Here Collin’s Lab at Makezine explores the use of microcontrollers as USB host controllers. Very instructive and worth a look by anyone wanting to learn more about USB and its integration with microcontrollers. Via Makezine
Arthur sent in his USB infrared decoder. It uses a PIC18F2550 to process the IR signal and send it to the PC as keyboard commands. Via the contact form.
What would you do if you saw a USB connector sticking out of the wall in a public place? Makers in New York City want find out! They’re launching project “USB Dead Drop”, an anonymous, offline, peer to peer file-sharing network using USB flash drives embedded into walls, buildings and curbs accessible to passersby. Just […]
Honken has an updated open source USB firmware for PIC microcontrollers. We ported the update to the IR Toy, you can load it up and test it yourself using the bootloader. This version is much more robust, and a number of bugs were squashed. The first character sent is no longer lost, and strings of […]
A cool USB business card. This one is a little different than some of the mass storage device business cards we’ve covered before. It enumerates as a keyboard and dumps contact info into notepad. Via Hack a Day.
jrt reverse engineered the IM-me USB dongle using the Open Logic Sniffer. Video after the break. You can order the Logic Sniffer at Seeed Studio for $45, including worldwide shipping. Don’t forget that Seeed now has probe cables for $6 each. Via the forum.
The MHVBoard is an Arduino clone based on the Metaboard. It has a USB connection, but it doesn’t use an FT232R chip or a USB AVR. It uses the V-USB library to bitbang low-speed USB directly from the microcontroller. Via the contact form.
Markus accessed a USB memory stick from a 32bit PIC using FatFs with the Microchip USB host stack. Source code is available at the link. Via the forum.
Honken dropped an open source USB firmware for PIC microcontrollers in the forum. This is a preliminary echo test that proves the concept, a layered stack will follow. We ported the firmware to the IR Toy, you can load it up and test it yourself using the bootloader. That refreshing feeling is USB flowing from […]
Openschemes bought an inexpensive Top2005 multiple chip programmer, but they couldn’t get it to work well. In a two-part series they trace the circuit and create alternative FPGA bitstreams that turn it into a full-featured desktop test bench. Great writeup of a reverse engineering adventure. Via the forum, thanks for the tip IPenguin!