Difference between revisions of "ELET114A Bluetooth Module"

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Step 3: Go to the App store, search for the application – LightBlue and install.<br>  
 
Step 3: Go to the App store, search for the application – LightBlue and install.<br>  
 
Step 4: Click/Hit Settings -> Bluetooth, enable the Bluetooth and then open the LightBlue.<br>  
 
Step 4: Click/Hit Settings -> Bluetooth, enable the Bluetooth and then open the LightBlue.<br>  
+
 
 +
[[File:Lightblue.png]]<br>
 +
 
 
Step 5: If the Bluetooth is connected successfully, you will see ELET_BLE_XXXXXX as shown in Fig 4. Hit it to connect, then it redirects to the interface in Fig 5. Read and Write Page are separated.<br>  
 
Step 5: If the Bluetooth is connected successfully, you will see ELET_BLE_XXXXXX as shown in Fig 4. Hit it to connect, then it redirects to the interface in Fig 5. Read and Write Page are separated.<br>  
 
        
 
        
Fig 4                                Fig 5                       
+
[[File:3009AD.png]]<BR>
 +
               
 
Step 6: Read the message<br>
 
Step 6: Read the message<br>
 
Tap 0xFFE2 to enter into the interface in Fig 6, tap Hex in the top right corner to set the character type.<br>   
 
Tap 0xFFE2 to enter into the interface in Fig 6, tap Hex in the top right corner to set the character type.<br>   
 
Among the types (Fig 7), choose UTF-8 String.<br>
 
Among the types (Fig 7), choose UTF-8 String.<br>
 
          
 
          
Fig 6                              Fig 7
+
[[File:0Xffe2.png]]<br>
 +
 
 
Hit Listen for notifications to read the value. Open Serial Monitor, select baud rate 115200, and send “Hello!”, then you will receive it in your iphone.<br>
 
Hit Listen for notifications to read the value. Open Serial Monitor, select baud rate 115200, and send “Hello!”, then you will receive it in your iphone.<br>
   
+
[[File:Serialmonitor.png]]   
  
 
Step 7:Write the message<br>
 
Step 7:Write the message<br>
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Among the types (Fig 7), choose UTF-8 String. Hit Write New Value to write a message.<br>
 
Among the types (Fig 7), choose UTF-8 String. Hit Write New Value to write a message.<br>
 
      
 
      
Fig                      Fig 9                Fig 10
+
[[File:0xffe3.png]]<br>
 +
 
 
Then you can see the message sent from the phone in Serial Monitor.<br>
 
Then you can see the message sent from the phone in Serial Monitor.<br>
 
+
 
 +
[[File:Write12.png]]<br> 
 +
 
=='''Testing by AT Command'''==
 
=='''Testing by AT Command'''==
 
Step 1. Build the circuit.<br>
 
Step 1. Build the circuit.<br>
Bluetooth Module FTDI
+
{| class="wikitable"
VCC VCC
+
|-
GND GND
+
|Bluetooth Module
TXD TXD
+
|FTDI
RXD RXD
+
|-
 +
|VCC
 +
|VCC
 +
|-
 +
|GND
 +
|GND
 +
|-
 +
|TXD
 +
|TXD
 +
|-
 +
|RXD
 +
|RXD
 +
|}
 
   
 
   
  

Revision as of 08:08, 23 March 2017

Introduction

Ehasfd.png
The ELET114A Bluetooth module follows the BT2.1+EDR/3.0/4.0 Bluetooth profile and supports SPP, HID and so on. This module integrates the MCU and Bluetooth chip, thus boasts being high integrated, low consumption, and excellent Bluetooth radio frequency.

Features

Bluetooth Specification: V2.1+ EDR, BT3.0, BT4.0 (BLE)
Operating Frequency Band: 2.4 -2.48GHz unlicensed ISM band
Main Digital Interface: UART
RX Sensitivity: -88dBm
Operating Voltage: +5V 20mA
Operating Temperature: -30 ~ +85 ℃
Dimensions: 50 x 24 x 2mm

Pin Descriptions

VCC: Positive pole of the power source
GND: Ground
TXD: Serial interface, transmitting terminal
RXD: Serial interface, receiving terminal

Using SunFounder Uno

Step 1: Compile and upload the code before building the circuit.

/****************************************/
#include <SoftwareSerial.h>

SoftwareSerial mySerial(7, 8); // RX, TX  
// Connect HM10      Arduino Uno
//     TXD          Pin 8
//     RXD          Pin 7

void setup() {  
  Serial.begin(115200);
  // If the baudrate of the HM-10 module has been updated,
  // you may need to change 9600 by another value
  // Once you have found the correct baudrate,
  // you can update it using AT+BAUDx command 
  // e.g. AT+BAUD0 for 9600 bauds
  mySerial.begin(115200);
}

void loop() {  
  char c;
  if (Serial.available()) {
    c = Serial.read();
    mySerial.print(c);
  }
  if (mySerial.available()) {
    c = mySerial.read();
    Serial.print(c);    
  }
}
/****************************************/

Step 2: Connect the circuit.

Bluetooth 4.0 Uno Board
VCC 5V
GND GND
TXD Pin 8
RXD Pin 7

Bluetoothuno.png

Using Android

If you are using an Android phone, please follow the steps below:
Step 3: You need to download a Bluetooth 4.0 debugging assistant onto the mobile phone to connect it with the Bluetooth 4.0 module. We've provided the tool in Android. Just download BlueTooth.zip on your smart phone and decompress. Then you can see a file BlueTooth. Enable Bluetooth on your phone and install it.

213.png

Step 4: Open the installed app. It will directly go to the Bluetooth pairing interface. So first pair your phone and the module.

Bluetoothconnect.png

Step 5: After the pairing is done successfully, you'll be redirected back to the app homepage (Fig 1). Then tap Select Device at the top right corner. On the page, find the Bluetooth and hit it (Fig 2). Tap Connect. When Connect changes to Connected, it indicates that the pairing is good. At the same time the LED indicator on the module will change from blinking to constant lighting.

Select device.png

Step 6: Tap serial monitor in Arduino IDE, and type in “Hello!”, then you will receive it in the mobile phone. Similarly, SunFounder send by the phone will appear in the serial monitor.

Hello receive.png

Use iOS

If you are using an iPhone or MacBook, please follow the steps below (iPhone as an example):
Step 3: Go to the App store, search for the application – LightBlue and install.
Step 4: Click/Hit Settings -> Bluetooth, enable the Bluetooth and then open the LightBlue.

Lightblue.png

Step 5: If the Bluetooth is connected successfully, you will see ELET_BLE_XXXXXX as shown in Fig 4. Hit it to connect, then it redirects to the interface in Fig 5. Read and Write Page are separated.

3009AD.png

Step 6: Read the message
Tap 0xFFE2 to enter into the interface in Fig 6, tap Hex in the top right corner to set the character type.
Among the types (Fig 7), choose UTF-8 String.

0Xffe2.png

Hit Listen for notifications to read the value. Open Serial Monitor, select baud rate 115200, and send “Hello!”, then you will receive it in your iphone.
Serialmonitor.png

Step 7:Write the message
Tap 0xFFE3, and then tap Hex in the top right corner to set the character type.
Among the types (Fig 7), choose UTF-8 String. Hit Write New Value to write a message.

0xffe3.png

Then you can see the message sent from the phone in Serial Monitor.

Write12.png

Testing by AT Command

Step 1. Build the circuit.

Bluetooth Module FTDI
VCC VCC
GND GND
TXD TXD
RXD RXD


Step 2. Set parameters.
Run the serial debugging tool sscom32. Set the parameters first.
1) Run Open Com to check the COM port. Select the corresponding COM port as shown below.

2) Select the correct baud rate. Here we select 115200bps as shown below.

3) Before sending the command, tick the SendNew checkbox, then input “AT+MAC?” below Data input. If the Bluetooth module works normally, it will return the module’s address as shown below.

4) For more directives, please check the Datasheet of ELET114A.

Resources

Sscom32EZIP.jpg

BlueToothZIP.jpg

ELET114A_Datasheet PDF.jpg