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13 Aug 2014

microchip2

by elektor.com:

Microchip Technology Inc has introduced a PIC32 Bluetooth starter kit. The kit includes a board with a PIC32 microcontroller, HCI-based Bluetooth radio, Cree high-output multi-color LED, 3 standard single-color LEDs, an analog 3-axis accelerometer, analog temperature sensor and 5 push buttons for user-defined inputs. In addition the PICkit™ On Board (PKOB) eliminates the need for an external debugger/programmer and supports USB connectivity and GPIOs for rapid development of Bluetooth Serial Port Profile (SPP), USB and general-purpose applications. To support Bluetooth audio the starter kit also includes an interface for a plug-in audio CODEC daughter card set for release at a later stage.

Microchip Bluetooth Starter Kit - [Link]

12 Aug 2014

thinkpower

by elektor.com:

It’s holiday season and the chances are some of your gadgets will be also be going along for the ride. The ThinkPower mobile charger by Zettaly has been designed to provide essential recharge capability for USB-charged devices when you find yourself any distance from a mains wall outlet. The ThinkPower itself can be fully charged in just 90minutes and once charged its 10,000mAh high-capacity battery pack can recharge any USB-powered gadget. It has been tested with iPhone, iPad, Samsung Galaxy, Nexus, HTC, Moto, LG, GoPro and many other brands of smartphones, tablets, and cameras (for DIY fans its also tested been tested with the Raspberry Pi :). A fully charged ThinkPower has enough capacity to recharge an iPhone 5 over four times.

Speedy Recharger - [Link]

12 Aug 2014

7seg-front.preview1

Spacewrench over at Dorkbotpdx writes:

I had some spare 4-digit 7-segment LED displays and some AT90USB82s, and I’d always intended to do something with them. This was probably the easiest thing! It’s just the AT90 driving the display, with a(t least) 4 wires controlling it: Vcc, GND, MOSI and SCK. (I haven’t written the code yet, but my plan is to make the display accepts characters via SPI and then spends the rest of the time displaying them).
The board has footprints for a 16MHz crystal and USB connector, so you could make it a USB-enabled 7-segment display as well. I stuffed those parts on my test board, but I’m not sure whether the USB actually works. You can power the display from USB, at least, although the video shows it being powered over SPI (which is the same connection I use to flash code).

[via]

Standalone SPI 7-segment display - [Link]

7 Aug 2014

YunShield_2-500x358

by Edwin Chen @ open-electronics.org:

The model of this shield named Yun Shield, the feature of this shield is as its name. User can add this shield into Arduino (Leonardo, UNO, MEGA2560 etc) and “turn” the Arduino into device which has similiar features as Arduino Yun: support remote upgrade and use the Bridge library.

With this shield, user can easy to set up communcation between Arduino and Internet (via ethernet , wifi or 3g etc) and add support for USB flash, video. The detail user guide/ manual can be found in the dragino website and most Arduino Yun Sketch / examples can reuse with this Shield. This shield is under production and will be ready within one months time.

Add Linux, WiFi, Ethernet and USB to Arduino - [Link]


29 Jul 2014

P1010049-600x450

µVolume USB volume control project by Rupert Hirst of RunAwayBrainz:

µVolume T-32 USB Volume Control update, featuring infra red media control

Features:
-Arduino Compatible (Atmel Atmega32u4)
-Manual volume adjustment using the rotary encoder
-(IR) Infra red remote control of volume and multimedia controls
-Apple remote or user defined
-Visual and audible Feedback
-RGB Lighting Customization’s

[via]

uVolume T-32 USB volume & media control - [Link]

17 Jul 2014

raspiado

by elektor.com

When you start hooking peripherals such as keyboard, WiFi dongle and mouse to a Raspberry Pi it’s not long before you run out of ports and need a USB hub, preferably powered so that it can supply the RPi as well. At this point cabling starts to take over your workspace.

The Raspiado board, launched on Kickstarter should help cut down on the tangle; it has the same dimensions as the RPi board and mounts on its underside via two (stackable) standoff pillars to leave the top GPIO and camera connectors open to whatever you’re building so that it won’t impede the RPi’s connectivity options.

Raspberry Pi without the Spaghetti - [Link]

10 Jul 2014

obr1554_1

There´s only one original, even though with a fake, it´s possible to “gain” also something unwanted – hours of debugging and costs for exchange.

Copying of products and components is perhaps as old as an industrial production is. Logically – it´s easier to jump up to a “running train” (to copy a renowned product) than to develop something new. Everyone, who develops an electronic device probably can confirm, that it´s demanding and expensive. Similarly it´s also at development of chips. Well known and widely used chips for a USB interface . from company FTDI belong to the most popular on the market. No wonder, that it´s fakes appeared on the market, with the same appearance as an original (on the first sight). Despite the fact, that the price of the FT232RL chip is relatively very affordable, a vision of a cheaper purchase was certainly attractive though expensively paid at the end.

On the enclosed photo, there´s an original on the left side and the fake on the right side. It´s visible, that the original has a laser engraved marking, while the fake has it only printed. But that wouldn´t be a problem… Fake worked so-so well until the time, when FTDI upgraded drivers with a utility able to detect fake products. In case of fake, the USB communication fails (sends only zeroes).

On the enclosed photo, there´s an original on the left side and the fake on the right side. It´s visible, that the original has a laser engraved marking, while the fake has it only printed. But that wouldn´t be a problem… Fake worked so-so well until the time, when FTDI upgraded drivers with a utility able to detect fake products. In case of fake, the USB communication fails (sends only zeroes).

The result is clear in this case – exchange of non-working fakes from target devices (from customers! is significantly more expensive that a usage of an original would be. And how to be certain about the authenticity of the component? – by a purchase from an authorized distributor. SOS electronic is already for many years an authorized distributor of FTDI with a close cooperation and an above-standard technical support.

Be aware of the FTDI chips fakes - [Link]

9 Jul 2014

oled_case

Jared Sanson @ jared.geek.nz writes:

So it’s been a while since I last posted about my OLED watch, and I’ve done a lot of work on it! (And also broke it multiple times)

It’s taken me a lot of work to get this far, and I developed EVERYTHING from the ground up. The electronics design, the PCB layout, the RTOS and firmware drivers, the graphics engine, the user-mode app code, and even USB communications apps. I’ve used C, C#, and Python extensively in this project, and Altium Designer for the schematic and PCB.

Overall it has been an awesome learning experience, and if I was to make another one I would do a lot of things differently!

OLED Watch Is Alive! - [Link]

5 Jul 2014

F5KSWEYHX42R7K7.MEDIUM

Solderdoodle is a portable, cordless, USB rechargeable soldering iron. Solarcycle @ instructables.com writes:

After learning how to use 3D printers, one of my friends asked if there was such a thing as a USB soldering iron and I said that I had instructions to build one, but the battery was external. I then realized that I could create my own case design on a 3D printer and put the battery, charge controller, and other parts inside as one single unit! It worked! .stp files for the case are provided below.

Solderdoodle: Open Source USB Rechargeable Soldering Iron - [Link]

22 Jun 2014

RPi_USBTester_3

Posts Raspberry Pi power usage to Xively, MobileWill’s latest project:

Realtime graph of Raspberry Pi power usage on the web. So using Xiviely and my USB Tester I am logging voltage, current mWh and mAh to the web.

[via]

Live Raspberry Pi Power Usage - [Link]



 
 
 

 

 

 

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