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我使用RedBear BLE Shield將數據連續傳輸到iOS。將數據從BLE SHIELD Arduino流式傳輸到iPhone
我使用的SDK提供聊天iOS應用調試下面的Arduino代碼:
#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);
}
}
我遇到以下問題: 我第一次嘗試連接到BLE保護它只是執行循環一次,它會卡住。那麼,如果我斷開連接並重新連接,數據就會按照我的意願開始流式傳輸。
任何人都試過嗎?