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Code: Select all

		errRc = ::esp_ble_gap_set_device_name(deviceName.c_str());
		if (errRc != ESP_OK) {
			log_e("esp_ble_gap_set_device_name: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
		};

Code: Select all

#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEServer.h>
 
/* Timer variables */
hw_timer_t * timer = NULL;
volatile uint16_t timerTick1ms = 0;
uint32_t timeStamp = 0;
 

//                    0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  
char advertText[] = {'G','i','z','m','o',' ','0',' ', 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 0};
char inChar = 0;
char i = 0, j = 8;
uint8_t advertCounter = '0';
const int button = 0;
 
void setup() {
  Serial.begin(115200);           // Default baud rate

  /* Advertise empty data when starting up */
  advertText[5] = 9;
 
  BLEDevice::init(advertText);
  BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
  pAdvertising->addServiceUUID("5678");
  pAdvertising->setScanResponse(true);
  pAdvertising->setMinPreferred(0x06);  // functions that help with iPhone connections issue
  pAdvertising->setMinPreferred(0x12);
  BLEDevice::startAdvertising();
  delay(500);
   
  /* Get rid of any extraneous serial data on startup */
  Serial.flush();                              
  while(Serial.available()) Serial.read();
}
 
void loop() {
 
  /* RESET IF BUTTON IS PRESSED */  
  if (digitalRead(button) == LOW) { // Reboot if button is pressed
     ESP.restart();
     delay(1000);
  }
 
  /* PROCESS EACH INCOMING CHARACTER FROM THE WEIGHING MACHINE */  
  if (Serial.available() > 0)                           // A character has been received    
  {
      inChar = Serial.read();                
 
      if((inChar != '\n') && (inChar != '\r') && (j <= 20))   // Ignore the CRLF characters and truncate if too many characters
      {
        advertText[j]= inChar;
      }
           
    
      if (inChar == '\n') {                             // Linefeed is the end of the incoming string
   
         if ((millis() - timeStamp) > 750)             // Only transmit at a maximum of once per second (750ms + adv setup time) to avoid buffer overrun screwing up the adverts.
         {        
           /* One-digit advertisement counter (1 to 9, then repeat) */
           advertCounter++;
           if (advertCounter > '9')
           {
              advertCounter = '1';  
           }
           advertText[6] = advertCounter;
           String test = "test";
           esp_err_t errRc = ::esp_ble_gap_set_device_name(test.c_str());
           if (errRc != ESP_OK) {
              log_e("esp_ble_gap_set_device_name: rc=%d", errRc);
           };
           /* Update the BLE advertisement */
           BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
           pAdvertising->addServiceUUID("1234");
           pAdvertising->setScanResponse(true);
           pAdvertising->setMinPreferred(0x06);  // functions that help with iPhone connections issue
           pAdvertising->setMinPreferred(0x12);
           BLEDevice::startAdvertising();
           //delay(5);
 
           /* Advert has gone out, so re-initialise advert to null characters */
           for (j=8; j<=20; j++)
           {
              advertText[j] = 0;
           }
   
           j=8;  // We start collecting incoming data at the ninth character in the entire advertisement, eg: after "GadgetA1 "
           timeStamp = millis();
         }  
      }
      else j++;   // Data is still coming in prior to advert going out.
   }
   delay(10);
}