#ifdef CPU_MAP_ESP32
	// This is the CPU Map for the ESP32 Development Controller
	// https://github.com/bdring/Grbl_ESP32_Development_Controller
	// https://www.tindie.com/products/33366583/grbl_esp32-cnc-development-board-v35/
        ...

#ifdef CPU_MAP_ESP32_LPCNC
  // This is the CPU Map for the LPCNC Shield   
  
  // It is OK to comment out any step and direction pins. This
    // won't affect operation except that there will be no output
    // form the pins. Grbl will virtually move the axis. This could 
    // be handy if you are using a servo, etc. for another axis.
    #define CPU_MAP_NAME "CPU_MAP_ESP32_LPCNC"  
    
    #define X_STEP_PIN        GPIO_NUM_12
    #define X_DIRECTION_PIN   GPIO_NUM_14
    #define X_RMT_CHANNEL   0
    
    #define Y_STEP_PIN        GPIO_NUM_27
    #define Y_DIRECTION_PIN     GPIO_NUM_26
    #define Y_RMT_CHANNEL   1
    
    #define Z_STEP_PIN        GPIO_NUM_25   
    #define Z_DIRECTION_PIN     GPIO_NUM_33      
    #define Z_RMT_CHANNEL   2   
    
    // OK to comment out to use pin for other features
    #define STEPPERS_DISABLE_PIN GPIO_NUM_13    
    
    // *** the flood coolant feature code is activated by defining this pins
    // *** Comment it out to use the pin for other features
    // #define COOLANT_FLOOD_PIN   GPIO_NUM_16     
    //#define COOLANT_MIST_PIN    GPIO_NUM_21
    
    // If SPINDLE_PWM_PIN is commented out, this frees up the pin, but Grbl will still
    // use a virtual spindle. Do not comment out the other parameters for the spindle.
    #define SPINDLE_PWM_PIN    GPIO_NUM_17 
    #define SPINDLE_PWM_CHANNEL 0
    // PWM Generator is based on 80,000,000 Hz counter
    // Therefor the freq determines the resolution
    // 80,000,000 / freq = max resolution
    // For 5000 that is 80,000,000 / 5000 = 16000 
    // round down to nearest bit count for SPINDLE_PWM_MAX_VALUE = 13bits (8192)
    #define SPINDLE_PWM_BASE_FREQ 5333 // Hz
    #define SPINDLE_PWM_BIT_PRECISION 8   // be sure to match this with SPINDLE_PWM_MAX_VALUE
    #define SPINDLE_PWM_OFF_VALUE     0
    #define SPINDLE_PWM_MAX_VALUE     255 // (2^SPINDLE_PWM_BIT_PRECISION)
    
    #ifndef SPINDLE_PWM_MIN_VALUE
        #define SPINDLE_PWM_MIN_VALUE   1   // Must be greater than zero.
    #endif
    
    // #define SPINDLE_ENABLE_PIN  GPIO_NUM_22
    
    #define SPINDLE_PWM_RANGE         (SPINDLE_PWM_MAX_VALUE-SPINDLE_PWM_MIN_VALUE)       
    
    // if these spindle function pins are defined, they will be activated in the code
    // comment them out to use the pins for other functions
    //#define SPINDLE_ENABLE_PIN  GPIO_NUM_16
    //#define SPINDLE_DIR_PIN   GPIO_NUM_16   
    
    #define X_LIMIT_PIN       GPIO_NUM_34  
    #define Y_LIMIT_PIN       GPIO_NUM_35  
    #define Z_LIMIT_PIN       GPIO_NUM_32   
    #define LIMIT_MASK        B111
    
    // if using a probe, Door, Reset, Hold, Start, Servo or Solenoid uncomment and asign a pin
    // Useable pins are 0,15, 21, 22, 32, 34, 35, 36, 39
    // Pins 34, 35, 36 and 39 need external pullup
    //#define PROBE_PIN             GPIO_NUM_32  
    //#define CONTROL_SAFETY_DOOR_PIN   GPIO_NUM_35   
    //#define CONTROL_RESET_PIN         GPIO_NUM_34  
    //#define CONTROL_FEED_HOLD_PIN     GPIO_NUM_36   
    //#define CONTROL_CYCLE_START_PIN   GPIO_NUM_39  
    
    //#define USING_SERVO  // uncomment to use this feature
    //#define USING_SOLENOID // uncomment to use this feature
    
    #ifdef USING_SERVO
      #define USE_SERVO_AXES 
      #define SERVO_Z_PIN   GPIO_NUM_27
      #define SERVO_Z_CHANNEL_NUM 3
      #define SERVO_Z_RANGE_MIN 0
      #define SERVO_Z_RANGE_MAX 10
    #endif
        
    #ifdef USING_SOLENOID
      #define USE_PEN_SOLENOID
      #define SOLENOID_PEN_PIN GPIO_NUM_16
      #define SOLENOID_CHANNEL_NUM 6
    #endif
        
    
#endif