The micro-sized, Arduino enabled, usb development board – cheap enough to leave in any project! Erik Kettenburg writes:
The Story: We set out to build a little brother to the wonderful Arduino line of development boards – we were tired of leaving our valuable Arduino’s behind in projects, or worse, ripping apart old projects to build new ones! We also felt the Arduino was too big and powerful for many projects where we only needed a few pins, or an SPI or I2C bus. And so the Digispark was born! To us, the best things about the Arduino is the community, the easy of use, and the IDE – by making the Digispark an Arduino compatible development board all of those remain common. Plug it in, power your project with USB or external sources, program it with the Arduino IDE, and easily use existing Arduino code! But with its small size and low cost you can feel free to leave it in your project, give one to a friend, and use them everywhere!
Digispark – The tiny, Arduino enabled, usb dev board! - [Link]
FT245RL IC testing software. You can set the output and get input status from your PC’s screen. It is thus possible to enable or disable the 8 channels, for a 8-channel input.
FT245RL Test Software - [Link]
This is just a friendly FYI to all hackers. Once you get a little more adventurous you can get real confused about what usb devices are plugged in etc (which com ports,…)
my best new friend is usbdeview from nirsoft http://www.nirsoft.net/utils/usb_devices_view.html
It shows you everything about the plugged in usb devices, updates on the fly, v good
USBDeview: Debugging USB devices - [Link]
The AVR Stick is a simple data logging device that instantiates itself as an HID keyboard and reports the voltages, along with a ‘timestamp,’ from two pins on an ATtiny85. The device uses open source firmware availabe from Objective Development (http://www.obdev.at/vusb/) called V-USB to implement the USB 1.1 standard. The code that runs the application was based on the EasyLogger example application from Objective development.
AVR Stick – A simple USB data logging device - [Link]
Jürgen Beisert writes:
I like the handy DCF77 signal. In this project no clock should use it, instead the computers in my home network should be served by a precise time reference. Due to the fact most other interfaces are no longer available on modern computers, it uses the USB to forward the prepared DCF77 signal to the host.
DCF77 to USB converter - [Link]
raph @ raphnet.net writes:
USBTenki is an electronic project to interface sensors to an USB port for collecting weather related data such as temperature. The firmware supports many different sensors and interfaces. It is up to you to decide what your USBTenki will support.
USBTenki: USB Temperature sensors and more - [Link]
USBTemp provides a thermometer. It is based on the DS18S20 digital thermometers. In addition, the thermometer connects to an USB port – you can read the temperature using a commandline tool. In combination with RRDTool you can easily create temperature graphs
USBTemp – USB temperature measurement - [Link]
What i am making here is a USB lock with smartcard key. The idea is that a phonecard reader made with a PIC micro will be able to store a number of different phonecards into memory. Whenever one of these cards is inserted into the slot, it will activate a 4-ports USB On/Off switch. If the card is removed, the USB ports will be de-activated.
Lock USB ports via a PIC-based smart card reader - [Link]
Ettus, manufacturers of the USRP line of SDRs, has announced the availability of a customized bootable USB drive for USRP/GnuRadio development. The LiveUSB SDR Environment is a 16 GB USB 3.0 drive with Ubuntu 11.10 (64-bit), USRP Hardware Driver (UHD), GNU Radio, OpenBTS and associated documentation preinstalled.
Ettus notes that this drive is compatible with USB 2.0 ports, but the system will take longer to boot, load programs, and respond to user interaction.
The US list price is $79.00. Good news: Ettus is making a .tar.gz file with the file system available for free download here. If your hardware is 64-bit/USB 3.0, give it a try!
Ettus LiveUSB SDR environment - [Link]