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28 Apr 2011

Magnii Technologies will be giving away free geiger counters for ten weeks! With the growing concern of radiation fallout from nuclear facilities in Japan, a geiger counter allows you to measure radiation levels in your area.

One winner will be drawn every week for ten weeks, starting June 13th. Every winner will receive a free USB-RAD121 Geiger Counter, which measures Beta and Gamma radiation levels. We’ll even ship it for free, anywhere in the world!

The USB-RAD121 is a new product from Magnii Tech that runs completely off the USB port. The device features a classic geiger counter click and light pulse for every count registered, while radiation levels are displayed on the computer. The simple software interface displays and graphs readings over time, and even allows the readings to be streamed to a personal webpage.

Geiger Counter Giveaway – [Link]

28 Apr 2011

pyroelectro.com writes:

USB has recently become one of the most popular types of communication for devices ranging from consumer products, to industrial robotics and test equipment. The protocol relies heavily on constant contact with devices for error checking which makes it a bit cumbersome, but the end result is stability and high through-put speeds that operating systems love.   With such popularity, understanding how to communicate with a USB host (like on a laptop) becomes an essential piece of information for anyone wishing to build a USB enabled device.

Simple PIC USB Interface – [Link]

15 Apr 2011

Cypress Semiconductor’s first USB 3.0 controller type EZ-USB® FX3 is targeted at video and imaging, printing, scanning, and a variety of applications that need higher throughput than USB 2.0. The new EZ-USB FX3 (CYUSB3014) device is a flexible peripheral controller with a General Programmable Interface (GPIF II) that delivers a 5-Gbps USB 3.0 data pipeline, a fully configurable ARM9™ processor core and backwards compatibility with USB 2.0. With an internal bus architecture designed to operate at 4 times the USB 3.0 speeds, EZ-USB FX3 is ideal for moving large amounts of data extremely fast. It can, for example, deliver high-definition video streaming in imaging applications, eliminating the need for compression on the peripheral side. [via]

SuperSpeed USB 3.0 controller – [Link]

14 Apr 2011

Vane writes:

Today i created pcb for Lithium Ion / Lithium Polymer USB Battery Charger with MAX1811, and designed with eagle pcb software.

About Max1811

The MAX1811 is a single-cell lithium-ion (Li+) battery charger that can be powered directly from a USB port or from an external supply up to 6.5V. It has a 0.5% overall battery regulation voltage accuracy to allow maximum utilization of the battery capacity.

The charger uses an internal FET to deliver up to 500mA charging current to the battery. The device can be configured for either a 4.1V or 4.2V battery. The MAX1811 is available in a small 1.4W thermally enhanced 8-pin SO package.

PCB for USB Charger with MAX1811 – [Link]


13 Apr 2011

krishi shows how-to use the Arduino as an HID MIDI device. [via]

MIDI over USB using Arduino Uno – [Link]

12 Apr 2011

womai writes:

Below you see the specifications of the instruments. If you are familiar with oscilloscopes you will see that the DPScope has pretty much all the features you’d expect from a decent lower-end instrument.

If you aren’t a number freak, feel free to skip this page as fast as you can :-)

On the next page I’ll discuss a few of the key specifications.

DPScope – Build Your Own USB/PC-Based Oscilloscope – [Link]

12 Apr 2011

dangerousprototypes.com writes:

This is a USB and serial backpack for simple HD44780 character LCD screens. It has a few nice features that set it apart from the serial-only LCD backpacks at SparkFun and Adafruit:

USB and serial control of characters LCDs
Supported in common software (LCD Smartie) as ‘matrix orbital’ display
Adjust contrast and backlight from software
Couple extra pins for buttons
500mA fuse
USB upgradable

PIC LCD backpack – [Link]

8 Apr 2011

dangerousprototypes.com writes: [via]

We covered Sure’s WIFI web server module previously. This board has a MRF24WB0MB wireless module and a PIC24FJ256GB106 with USB (host and slave) capabilities. As a bonus the board also has a mini-sd connector for storing webpages. At a first glance the board looks very clean and well designed with a nice silkscreen. Cost was $59.90 plus shipping.

Sure electronics WiFi web server module – [Link]

7 Apr 2011

StartUSB for PIC is a small development board from mikroElektronika featuring PIC18F2550 preprogrammed with an USB bootloader. This tutorial describes the complete setup for this board that will let you start your journey into the world of PIC18F microcontrollers.

StartUSB for PIC board - [Link]


1 Apr 2011

radiolocman.com writes:

PIC 18F4550 and 18F2550 are powerful microcontrollers including a full-speed USB V2.0 compliant interface. With these MCU it’s very easy for the hobbyist to design USB devices with very few components. In these pages, I’m describing how to use the CDC firmware from Microchip. It permits to emulate a serial port with a PC running Windows or Linux. It’s also very easy to build HID devices.

Build a USB device with a PIC – [Link]





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