Joystick

Project #26 – Radio Frequency – Joystick – Mk11

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#DonLucElectronics #DonLuc #RadioFrequency #Bluetooth #Joystick #SparkFunJoystickShield #SparkFunThingPlusESP32WROOM #Arduino #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant

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Joystick

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Joystick

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Joystick

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Thumb Joystick

This is a joystick very similar to the “Analog” joysticks on PS2 controllers. Directional movements are simply two potentiometers, one for each axis. Pots are ~10k each. This joystick also has a select button that is actuated when the joystick is pressed down. This is the breakout board for the thumb joystick SparkFun Thumb Joystick Breakout.

DL2303Mk02

1 x SparkFun Thing Plus – ESP32 WROOM
1 x SparkFun Joystick Shield Kit
1 x Thumb Joystick
1 x SparkFun Thumb Joystick Breakout
1 x Lithium Ion Battery – 1 Ah
1 x SparkFun Cerberus USB Cable

SparkFun Thing Plus – ESP32 WROOM

DLE_UP – Digital 16
DLE_DOWN – Digital 19
DLE_LEFT – Digital 18
DLE_RIGHT – Digital 17
DLE_FIRE – Digital 12
DLE_SPACE – Digital 5
DLE_SPACEA – Digital 21
LED – LED_BUILTIN
VIN – +3.3V
GND – GND

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DL2303Mk02p.ino

/* ***** Don Luc Electronics © *****
Software Version Information
Project #26 - Radio Frequency - Joystick - Mk11
26-11
DL2303Mk02p.ino
1 x SparkFun Thing Plus - ESP32 WROOM
1 x SparkFun Joystick Shield Kit
1 x Thumb Joystick
1 x SparkFun Thumb Joystick Breakout
1 x Lithium Ion Battery - 1 Ah
1 x SparkFun Cerberus USB Cable
*/

// Include the Library Code
// ESP32 BLE Keyboard - NIMBLE
#define USE_NIMBLE
#include <BleKeyboard.h>

// ESP32 BLE Keyboard
BleKeyboard bleKeyboard;

// Game Controller Buttons
#define DLE_UP 16
#define DLE_DOWN 19
#define DLE_LEFT 18
#define DLE_RIGHT 17
#define DLE_FIRE 12
#define DLE_SPACE 5
#define DLE_SPACEA 21

// Button
bool keyStates[7] = {false, false, false, false, false, false, false};
int keyPins[7] = {DLE_UP, DLE_DOWN, DLE_LEFT, DLE_RIGHT, DLE_SPACEA, DLE_SPACE, DLE_FIRE};
uint8_t keyCodes[7] = {KEY_UP_ARROW, KEY_DOWN_ARROW, KEY_LEFT_ARROW, KEY_RIGHT_ARROW, ' ', ' ', KEY_LEFT_CTRL};

// Connect Notification Sent
bool connectNotificationSent = false;

// Software Version Information
String sver = "26-11";

void loop() {
  
  // Bluetooth Serial (ESP32SPP)
  isBluetooth();

}

getBluetooth.ino

// Bluetooth
// isBluetooth
void isBluetooth() {

  // Counter
  int counter;
  
  // ESP32 BLE Keyboard
  if(bleKeyboard.isConnected()) {

    // Connect Notification Sent
    if (!connectNotificationSent) {
      
      connectNotificationSent = true;
      
    }

    // Button
    for(counter = 0; counter < 7; counter ++){
      
      handleButton(counter);
      
    }

  }

}

getGames.ino

// Games
// Set Inputs
void setInputs() {
  
  // Make the button line an input
  pinMode(DLE_UP, INPUT_PULLUP);
  pinMode(DLE_DOWN, INPUT_PULLUP);
  pinMode(DLE_LEFT, INPUT_PULLUP);
  pinMode(DLE_RIGHT, INPUT_PULLUP);
  pinMode(DLE_FIRE, INPUT_PULLUP);
  pinMode(DLE_SPACE, INPUT_PULLUP);
  pinMode(DLE_SPACEA, INPUT_PULLUP);
  // Initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
  // Turn the LED on HIGH 
  digitalWrite(LED_BUILTIN, HIGH);

}

// Handle Button
void handleButton(int keyIndex){
  
  // Handle the button press
  if (!digitalRead(keyPins[keyIndex])){
    
    // Button pressed
    if (!keyStates[keyIndex]){
      
      // Key not currently pressed
      keyStates[keyIndex] = true;
      bleKeyboard.press(keyCodes[keyIndex]);
      
    }
    
  } else {
    
    // Button not pressed
    if (keyStates[keyIndex]){
      
      // Key currently pressed
      keyStates[keyIndex] = false;
      bleKeyboard.release(keyCodes[keyIndex]);
      
    }
  }
  
}

setup.ino

// Setup
void setup()
{

  // Set Inputs
  setInputs();

  // ESP32 BLE Keyboard
  bleKeyboard.begin();

}

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