The USB Universal LCD backpack controls LCDs with up to 16 interface pins at 3.3volts or 5.0volts. This includes common HD44780 character LCDs and larger graphical LCDs. Small backpack mounts behind most LCDs USB control for common 1×8, 1×16, 2×8, 2×16 … up to 4×40 character displays and some graphic displays 3v3 and 5v LCDs […]
Category Archives: USB
USB Hacking with the Arduino
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
USB infrared decoder
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.
USB port in wall gives new meaning to file sharing
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 […]
Open source PIC USB demo for the IR Toy
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 […]
Tiny USB business card
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.
Logic Sniffer: IM-me USB dongle hacking
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.
MHVBoard Arduino clone with USB
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.
FatFs example project for USB flash drive
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.
Open Source PIC USB demoed
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 […]
EEPROM programmer to a low-cost desktop test bench
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!