot Class 12. A considerable benefit are also the Windows USB drivers (Linux and Android drivers are in development).
UC20 can air itself even with a high sensitivity and a high integrity of transferred data even in adverse conditions. For a development support, there are also available reference examples – UC20-reference design as well as UC20-Compatibility design regarding HW compatibility of UC20 with the M10 module.
All package (12x pdf) of software user guides can be downloaded on this link (11MB). Detailed information will provide you the documents UC20-Specification, UC20-Presentation and UC20 Hardware design.
For many applications can be beneficial the UC20 module on a PCB in a form of the Mini PCIe card. Also available is the UC20_EVB development board.
In case of interest in any modules from company Quectel, please contact us at firstname.lastname@example.org.
Quectel 3G modules of UC20 series will ensure a fast transmission even on 900 MHz – [Link]
You meet them every day without knowing that those are Friwo. However world-class producers know why they use them…
Friwo power supplies guarantee top-level specification and reliability, what can help you to gain and keep customers and a good reputation. To have a trust of customers is usually the most important factor influencing whether you will sell your product or not. And trust of customers is usually built on a reliability of a device…
Nowadays, when a device with almost the same functionality can be bought from several producers, the success or fail on the market is in the hands of seeming trifles. Naturally, there´s often a pressure on a very low price, but hand in hand with this requirement, everyone also wants a reliability.
Designers of electronic devices know, that a device with the same functionality can be designed in two basic ways:
1) in a way that it worked on the edge of its possibilities (weakly dimensioned components, slower semiconductors with higher losses, …). Such a device operates at “usual circumstances” properly, only maybe generating a little more heat (lower efficiency). The problem is usually a lower lifetime and a much higher susceptibility to overvoltages in mains line, disturbances, higher or very low temperatures etc.
2) or in a way that it worked with a reserve even in not always ideal conditions (temperature, voltage spikes, ….) even for a price of slightly higher production costs.
It´s obvious, that a device designed by a “pattern no. 2” provides far higher assumption of a reliable operation without claims, service events or a loss of a good reputation. Friwo as the biggest and the only European producer of power supplies in a given range wagered on quality and no wonder, that it´s the first choice of many renowned producers like Bosch, Metabo, Makita, Braun, Siemens medical, Porsche, Geberit, Sagem,…. If you didn´t meet a mark Friwo yet, it may be because Friwo is first of all the OEM producer and almost everyone of us daily uses some product with a Friwo power supply, without knowing it.
On stock we keep a selected range of adapters, but much more important is the fact, that we´re able to provide you any power supply from Friwo and upon order it´s also possible to produce a power supply exactly according to your demands. Friwo disposes with many production capacities, like laser trimming enabling a flexible adjustment of specification. An image about the Friwo power supplies will give you the document Friwo company profile as well as our article „Your devices will fall in love with premium power supplies Friwo”.
In case of interest, please contact us at email@example.com.
Do you divine where everywhere Friwo adapters and power supplies are used? – [Link]