I am going to test the connection of a serial Bluetooth module to my Mac laptop. Serial data will be provided to the module through a Teensy 2 used as a USB-to-Serial adapter. Soldering the module on a breakout board The difficulty is to correctly align all the module pins to the breakout pads. The [...]
Entries Tagged as 'atmega32u4'
Serial Bluetooth module slave test
May 8th, 2011 · 17 Comments · Uncategorized
Tags:atmega32u4·Bluetooth·LUFA·serial·Teensy2
Teensy2 USB WAV player – Part 2
June 29th, 2010 · 11 Comments · Uncategorized
[Update Jan 6th, 2011 / An error in the capacitor unit (pF instead of nF) has been fixed in the schematics] Long overdue post in my USB WAV player implementation series. Let’s go ! General architecture Here are the main software building blocks of the application: The left side is the USB Mass Storage implementation [...]
Teensy2 USB WAV player – Part 1
April 28th, 2010 · 2 Comments · Uncategorized
I had plans to implement a small WAV playback application making use of a FAT32/SD card file access. Considering my published demo with SD card Mass Storage, the plan evolved to a more ambitious endeavour: implementing the basic blocks of a WAV player. The archetype model for this project is the MP3 player device. It [...]
Tags:atmega32u4·boot·LUFA·MassStorage·Teensy2·USB
Teensy2 USB Mass Storage with an SD card
April 12th, 2010 · 25 Comments · Uncategorized
Iterating on my precedent post, the next logical step is to use the USB interface to access the SD card connected to the Teensy2/ATMEGA32U4 with a Mass Storage profile. LUFA Mass Storage demo The LUFA library offers a mass storage demo. It is based on the AT90USBKEY demonstration board that provides two onchip serial flash [...]
Tags:atmega32u4·avr·LUFA·MassStorage·Teensy2·USB
Reading an SD card part 2: Teensy 2.0
January 14th, 2010 · 6 Comments · Uncategorized
I was eager to try the ATMEGA32U4 so I ordered a Teensy2. In this post I will adapt the sd-reader library previously tested with an ATMEGA168 to the Teensy2. Converting the Teensy2 to 3.3V The Teensy2 can be powered by a 3.3V regulator. The conversion is described here. The regulator is soldered underneath the board. [...]
Tags:atmega32u4·FAT·Teensy2
