A low-power short-range wireless protocol.

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0
votes
1answer
30 views

Bluetooth headset button replacement

I have a Samsung HM1300 headset and want to emulate the call button signal via a microcontroller. Here is a pic of the inside of the headset: (Original) The gold button is the call button. I see ...
0
votes
0answers
8 views

Is it possible to switch low energy mode and high speed mode using a same bluetooth chip

I want make a device that connected with my phone using low energy mode for save battery. However I want transfer some big data using it and "low energy mode" speed is not acceptable. Can I using a ...
0
votes
0answers
16 views

Hacking a Bluetooth headset

So I have a Samsung HM1300 (http://www.samsung.com/us/mobile/cell-phones-accessories/BHM1300NBACSTA). I would like to hack this device, and transmit the button data from the call button for something ...
-3
votes
0answers
26 views

At89c51 project [closed]

I need to know how to connect a wireless bluetooth module to it.
1
vote
0answers
75 views

As a beginner, how can I learn about basic interfacing? [closed]

I have a good background in programming (C, C++, Arduino, Python, Objective-C), and am majoring in electronics engineering. We have been taught about Digital Logic, Basic Microcontrollers (8051 - ...
0
votes
0answers
55 views

How to replace all the arduino shields with just one [closed]

I came to know about a shield named 1sheeld by which we can use our android phone as many shields like g-sensor, GSM and etc. So this product is not available in my country and how can I replicate it ...
0
votes
2answers
78 views

Best way to wirelessly transmit and receive data

I'm working on a project that requires wireless transmission and reception of data. I wonder what the best technology would be. It is not tons of data maybe not even a kilobyte. And the range should ...
0
votes
1answer
63 views

Adding a switch to an existing light

I've read about 3-way and 4-way switches but I don't understand something. I am aiming to create a bluetooth controlled home network. One of the modules would include a light switch. How would I go ...
0
votes
0answers
58 views

MSP430F5529 & Bluetooth module data transfer over UART issue

I'm taking analog input from a sensor and feeding it to the in-built 12-bit ADC on the MSP430. The ADC code tested by itself is performing the A-D conversion correctly and outputting the values as ...
2
votes
0answers
56 views

Does a 40 MHz radio frequency have any interference to Bluetooth signal?

From my understanding, the Bluetooth signal is using a 2.4 GHz frequency. However, when someone is playing with a 40 MHz RC vehicle, the Bluetooth signal keep on getting interrupted or disconnected. ...
0
votes
1answer
52 views

What components do I need to connect a phone to my device via Bluetooth?

I have a phone I want to connect to a docking station I am making, via Bluetooth for as cheap as possible. As I understand the situation, all I need is something that can pick up a bluetooth signal ...
0
votes
3answers
149 views

What is the component in bluetooth module

Last month, I bought a bluetooth audio module on eBay. And I wonder what components are on this PCB. In the picture, what is the component in the top red box? What is the component in the bottom red ...
24
votes
5answers
4k views

Why 2.4 GHz Band?

Bluetooth, WiFi, Zigbee, Remote Controls, Alarms, Cordless Phones etc.. Why all of these protocols, devices, etc. use 2.4 GHz band instead of 3.14 GHz. What is so special about it?
0
votes
1answer
115 views

Control relay from Bluetooth on ATtiny85

I know someone else has made a Bluetooth transmitter to a relay so i wanted to ask a few questions about it being possible? I am an almost newbie at electronics but i do know a few things, so first of ...
-1
votes
1answer
57 views

Audio bluetooth board. RX and TX?

Looking at a usb bluetooth audio aux device board I saw RX and TX. What are these points for?
1
vote
2answers
102 views

Is it possible to have an universal RF receiver and transmitter (Wifi / Bluetooth)

First of I should make clear that I'm not an engineer. My friends who are helping me with this project are. But me.. well lets just say I know the basics. Problem I have to be honest, it's a first ...
3
votes
0answers
78 views

Can several bluetooth devices be seen as one unique device from the point of view of an Android smartphone?

I need to put multiple bluetooth modules in various places so that they trigger something on a smartphone. Of course the smartphone has to grant access to the bluetooth device at some point, but I ...
0
votes
1answer
232 views

HC-06 Bluetooth module not responding to any AT commands

I am trying to interface with a HC-06 module but I can't talk to the module over serial. My VCC is connected to 5V (also tried 3.3V) of my Arduino Uno, and GND is connected to ground of it ...
0
votes
0answers
44 views

Bluegiga BGScript blinkylight example

I'm trying to code BGScript but I have some questions. Can you help me? I have DKBLE112 which is Development Kit of the BLE112 module built around the CC254x, an 8051 derivative with an on-chip BLE ...
0
votes
1answer
95 views

Bluegiga BGScript Accelerator sample. I want to understand the example code

I started BGScript few days ago. I have many questions about BGScript. Any help will be appreciated. Thanks! *My goal is advertising with accelerator data via BluetoothLE. I am going to use ADXL345 ...
1
vote
2answers
74 views

Most energy efficient way to detect motion

I am hacking together a prototype wrist band, with BLE as the main component. I'd like the device to detect a bump or a wave. What would be the most energy efficient way to do so? I'd like the ...
0
votes
1answer
24 views

Bluetooth device identification & information during pairing

Let's say I'm creating a device that communicates with the computer using Bluetooth. I'm at the point where pairing and exchanging data between the device and the computer works. Is there anything in ...
0
votes
0answers
53 views

Serial Port Profile connectivity in CSR 8670 Audio Development Kit

I am trying to make connection between my CSR 8670 Audio kit and Android phone through SPP profile, But while trying this came to know that my SPP Profile on Kit side is not enabled. I am trying to ...
1
vote
0answers
59 views

L293D causing motors to move slowly

I'm modifying an RC car to use bluetooth. I use the L293D chip, and when I connect the motor to the chip, the car barely moves. If I connect the 9V battery directly to the motor, it moves the car ...
0
votes
0answers
18 views

Changing bluetooth identification data

I bought this bluetooth audio module from DX.com. Is it possible to change the bluetooth identification name, which appears on the phone to pair, from what is mentioned?
2
votes
2answers
118 views

Bluetooth Low Energy general questions

I'm facing some problems understanding how Bluetooth LE works. First: How is a connection established? Peripheral (eg sensor) sends advertisements Central (eg tablet) has to scan actively ...
1
vote
0answers
55 views

To Activate RFCOMM in CSR8670 Audio Development Kit

I have a device CSR-8670 which act as SINK and on another side I have Android phone which act as Source. I am able to connect through RFCOMM when my both server and client is ANDROID phone but not ...
0
votes
0answers
45 views

UART PIC18F8722

I'm trying to connect a bluetooth module (the baudrate is 9600) with a PIC18F8722. The connection is with UART and I programmed this: ...
0
votes
0answers
76 views

UUID of CSR 8670 AUDIO DEVELOPMENT KIT

Does anyone have any experience ,how to make changes in UUID of CSR 8670 Audio Development Kit? Actually I am trying to connect my Android Device with this CSR Audio Dev. Kit but am not able to make ...
0
votes
1answer
69 views

Bluetooth keyboard?

Can the Bluetooth board "XS3868" be used for in a Bluetooth keyboard for a computer? Without using an Arduino
1
vote
3answers
52 views

Using Bluetooth 4.0/LE verses RF

I am asking this question in hopes to get a solid answer from anyone who has direct experience dealing with the most recent RF as well as Bluetooth 4.0/LE developments. What I am essentially trying ...
1
vote
2answers
234 views

Is Bluetooth less susceptible to jamming than wifi?

I am developing a mobile peer to peer application that will probably be subjected to RF jamming, and I'm wondering if bluetooth is perhaps less susceptible to jamming than ad-hoc wifi. Bluetooth has ...
0
votes
0answers
71 views

HC-06 Bluetooth low power mode?

I'm currently using the HC-06 BT module and am trying to figure out if there's a low power mode available. I've found documentation online that say's there is a sleep mode but says nothing about how ...
-1
votes
1answer
73 views

bluetooth headset with LCD and memory

I was wondering if it is possible to create a bluetooth device which would have a LCD screen and some memory (1kb) for making and receiving calls. From my research ( and I am far from an EE, but ...
0
votes
0answers
20 views

Strange bluetooth module behaviour and UART tips

I'm bit new trying out with bluetooth modules and I started using one. Bluebee Gold Bluetooth devicedevice link The first problem that I have is when is configure my controller(PIC) with setting RX ...
1
vote
2answers
101 views

Bluetooth module (BLE112) USART: do I need to use its own microcontroller?

I am looking into the this module. All I need it for in my design is USART connection to my MCU (TX/RX connections). I don't care for the internal microcontroller (yet). My question: if I connect, ...
0
votes
0answers
31 views

Audio streaming issue with CSR-8670 kit

We are using Source App in "Analogue mode" in which we reached to a point where our kit is able to paired with the mobile device but when we start to play audio in mobile through paired CSR audio ...
1
vote
1answer
67 views

Bluetooth Module with Analog Input

I'm building a wearable Bluetooth device. When a button is pressed on the device, it sends a signal to the user's smartphone and consequently an app on said phone. I'm an app developer with no ...
1
vote
0answers
45 views

Bluetooth CSR8670 - How to make the kit discoverable? [closed]

I am working on CSR8670 Development Kit, in which I am trying to make the kit discoverable and also trying to pair the Kit with another Device.If anyone having any experience about CSR8670 kits ...
0
votes
1answer
59 views

Bluetooth 2.1 EDR sniffer

I'm new to Bluetooth technology and I'm trying to find something capable of sniffing Bluetooth 2.1 + EDR data. I see a lot of BLE/4.0 related devices. So far the closest things I've found were: ...
3
votes
1answer
202 views

Possible to re-program microcontroller over Bluetooth?

I am looking at making an embedded design featuring an ARM Cortex M3 MCU and bluetooth. I would like to be able to update its firmware over Bluetooth periodically. Is this possible with the following ...
2
votes
3answers
104 views

Wireless EEG electrode design

Currently, all 'wireless' EEG systems acquire signals from electrodes which are wired to an amplifier, a filter, a digitizer and then finally a wireless module. I want to design a system that's ...
-2
votes
1answer
78 views

What signal will come in?

I have a simple setup as shown, I would like to know what kind of RF signal will come in? Since the filter is configured around 2.4GHz, will all ISM (WiFi, Bluetooth, Zigbee, etc.) come in? The ...
0
votes
1answer
58 views

Measruement of RF Signal strength / phase difference

I would like to measure the signal relative strength and phase difference of two bluetooth(BT) receivers. and I found a chip that will do exactly that, AD8302 ...
0
votes
2answers
55 views

Xbee module and bluetooth module

Is it possible to connect Xbee module (Using Xbee shield) as well as Bluetooth module at the same time to any of the Arduino boards like Uno? Most of the sites give information about connecting one ...
-1
votes
1answer
83 views

Bluetooth project | Bluetooth transmitter connection to android mobile [closed]

Description: I want to create a Bluetooth transmitter that will pair with my android phone. I will send a ping(alert kind of notification) from my Bluetooth transmitter device(on a button press), and ...
1
vote
1answer
96 views

Can two BLE devices communicate?

I researched that starting from Bluetooth v4.1 a BLE device can be either a master or a slave. I was curious if anyone has tried it? And how to go about it. Also I am new to hardware and would like ...
0
votes
2answers
74 views

MCU cannot communicate with Bluegiga WT12 module

I have the evaluation kit EK-WT12 for Bluegiga WT12 module being controlled by a TI Launchpad. I have used the evaluation kit to communicate to a computer with SPP profile and I have sent and received ...
0
votes
2answers
90 views

Can bluetooth LE detect a touch using proximity?

How accurate is the proximity feature in BLE, can I detect if two BLE are touched tougether?
1
vote
0answers
115 views

A Project on Bluetooth | Bluetooth beginner | video tutorials of basic bluetooth projects | not audio bluetooth and arduino projects [closed]

Description: I want to create a Bluetooth transmitter that will pair with my android phone. I will send a ping(alert kind of notification) from my Bluetooth transmitter device(on a button press), and ...