Hi y’all,
Good morning for ones who have some sun and evening for the others. 
I’ve encountered a problem with my two Bluetooth Shields that I’ve purchased on the Seeedstudio website.
I’ve followed the instructions on the wikipage to make them communicate but it doesn’t work and I cannot sleep since one week 
Plz HELP
Despite of all my efforts, the green LED blinks always twice a second.I’ve also bought a packet sniffer from TI to check if there is any transmission of the bluetooth signal but is not 
What solutions can you provide PLZ
anything is welcomed!
Thanks and have a good day
that’s is the code I also tried to connect with the CC2541 sensortag from TI:
[code]/*
In this code, we are goin’ to test
the communication between one Arduino Uno Card and the sensor tag
through a bluetooth connection
This code is uploaded in the Master Board
*/
#include <SoftwareSerial.h>
//Pins 2 and 3 defined as RX and TX
#define Rx 2
#define Tx 3
//On crée un objet blueToothSerial pour utiliser l’Uart sur les broches RX et TX
SoftwareSerial blueToothSerial(Rx,Tx); // RX, TX
//Variable which contains received data from the Bluetooth link
char received = ‘0’;
//Buffer which contains data received from the terminal
String received_terminal = “”;
//Buffer which contains data received from the Bluetooth link
String received_bt = “”;
//Declaration of the buffer of reception
String received_buffer="";
//Boolean variable which turn into true if
//Something has been read
boolean reception_OK=false;
/************************************************************************************************************
*Setup Function *
************************************************************************************************************/
void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(9600);
pinMode(Rx,INPUT);
pinMode(Tx,OUTPUT);
//Function which initialize Bluetooth connection
setupBlueToothConnection();
}
/*************************************************************************************************************
**Infinite loop *
*************************************************************************************************************/
void loop()
{
//On vérifie si on a reçu des données via la liaison Bluetooth
if(blueToothSerial.available()>0)
{
//recu_bt is a variable which contains
//what is read by the bluetooth link
char recu_bt = blueToothSerial.read();
received_bt += recu_bt;
//We confirm reception
Serial.println("Bluetooth received");
//We display what we just received
Serial.println(received_bt);
}
if(Serial.available())
{
//recu is a variable which contains
//what is read by the serial link
char recu = Serial.read();
received_terminal += recu;
if(recu=='\n')
{
Serial.println("All received");
Serial.print("La commande est:\r");
Serial.println(received_terminal);
Serial.println("Sending by Bluetooth");
String received_terminal_n = received_terminal;
received_terminal_n.replace("\n","\r");
String Commande_blueTooth = "\r\n";
Commande_blueTooth += received_terminal_n;
Commande_blueTooth += "\n";
blueToothSerial.print(Commande_blueTooth);
received_terminal="";
}
}
}
/************************************************************************************************************
*Function which initialize Bluetooth Connection *
************************************************************************************************************/
void setupBlueToothConnection()
{
//Set BluetoothBee BaudRate to default baud rate 38400
blueToothSerial.begin(38400);
//Configuring the Board as Master
blueToothSerial.print("\r\n+STWMOD=1\r\n");
//The name of our master is just MASTER
blueToothSerial.print("\r\n+STNA=MASTER\r\n");
//Activating the auto-connection mode
blueToothSerial.print("\r\n+STAUTO=1\r\n");
//Permit to paired devices to connect at UNO
// blueToothSerial.print("\r\n+STOAUT=1\r\n");
delay(2000); // This delay is required.
//make the master inquire
blueToothSerial.print("\r\n+INQ=1\r\n");
Serial.println("Master is inquiring!");
delay(2000); // This delay is required.
blueToothSerial.flush();
//Get back datas from the slave
while(blueToothSerial.available()>0)
{
received = blueToothSerial.read();
received_buffer += received;
reception_OK=true;
}
//We check if something has been read
if(reception_OK)
{
//We display what we have received
Serial.println(received_buffer);
Serial.println("Connexion etablie");
}
else
{
Serial.println("NOTHING has been read!!");
}
//Connecting to the sensor Tag
//whose MAC Adress is:0x9059AF0AAB43
blueToothSerial.print("\r\n+CONN=90,59,AF,0A,AB,43\r\n");
blueToothSerial.flush();
while(blueToothSerial.available()>0)
{
received = blueToothSerial.read();
received_buffer += received;
reception_OK=true;
}
//We check if something has been read
if(reception_OK)
{
//We display what we have received
Serial.println(received_buffer);
Serial.println("Connexion au SensorTag etablie");
}
else
{
Serial.println("NOTHING has been read!!");
}
/*
blueToothSerial.flush();
//Connecting to the round red thing
//whose MAC Adress is:0xD466D8E68E5D
blueToothSerial.print("\r\n+CONN=D4,66,D8,E6,8E,5D\r\n");
if(blueToothSerial.available()>0)
{
Serial.println("Connexion au bidule rouge etablie");
}
*/
}
[/code]
bluetooth shield seems very simple~~did you plug the jumper into the right place?