问将数据从BLE SHIELD Arduino流式传输到iPhone

EN

#include <Arduino.h>
#include <SPI.h>
#include "ble.h"

unsigned int reading = 0;

void setup()
{
  SPI.setDataMode(SPI_MODE0);
  SPI.setBitOrder(LSBFIRST);
  SPI.setClockDivider(SPI_CLOCK_DIV16);
  SPI.begin();

  ble_begin();

  Serial.begin(57600);
}

unsigned char buf[16] = {0};
unsigned char len = 0;

void loop()
{

  ble_do_events();

  if(ble_connected()){

      reading = 10; //this is fake data for testing purposes.
      buf[0] = reading;
      reading = reading << 8;
      reading |= 11; //again same fake data
      buf[1] = reading & 0xFF;
      len = 2;
      Serial.print(reading); Serial.print(" -> LSB:"); Serial.print(buf[1], HEX); Serial.print(" MSB:"); Serial.println(buf[0], HEX);

    len = 2;
    for (int i = 0; i < len; i++)
      ble_write(buf[i]);
    ble_write(0x0D);
    len = 0;

    ble_do_events();

    delay(20);
  }
}