THNG:STRUCTION Application part for a DimmableColorLight on an ESP8266

thngstruction_dimmableColorLight_app.c

// ------------------------------------------------------------------------------------------------------------------
// Application Handlers
// TODO: Implement application functionality here
// ------------------------------------------------------------------------------------------------------------------


/** Pushes a new event to the event FIFO */
void wot_events_push(const char *name, const char *description, const char *time);

/** TODO: Implement application-specific code here by filling the app_...(...) functions */

// HINT: #include your own libraries here if you need them (e.g. for sensor libraries)
#include <Adafruit_NeoPixel.h>


// HINT: declare/define your globals here
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(1, D2, NEO_GRB + NEO_KHZ800);
int dim_value = 0;    // [%] 0=off, 100=on
int breathing_value = 100; // [%]
int breathing_dir = 1;
bool b_breathing = false;
uint32_t color = pixels.Color(255,255,255);
char color_buf[8];
bool b_update = false;

/**
 * app_setup() is called by setup() after Serial and networking has been made
 * available. This is a good place to initialize your own hardware parts like
 * sensors etc., and to initialize your own variables.
 */
void app_setup() {
  pixels.begin();
  pixels.setPixelColor(0,color);
  pixels.setBrightness(0);
  pixels.show();
}



/**
 * app_loop() gets called by loop() function in regular intervals. This is good
 * place to check for conditions (e.g. from sensors) and raise events. Additionally,
 * actions handling code should be performed here.
 * It's not run in a separate thread, so please do not delay(..) in here, otherwise
 * it can block the http procotol handling.
 */
void app_loop() {
  if ( b_update || b_breathing) {
    if ( b_breathing) {
      pixels.setPixelColor(0,color);
      pixels.setBrightness((dim_value*breathing_value)/100);
      pixels.show();      
      delay(15);
    } else {
      pixels.setPixelColor(0,color);
      pixels.setBrightness(dim_value);
      pixels.show();      
    }
  }

  if (b_breathing) {
    breathing_value += breathing_dir;
    if ( breathing_value >= 100) {
      breathing_value = 100;
      breathing_dir *= -1;
    }
    if ( breathing_value <= 0) {
      breathing_value = 0;
      breathing_dir *= -1;
    }
  }
}

/**
 * app_request_start_breathing is called by http handlers every time a client
 * requests action "start_breathing". Returns true if action has been handled
 * successfully, false otherwise.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request. For longer running actions, remember
 * action state and implement actions processing within app_loop().
 */
bool app_request_start_breathing() {
    b_breathing = true;
    return true;
}

/**
 * app_request_stop_breathing is called by http handlers every time a client
 * requests action "stop_breathing". Returns true if action has been handled
 * successfully, false otherwise.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request. For longer running actions, remember
 * action state and implement actions processing within app_loop().
 */
bool app_request_stop_breathing() {
    b_breathing = false;
    return true;
}






/**
 * app_get_color is called by http handlers every time property "color"
 * is requested by a client in a read operation.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request, so make its execution as short as possible.
 */
const char* app_get_color() {
    return color_buf;
}

int hex_nib_to_int(char v) {
  if (v >=65 && v <= 70) {
    return (v-65)+10;
  }
  if (v >=97 && v <= 102) {
    return (v-97)+10;
  }
  if (v >=48 && v <= 57) {
    return (v-48);
  }
  return 0;
}

/**
 * app_set_color is called by http handlers every time property "color"
 * is requested by a client in a write operation.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request, so make its execution as short as possible.
 */
void app_set_color(const char* v) {
  if (strlen(v) >= 7 && v[0] == '#') {
    strncpy(color_buf, v, sizeof(color_buf));
    int r,g,b = 0;
    r = (hex_nib_to_int(v[1])<<4)+hex_nib_to_int(v[2]);
    g = (hex_nib_to_int(v[3])<<4)+hex_nib_to_int(v[4]);
    b = (hex_nib_to_int(v[5])<<4)+hex_nib_to_int(v[6]);

    color = pixels.Color(r,g,b);
    b_update = true;
  }
}



/**
 * app_get_level is called by http handlers every time property "level"
 * is requested by a client in a read operation.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request, so make its execution as short as possible.
 */
int app_get_level() {
    return dim_value;
}

/**
 * app_set_level is called by http handlers every time property "level"
 * is requested by a client in a write operation.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request, so make its execution as short as possible.
 */
void app_set_level(int v) {
  dim_value = v;
  b_update = true;
}



/**
 * app_get_on is called by http handlers every time property "on"
 * is requested by a client in a read operation.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request, so make its execution as short as possible.
 */
bool app_get_on() {
    return (dim_value == 100);
}

/**
 * app_set_on is called by http handlers every time property "on"
 * is requested by a client in a write operation.
 * TODO: Implement custom action logic here. Remember this function blocks
 * processing of http request, so make its execution as short as possible.
 */
void app_set_on(bool v) {
  dim_value = (v?100:0);
  b_update = true;
}

// ------------------------------------------------------------------------------------------------------------------
// END Application Handlers
// ------------------------------------------------------------------------------------------------------------------