Arduino Pro (Leonardo Micro)

[RxBrad]

I'm seeing almost 0.5 seconds of input lag with this PCB that I don't see when using a regular keyboard hooked up to the same USB hub on my Pi0. It's basically unplayable. Anyone else having this problem??

EDIT: So, apparently I programmed it wrong. The red light on the Leonardo Micro was on the entire time it was plugged in. It shouldn't do that.

I flashed it with the alternate programming mode in the Arduino software (the one not using programmer), and it worked. The red light only turns on when you push a button on the GBZ.

[Raizan]

I'm seeing almost 0.5 seconds of input lag with this PCB that I don't see when using a regular keyboard hooked up to the same USB hub on my Pi0. It's basically unplayable. Anyone else having this problem??

No... i have been playing fine... :/

[Lpoolm]

Hey, can someone tell me where shoud i connect the usb pads from the pi zero (from the usb hub) to the arduino pro board?
On the teensy lc you connect it to VCC D- D+ GND but the pro micro uses other...
Thank you

i also am struggling with where to connect my usb, does anyone have an answer to this yet?
thanks

[Raizan]

Hey, can someone tell me where shoud i connect the usb pads from the pi zero (from the usb hub) to the arduino pro board?
On the teensy lc you connect it to VCC D- D+ GND but the pro micro uses other...
Thank you

i also am struggling with where to connect my usb, does anyone have an answer to this yet?
thanks

I ended up stripping a micro usb cable and connect the nicro usb port to the arduino pro and the cables to the usb hub...

[Lpoolm]

Hey, can someone tell me where shoud i connect the usb pads from the pi zero (from the usb hub) to the arduino pro board?
On the teensy lc you connect it to VCC D- D+ GND but the pro micro uses other...
Thank you

i also am struggling with where to connect my usb, does anyone have an answer to this yet?
thanks

I ended up stripping a micro usb cable and connect the nicro usb port to the arduino pro and the cables to the usb hub...

Thanks, I saw your post, hoping there was a better way but maybe my only option!

[Perifferal]

I am wanting to start with making a GBZ, including L1, L2, R1, R2 buttons and 1 analog stick. Seeing the amount of inputs the micro can handle, this should be possible: 14 buttons and 2 analog (X and Y-axis). I am just wondering whether the analog stick will actually work or not? Is it seen as a keypress, or is there a way to set it up as an actual analog stick? Any ideas?

[myPiZero]

You can make a joystick with the analog inputs.
Look at this guide
Add USB Game Controller to Arduino Leonardo/Micro

Does anyone experience missed key presses? Not every press is recognized. I don't know if it's the hub's fault.

Edit:
I made a new sketch which doesn't use the slow digitalRead commands. I also reduced power consumption using the power reduction registers.

I recommend reducing number of pins to the used ones only. If you wire 12 only, change BUTTONS to 12.

Code: Select all

#include <Keyboard.h>

#define BUTTONS 16

int keycode_arr[] =
{
  129,  // PIN2   LEFT SHIFT
  32,   // PIN3   Space bar (Button 3)
  130,  // PIN4   LEFT-ALT (Button 2)
  128,  // PIN5   LEFT-CTRL (Button 1)
  215,  // PIN6   RIGHT
  217,  // PIN7   DOWN
  216,  // PIN8   LEFT
  218,  // PIN9   UP
  122,  // PIN10  Z
  176,  // PIN16  ENTER
  108,  // PIN14  (left shoulder - l)
  114,  // PIN15  (right shoulder - r)
  112,  // A0     PAUSE
  177,  // A1     ESC
  205,  // A2     F12
  17    // A3     CTRL
};

int key_state[BUTTONS];

void setup()
{
  PRR1 = PRR1 |
         (
           (1 << PRTIM2) |
           (1 << PRTIM3) |
           (1 << PRUSART1)
         );
  PRR0 = PRR0 |
         (
           (1 << PRTWI) |
           (1 << PRSPI) |
           (1 << PRTIM1) |
           (1 << PRADC)
         );

  DDRB = DDRB & ~
         (
           (1 << DDB1) |
           (1 << DDB2) |
           (1 << DDB3) |
           (1 << DDB4) |
           (1 << DDB5) |
           (1 << DDB6)
         );

  PORTB = PORTB |
          (
            (1 << PB1) |
            (1 << PB2) |
            (1 << PB3) |
            (1 << PB4) |
            (1 << PB5) |
            (1 << PB6)
          );

  DDRC = DDRC & ~ (1 << DDC6);
  PORTC = PORTC | (1 << PC6);

  DDRD = DDRD & ~
         (
           (1 << DDD0) |
           (1 << DDD1) |
           (1 << DDD4) |
           (1 << DDD7)
         );
  PORTD = PORTD |
          (
            (1 << PD0) |
            (1 << PD1) |
            (1 << PD4) |
            (1 << PD7)
          );

  DDRE = DDRE & ~ (1 << DDE6);
  PORTE = PORTE | (1 << PE6);

  DDRF = DDRF & ~
         (
           (1 << DDF4) |
           (1 << DDF5) |
           (1 << DDF6) |
           (1 << DDF7)
         );
  PORTF = PORTF |
          (
            (1 << PF4) |
            (1 << PF5) |
            (1 << PF6) |
            (1 << PF7)
          );

  Keyboard.begin();
}

void loop()
{
  int port_b;
  int port_c;
  int port_d;
  int port_e;
  int port_f;

  port_b = PINB;
  port_c = PINC;
  port_d = PIND;
  port_e = PINE;
  port_f = PINF;

  key_state[0] = ((port_d & (1 << PD1)) == 0); // PIN2
  key_state[1] = ((port_d & (1 << PD0)) == 0); // PIN3
  key_state[2] = ((port_d & (1 << PD4)) == 0); // PIN4
  key_state[3] = ((port_c & (1 << PC6)) == 0); // PIN5
  key_state[4] = ((port_d & (1 << PD7)) == 0); // PIN6
  key_state[5] = ((port_e & (1 << PE6)) == 0); // PIN7
  key_state[6] = ((port_b & (1 << PB4)) == 0); // PIN8
  key_state[7] = ((port_b & (1 << PB5)) == 0); // PIN9
  key_state[8] = ((port_b & (1 << PB6)) == 0); // PIN10
  key_state[9] = ((port_b & (1 << PB2)) == 0); // PIN16
  key_state[10] = ((port_b & (1 << PB3)) == 0); // PIN14
  key_state[11] = ((port_b & (1 << PB1)) == 0); // PIN15
  key_state[12] = ((port_f & (1 << PF7)) == 0); // A0
  key_state[13] = ((port_f & (1 << PF6)) == 0); // A1
  key_state[14] = ((port_f & (1 << PF5)) == 0); // A2
  key_state[15] = ((port_f & (1 << PF4)) == 0); // A3


  for (int i = 0; i < BUTTONS; i++)
  {
    if (key_state[i] == 1)
    {
      Keyboard.press(keycode_arr[i]);
    }
    else
    {
      Keyboard.release(keycode_arr[i]);
    }
  }
}

[Fox]

Do I need to download a "Keyboard.h" library somewhere?

*EDIT: I just found out that the library is built-in the Arduino IDE.

[winnetouch]

You can make a joystick with the analog inputs.
Look at this guide
Add USB Game Controller to Arduino Leonardo/Micro

Does anyone experience missed key presses? Not every press is recognized. I don't know if it's the hub's fault.

Edit:
I made a new sketch which doesn't use the slow digitalRead commands. I also reduced power consumption using the power reduction registers.

I recommend reducing number of pins to the used ones only. If you wire 12 only, change BUTTONS to 12.

Code: Select all

#include <Keyboard.h>

#define BUTTONS 16

int keycode_arr[] =
{
  129,  // PIN2   LEFT SHIFT
  32,   // PIN3   Space bar (Button 3)
  130,  // PIN4   LEFT-ALT (Button 2)
  128,  // PIN5   LEFT-CTRL (Button 1)
  215,  // PIN6   RIGHT
  217,  // PIN7   DOWN
  216,  // PIN8   LEFT
  218,  // PIN9   UP
  122,  // PIN10  Z
  176,  // PIN16  ENTER
  108,  // PIN14  (left shoulder - l)
  114,  // PIN15  (right shoulder - r)
  112,  // A0     PAUSE
  177,  // A1     ESC
  205,  // A2     F12
  17    // A3     CTRL
};

int key_state[BUTTONS];

void setup()
{
  PRR1 = PRR1 |
         (
           (1 << PRTIM2) |
           (1 << PRTIM3) |
           (1 << PRUSART1)
         );
  PRR0 = PRR0 |
         (
           (1 << PRTWI) |
           (1 << PRSPI) |
           (1 << PRTIM1) |
           (1 << PRADC)
         );

  DDRB = DDRB & ~
         (
           (1 << DDB1) |
           (1 << DDB2) |
           (1 << DDB3) |
           (1 << DDB4) |
           (1 << DDB5) |
           (1 << DDB6)
         );

  PORTB = PORTB |
          (
            (1 << PB1) |
            (1 << PB2) |
            (1 << PB3) |
            (1 << PB4) |
            (1 << PB5) |
            (1 << PB6)
          );

  DDRC = DDRC & ~ (1 << DDC6);
  PORTC = PORTC | (1 << PC6);

  DDRD = DDRD & ~
         (
           (1 << DDD0) |
           (1 << DDD1) |
           (1 << DDD4) |
           (1 << DDD7)
         );
  PORTD = PORTD |
          (
            (1 << PD0) |
            (1 << PD1) |
            (1 << PD4) |
            (1 << PD7)
          );

  DDRE = DDRE & ~ (1 << DDE6);
  PORTE = PORTE | (1 << PE6);

  DDRF = DDRF & ~
         (
           (1 << DDF4) |
           (1 << DDF5) |
           (1 << DDF6) |
           (1 << DDF7)
         );
  PORTF = PORTF |
          (
            (1 << PF4) |
            (1 << PF5) |
            (1 << PF6) |
            (1 << PF7)
          );

  Keyboard.begin();
}

void loop()
{
  int port_b;
  int port_c;
  int port_d;
  int port_e;
  int port_f;

  port_b = PINB;
  port_c = PINC;
  port_d = PIND;
  port_e = PINE;
  port_f = PINF;

  key_state[0] = ((port_d & (1 << PD1)) == 0); // PIN2
  key_state[1] = ((port_d & (1 << PD0)) == 0); // PIN3
  key_state[2] = ((port_d & (1 << PD4)) == 0); // PIN4
  key_state[3] = ((port_c & (1 << PC6)) == 0); // PIN5
  key_state[4] = ((port_d & (1 << PD7)) == 0); // PIN6
  key_state[5] = ((port_e & (1 << PE6)) == 0); // PIN7
  key_state[6] = ((port_b & (1 << PB4)) == 0); // PIN8
  key_state[7] = ((port_b & (1 << PB5)) == 0); // PIN9
  key_state[8] = ((port_b & (1 << PB6)) == 0); // PIN10
  key_state[9] = ((port_b & (1 << PB2)) == 0); // PIN16
  key_state[10] = ((port_b & (1 << PB3)) == 0); // PIN14
  key_state[11] = ((port_b & (1 << PB1)) == 0); // PIN15
  key_state[12] = ((port_f & (1 << PF7)) == 0); // A0
  key_state[13] = ((port_f & (1 << PF6)) == 0); // A1
  key_state[14] = ((port_f & (1 << PF5)) == 0); // A2
  key_state[15] = ((port_f & (1 << PF4)) == 0); // A3


  for (int i = 0; i < BUTTONS; i++)
  {
    if (key_state[i] == 1)
    {
      Keyboard.press(keycode_arr[i]);
    }
    else
    {
      Keyboard.release(keycode_arr[i]);
    }
  }
}

This is going to be a really noob question...

How do I change a key function. Like if I want to change pin 2 to be a W for instance. How would I go about doing that?

[TimBer]

Replace it with the according value below.

Code: Select all

These are the ones (note they are hex, not decimal):
#define KEY_LEFT_CTRL   0x80
#define KEY_LEFT_SHIFT    0x81   //(this is decimal 129, but you could also use 0x81)
#define KEY_LEFT_ALT    0x82
#define KEY_LEFT_GUI    0x83
#define KEY_RIGHT_CTRL    0x84
#define KEY_RIGHT_SHIFT   0x85
#define KEY_RIGHT_ALT   0x86
#define KEY_RIGHT_GUI   0x87

#define KEY_UP_ARROW    0xDA
#define KEY_DOWN_ARROW    0xD9
#define KEY_LEFT_ARROW    0xD8
#define KEY_RIGHT_ARROW   0xD7
#define KEY_BACKSPACE   0xB2
#define KEY_TAB       0xB3
#define KEY_RETURN      0xB0
#define KEY_ESC       0xB1
#define KEY_INSERT      0xD1
#define KEY_DELETE      0xD4
#define KEY_PAGE_UP     0xD3
#define KEY_PAGE_DOWN   0xD6
#define KEY_HOME      0xD2
#define KEY_END       0xD5
#define KEY_CAPS_LOCK   0xC1
#define KEY_F1        0xC2
#define KEY_F2        0xC3
#define KEY_F3        0xC4
#define KEY_F4        0xC5
#define KEY_F5        0xC6
#define KEY_F6        0xC7
#define KEY_F7        0xC8
#define KEY_F8        0xC9
#define KEY_F9        0xCA
#define KEY_F10       0xCB
#define KEY_F11       0xCC
#define KEY_F12       0xCD

//and the keys (note that these are decimal.....sorry)
#define KEY_A       4
#define KEY_B       5
#define KEY_C       6
#define KEY_D       7
#define KEY_E       8
#define KEY_F       9
#define KEY_G       10
#define KEY_H       11
#define KEY_I       12
#define KEY_J       13
#define KEY_K       14
#define KEY_L       15
#define KEY_M       16
#define KEY_N       17
#define KEY_O       18
#define KEY_P       19
#define KEY_Q       20
#define KEY_R       21
#define KEY_S       22
#define KEY_T       23
#define KEY_U       24
#define KEY_V       25
#define KEY_W       26
#define KEY_X       27
#define KEY_Y       28
#define KEY_Z       29
#define KEY_1       30
#define KEY_2       31
#define KEY_3       32
#define KEY_4       33
#define KEY_5       34
#define KEY_6       35
#define KEY_7       36
#define KEY_8       37
#define KEY_9       38
#define KEY_0       39