Filesystem size is limited to 2TB due to SdFat, though KurtE has added support for GUID partition tables needed to recognize larger drives, so FAT filesystem within the first 2TB of a larger drive can be used. With Teensyduino 1.57, USBFilesystem uses the SdFat library to access the actual filesystem, so only FAT filesystems are currently supported. The open() function returns a File instance, so it can be used with all libraries using File originally developed for the Arduino SD library. You can call open() to access files, remove() to delete files, and so on. It also parses the drive’s partition table and allocates each supported filesystem with a USBFilesystem instance.Įach USBFilesystem is used the same way as the SD library. USBDrive provides the driver which actually communicates with your disk over USB. To use USB disks, you create instances of the USBDrive and USBFilesystem classes. USBHost_t36 now supports use of USB disk drives connected to the USB host port on Teensy 3.6, 4.0, 4.1, thanks to a major contribution from Warren Watson, also with work from KurtE and mjs513. Here is detailed look at the new & improved features in version 1.57. Beatmaster2k – Sequencer Using Novation Launchpad.

Teensy wire library