USB Connectivity - TeensyUser/doc GitHub Wiki

List of libraries for using the USB ports in host and device mode

MTP

MTP Responder for Teensy 4.0 and T3.6. While the Teensy 3.5 uses the same PCB as the Teensy 3.6, it does not provide for USB host support like the Teensy 4.0 and 3.6 do.

Hardware support

The inner 5 pins of the Teensy 4.1 and 3.6 that provides the HOST USB support are laid out to be able to use common USB adapter cables made to go from a PC motherboard to USB. The PJRC company sells one of these cables in their store.

The Teensy 3.6 has solder pads underneath the Teensy that allows you to pass 5 volts from the Teensy to the USB devices, or whether the USB device must provide its own power (for example being connected to a USB powered hub).

In order to use the USB host support for the Teensy 4.0, you have to bring out the USB pads from underneath the Teensy. Some of the Teensy 4.0 breakout boards can help bring out these pins.

Details
  • Copying files from Teensy to PC and from PC to Teensy is working
  • Disk I/O is buffered to get some speed-up overcoming uSD latency issues
  • Both Serialemu and true Serial may be used- True Serial port is, however, showing up as Everything in Com port. This is a workaround to get Serial working.

Links: GitHub repository: https://github.com/WMXZ-EU/MTP_t4

Teensy is a PJRC trademark. Notes here are for reference and will typically refer to the ARM variants unless noted.

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