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https://github.com/gdsports/keymapper
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Add support for Teensy 3.6 USB host
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gdsports
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25
README.md
25
README.md
@ -1,7 +1,8 @@
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Description
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=====
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* Keymapper - An Arduino-based hardware QWERTY keyboard layout remapper.
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* Last updated: 26 November 2013
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* Last updated: 26 November 2013 by darkytoothpaste
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* Last updated: 13 August 2018 by gdsports
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What you can do with it?
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====
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@ -12,11 +13,25 @@ What you can do with it?
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How to use this?
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====
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##Hardware support
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## Hardware support
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* Arduino Leonardo with [Circuits@Home USB Host Shield 2.0](http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino-assembled)
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* Teensy 2.0 with [Circuits@Home USB Host Shield for Arduino Pro Mini](http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-for-arduino-pro-mini)
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* [Teensy 3.6](https://www.pjrc.com/store/teensy36.html) with [USB Host Cable For Teensy 3.6](https://www.pjrc.com/store/cable_usb_host_t36.html)
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* TBD [Teensy LC](https://www.pjrc.com/store/teensylc.html) with [Circuits@Home USB Host Shield for Arduino Pro Mini](http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-for-arduino-pro-mini)
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##Hardware assemble
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## Hardware assemble
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### Teensy 3.6 with USB host cable
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1. Solder the header pins to the USB 5 pin connector. Plug in the USB host cable.
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2. Install [Teensyduino](https://www.pjrc.com/teensy/td_download.html) package.
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3. Select Board type: Teensy 3.6 and USB Type: Keyboard. Upload the sketch.
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4. Plug your USB keyboard to the USB Host shield
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5. Done! Happy keyboard hacking :)
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### Leonardo or Teensy 2
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1. Stack the USB Host Shield on top of Arduino Leonardo, for Teensy, soldering work is required, you may refer to [this page](http://forum.colemak.com/viewtopic.php?id=1561)
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2. Import [USB Host Shield 2.0 library](https://github.com/felis/USB_Host_Shield_2.0) to Arduino IDE
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@ -27,7 +42,9 @@ How to use this?
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5. Done! Happy keyboard hacking :)
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##Keyboard layout switching
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### TBD Teensy LC
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## Keyboard layout switching
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* QWERTY is the default layout
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* To change layout, press:
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- CTRL+SHIFT+0: QWERTY (Default)
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104
keymapper.ino
104
keymapper.ino
@ -12,19 +12,27 @@
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Ctrl-Shift 7 => Workman
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*/
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#ifdef __MK66FX1M0__
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/* Teensy 3.6 */
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#define TEENSY_USB_HOST 1
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#endif
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#include <avr/pgmspace.h>
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#ifdef TEENSY_USB_HOST
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#include <USBHost_t36.h>
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#else
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#include <Usb.h>
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#include <hidboot.h>
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#endif
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#include <Keyboard.h>
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#include "keymapper_game.h"
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#define DEBUG
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//#define DEBUG
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#define modeLED LED_BUILTIN
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// function definitions
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bool HandleReservedKeystrokes(USBHID *hid, uint8_t *buf);
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bool HandleReservedKeystrokes(uint8_t *buf);
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inline void SendKeysToHost (uint8_t *buf);
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void play_word_game(void);
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inline void LatchKey (uint8_t keyToLatch);
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@ -75,19 +83,23 @@ uint8_t KeyBuffer[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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uint8_t specialKeyLatch = 0;
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bool specialKeyLatchReleased = false;
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class KbdRptParser : public KeyboardReportParser
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void print_hex(const uint8_t *buf, size_t len)
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{
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protected:
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virtual void Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf);
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};
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#ifdef DEBUG
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for (size_t i = 0; i < 8; i++) {
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if (i) Serial.print(' ');
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Serial.print(buf[i], HEX);
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}
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Serial.println();
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#endif
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}
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// *******************************************************************************************
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// Parse
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// *******************************************************************************************
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void KbdRptParser::Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf)
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void remapper(uint8_t *buf, uint8_t len)
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{
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uint8_t i;
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@ -95,17 +107,11 @@ void KbdRptParser::Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf)
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if (buf[2] == 1)
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return;
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// for (uint8_t i=0; i<8; i++)
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// {
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// PrintHex(buf[i]);
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// Serial.print(" ");
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// }
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// Serial.println("");
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print_hex(buf, len);
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KeyBuffer[0] = buf[0];
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if (!HandleReservedKeystrokes(hid, buf))
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if (!HandleReservedKeystrokes(buf))
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{
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specialKeyLatchReleased = true;
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@ -138,10 +144,6 @@ void KbdRptParser::Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf)
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else
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KeyBuffer[i] = buf[i];
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}
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// check locking keys
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HandleLockingKeys(hid, KeyBuffer[i]);
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}
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// reset latch if key is released
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@ -154,20 +156,12 @@ void KbdRptParser::Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf)
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// send out key press
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SendKeysToHost (KeyBuffer);
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// for (uint8_t i=0; i<8; i++)
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// {
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// PrintHex(KeyBuffer[i]);
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// Serial.print(" ");
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// }
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// Serial.println("");
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// Serial.println("");
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print_hex(KeyBuffer, 8);
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}
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};
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}
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bool HandleReservedKeystrokes(USBHID *hid, uint8_t *buf) // return true if it is a reserved keystroke
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bool HandleReservedKeystrokes(uint8_t *buf) // return true if it is a reserved keystroke
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{
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uint8_t mod = buf[0]; // read the modifier byte
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@ -258,9 +252,9 @@ inline void SendKeysToHost (uint8_t *buf)
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Keyboard.set_key5(buf[6]);
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Keyboard.set_key6(buf[7]);
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Keyboard.send_now();
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#else
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#else /* TEENSYDUINO */
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HID().SendReport(2, buf, 8);
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#endif
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#endif /* TEENSYDUINO */
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}
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@ -332,20 +326,41 @@ void play_word_game(void)
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Keyboard.println( "" );
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}
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#ifdef TEENSY_USB_HOST
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USBHost Usb;
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KeyboardController keyboard_in(Usb);
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/*
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Key remap possiblities
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Swap LeftCtrl and CapsLock. Put CapsLock in the corner where it belongs!
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Switchable QWERTY, Dvorak, and colemak keyboard layouts
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Hardware key macros
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Remappings and macros that work even in BIOS and recovery mode.
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Remappings and macros that work with KVMs and game consoles.
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*/
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void reportReader(uint8_t report[8])
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{
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remapper(report, 8);
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}
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#else /* TEENSY_USB_HOST */
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class KbdRptParser : public KeyboardReportParser
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{
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protected:
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virtual void Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf);
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};
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void KbdRptParser::Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf)
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{
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remapper(buf, len);
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// Run parent class method so keyboard LEDs are updated.
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KeyboardReportParser::Parse(hid, is_rpt_id, len, buf);
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};
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USB Usb;
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//USBHub Hub(&Usb);
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HIDBoot<USB_HID_PROTOCOL_KEYBOARD> ExtKeyboard(&Usb);
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uint32_t next_time;
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KbdRptParser Prs;
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#endif /* TEENSY_USB_HOST */
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void setup()
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{
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@ -362,6 +377,10 @@ void setup()
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Serial.println("Start");
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#endif
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#ifdef TEENSY_USB_HOST
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Usb.begin();
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keyboard_in.attachReportReader(reportReader);
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#else
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if (Usb.Init() == -1)
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#ifdef DEBUG
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@ -372,9 +391,8 @@ void setup()
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delay( 200 );
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next_time = millis() + 5000;
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ExtKeyboard.SetReportParser(0, (HIDReportParser*)&Prs);
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#endif
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}
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void loop()
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