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I'm starting developing with Blend board, so sorry if this is an stupid issue but maybe you can help us.

We are trying to do a broadcasting of sensor data through BLE to be read after from a smartphone app. At the moment, we are trying to write the data through the set_name() function because we just found that way to do the broadcast without pairing.

The problem appears when we try to set a variable name, it is not working at all, because just the first name written is sent, it seems the code is ignoring the rest of the set_name() calls in the loop().

I assume this is not the right way of doing it, so ¿Is there another (easy) way of sending data broadcast? ¿Or should we pair the devices and create a GATT connection?

Thank you very much.

Hi,

Im facing some compatibility issue when I am using BLE Shield together with USB Host Shield 2.0

Whenever add codes to start the USB Host Shield, BLE shield will stop working.

Any idea where can i start to troubleshoot?

#include <RBL_nRF8001.h>
#include <boards.h>
#include <SPI.h>
#include <EEPROM.h>

// for USB Host
#include <adk.h>

// for BLE
static byte buf_len = 0;
byte queryDone = false;
uint32_t timer1;

// for USB Host
USB Usb;
ADK adk(&Usb, "TKJElectronics", // Manufacturer Name
              "ArduinoBlinkLED", // Model Name
              "Example sketch for the USB Host Shield", // Description (user-visible string)
              "1.0", // Version
              "http://www.tkjelectronics.dk/uploads/ArduinoBlinkLED.apk", // URL (web page to visit if no installed apps support the accessory)
              "123456789"); // Serial Number (optional)
uint32_t counter;
uint32_t sendcounter;
uint32_t timer;
bool connected;

void setup() {
  Serial.begin(57600);

  Serial.print("\r\nArduino Blink LED Started");
  if (Usb.Init() == -1) {
    Serial.print("\r\nOSCOKIRQ failed to assert");
    while (1); // halt
  }

  // Init. and start BLE library.
  ble_begin();
}

static unsigned char spi_old;

void loop()
{


  spi_old = SPCR;
    SPI.setBitOrder(LSBFIRST);
    SPI.setClockDivider(SPI_CLOCK_DIV8);
    SPI.setDataMode(SPI_MODE0);

  if(ble_available())
  {
    byte cmd;
    cmd = ble_read();

    Serial.print(cmd, HEX);

    // send out any outstanding data
    ble_do_events();
    buf_len = 0;
  }
  else {
      ble_do_events();

      if (millis() - timer1 >= 1000) { // Send data every 1s
      timer1 = millis();
      Serial.println(F("\nBLE not available"));
     }
  }

  ble_do_events();

  SPCR = spi_old;
  SPI.begin();

  buf_len = 0;

  Usb.Task();
  if (adk.isReady())
  {
    if (!connected) 
    {
      connected = true;
      Serial.println(F("\r\nConnected to accessory"));
    }
  }
  else 
  {  
   if (millis() - timer >= 1000) { // Send data every 1s
      timer = millis();
      Serial.println(F("adk not ready"));
   }
   if (connected) 
   {
      connected = false;
      Serial.print(F("\r\nDisconnected from accessory"));
    }
  } 
}

Please allow developers to turn off all use of the serial port by your code. The serial port is not to be used unconditionally by libraries for debugging/status, as that messes up the communication of actual data.

Also I noted that the library manager uses an old version of this code where Serial.xxxxx calls are even inline. I had to comment out all calls so I could combine a MIDI Shield with a BLE Shield.

Hai

i am using blend micro to control my devices in my project via bluetooth.Now everything is working fine but the problem is with its range i have only getting a range of 13M but that is not enough for my project so can i increase the transmission power of my board to get more range ............?
or can i increase the range by any other means.......?

Any chance that you can get the code to compile in the new 1.6.0 environment?
Arduino: 1.6.0 (Windows 8), Board: "Arduino Uno"

D:\Arduino\libraries\RBL_nRF8001\RBL_nRF8001.cpp:25:23: error: setup_msgs causes a section type conflict with __c
static hal_aci_data_t setup_msgs[NB_SETUP_MESSAGES] PROGMEM = SETUP_MESSAGES_CONTENT;

                   ^

In file included from D:\Arduino\libraries\BLE/hal_platform.h:32:0,
from D:\Arduino\libraries\BLE/lib_aci.h:34,
from D:\Arduino\libraries\RBL_nRF8001\RBL_nRF8001.h:17,
from D:\Arduino\libraries\RBL_nRF8001\RBL_nRF8001.cpp:14:
D:\Arduino\hardware\arduino\avr\cores\arduino/WString.h:38:74: note: '__c' was declared here
#define F(string_literal) (reinterpret_cast<const __FlashStringHelper *>(PSTR(string_literal)))
^
D:\Arduino\libraries\RBL_nRF8001\RBL_nRF8001.cpp:388:32: note: in expansion of macro 'F'
Serial.println(F("Advertising started"));

                            ^

Error compiling.

This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.

I have some issues with android, (nRF UART v2.0 APP)

I didn't receive this message "Hello World, works" when connection is established, and when I try to send a message, toast notification says that device is not UART capable, and disconnect.

Also tested with iPhone (with same app), works fine.

The README clearly states: "Before calling to ble_begin(), you can make use of ble_set_name("My BLE") to change the name." However, if you open up the simple chat example, uncomment the ble_set_name line, and then upload the program, the name will still be "BLE Shield" and not "My Name" as expected. I checked this using the Red Bear's Simple Chat iOS app.

I am using BLE Shield v2.0 on an Arduino Mega 2560 v3 using the latest version of the library. I am uploading to the board with an AVRISP MkII.

How can I make this library to compile for arduino zero ?

On blend micro i use SimpleChat.ino. On RPI3 i use https://www.npmjs.com/package/blendmicro this library. Blend micro send data to the node, and rpi3 read this data. If i send data to from blendmicro to the node, node not read. On node i use this code

var BlendMicro = require("#{__dirname}/../../");
// var BlendMicro = require("blendmicro");

var bm = new BlendMicro(process.argv[2]);

bm.on("open", function(){
  console.log("open");
});

bm.on("data", function(data){
  console.log(data.toString());
});

process.stdin.setEncoding("utf8");

// write data from STDIN
process.stdin.on("readable", function(){
  var chunk = process.stdin.read();
  if(chunk == null) return;
  chunk = chunk.toString().replace(/[\r\n]/g, '');
  bm.write(chunk);
});