pro_trinket_usb_keyboard_library's Introduction

Adafruit Pro Trinket USB Keyboard Library

ProTrinketKeyboard is Adafruit's Pro Trinket USB HID Arduino Library

ProTrinketKeyboard allows the user to implement a simple USB keyboard using an Adafruit Pro Trinket (ATmega 328P based)

Please see ProTrinketKeyboard.h for usage documentation, examples are also included

ProTrinketKeyboard uses V-USB (http://www.obdev.at/products/vusb/) to implement USB with a bitbang technique. See the folder "usbdrv" for V-USB files.

Adafruit's Pro Trinket can do almost anything that V-USB can do, including USB mouse, keyboards, joysticks, gamepads, MIDI devices, and much more (including custom devices that do not fit any existing category).

ProTrinketKeyboard is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

ProTrinketKeyboard is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with ProTrinketKeyboard. If not, see http://www.gnu.org/licenses/.

Version History

Version 1.0 Works with Pro Trinket 5V at 16 MHz Mike Barela Version 1.1 Works with Pro Trinket 5V at 16 MHz and Pro Trinket 3V at 12 MHz Mike Barela

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pro_trinket_usb_keyboard_library's Issues

Feature Request: ISR-driven Example

I'm trying to use this library but I want the keypress handler to be ISR-driven, rather than by polling.

I have adapted the example code, and added a call to attachInterrupt(..) in the setup function. This causes a compile error:

WInterrupts.c.o (symbol from plugin): In function `attachInterrupt':
(.text+0x0): multiple definition of `__vector_1'
/var/folders/st/18vtghg95f7g8wmtqcdsj3x00000gn/T/arduino_build_207015/libraries/Pro_Trinket_USB_Keyboard_Library/usbdrvasm_includer.S.o:/Users/j/Documents/Arduino/libraries/Pro_Trinket_USB_Keyboard_Library/usbdrv/usbdrvasm16.inc:35: first defined here

The code triggering this, added to my setup function looks like:
attachInterrupt(digitalPinToInterrupt(PIN_BUTTON_STRING), keyPressISR, FALLING);

My implementation attempt aside, I would quite appreciate an example of using this excellent library, with the key presses being handled by an ISR. That'd be most excellent to offer.

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adafruit / pro_trinket_usb_keyboard_library Goto Github PK

pro_trinket_usb_keyboard_library's Introduction

Adafruit Pro Trinket USB Keyboard Library

pro_trinket_usb_keyboard_library's People

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pro_trinket_usb_keyboard_library's Issues

Feature Request: ISR-driven Example

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