A low-power short-range wireless protocol.

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0answers
17 views

CC2564 Vendor-Specific HCI Commands

Does anybody know where to find full list of vendor-specific commands for TI's CC2564? I found that TI's proprietary testing tool uses some undocumented commands during chip setup, for example, with ...
0
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0answers
17 views

i need advice about mc9s12dj256cpve [on hold]

I need to program mc9s12dj256cpve via ISP Cable so kindly can any one advice me programmer can red and program the mc9s12dj256cpve via ISP cable
1
vote
1answer
54 views

small scale positioning system

I have previously entered a competition called "robocup juinor australia" for a few year now with increasingly good performance each year, this year we have been sponsored for over 15k which is a big ...
1
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1answer
27 views

Bluetooth audio stream to commercial headset

I would to connect my simple audio player (Arduino + https://www.sparkfun.com/products/11125 ) to a Bluetooth headset you can buy at the market. How can I do ? Is it possible ?
0
votes
0answers
21 views

HC 05 piconet 1 master 2 slaves

I was wondering if it is possible to connect 3 HC05 Bluetooth modules. I would like to have one as master sending messages to all (2 as a start) slave modules (the slaves are connected to arduino to ...
0
votes
0answers
16 views

Cannot receive heart rate data using JYMCU Arduino

I am encountering an issue trying to retrieve a heart rate reading from an op-amp and instrumentation amplifier and sending it via Bluetooth. I used this website as a basis of my design: ...
0
votes
1answer
48 views

Bluetooth - NFC communcation

I want to build a device that would recieve a NFC TAG and send it via Bluetooth to the Mobile Phone, that has Bluetooth enabled. I am searching for some basic articles or some starting points on how ...
-2
votes
1answer
27 views

Bluetooth Interference with High Pitched Tone

i'm building a portable stereo system and am having some unwanted noise from the bluetooth receiver. the noise is typically a high pitched tone. please see the attachment for my chicken scratch ...
0
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0answers
31 views

Best RF frequency for my application

I need to design a device that can transmit an RF signal about 200 meters. The data transferred is very simple. One device simply has a button, that when pressed transmits a two-digit ID to the ...
0
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0answers
28 views

Bluetooth antenna design

I am building a system with bluetooth/wifi/GSM. Since I am an RF noob, I have some questions regarding antennas. Some modules come with loop antenna and if you want to create your own PCB there is a ...
0
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0answers
50 views

Can I put a bluetooth dongle inside a cantenna?

I've got a remote temperature doohickey for my BBQ that bluetooths to my phone. Works great; love it; nice UI. It's small, 4 cm diam x 2 cm thick, but the range is good, 50-60 feet. But. I want a ...
0
votes
1answer
34 views

HC06 Weak Transmission

I have been working for a while with a HC06 bluetooth module along with an Atmega 168A microcontroller and everything was fine until a day ago when the bluetooth transmission just went off. Data is ...
2
votes
2answers
70 views

Data Whitening Block Diagram

I would like to understand this block diagram and how it relates to the formula: g(D) = D^7 + D^4 + 1 Supposedly this helps to generate a whitening word used within bluetooth radio, the empty boxes ...
0
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0answers
38 views

Amateur designing a quadcopter: is it possible to use Fizzly for remote control?

I am a total amateur, so forgive me if my question is naive. I am starting to design my quadcopter, and I was wondering if it would be possible to control it via bluetooth using Fizzly. It would be ...
0
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0answers
23 views

Trying to use BC417 bluetooth with LM4F232H5QD Evaluation Board

I am new to embedded. I am using STELLARIS LM4F232H5QD Evaluation Board. I want to get data from this board using bluetooth. And i have ...
1
vote
2answers
114 views

How to detect a Bluetooth low energy device or IBeacon without a smart phone?

I am putting together a simple project where my ibeacon (or a small BLE device) causes the receiver to trigger an alarm when inside the range of the receiver (5 ft max). The receiver will not be smart ...
0
votes
1answer
40 views

HC-0X Bluetooth Module Difference between Slave & Master

whats the difference between a Module HC-05 Master and HC-06 Slave? I have a slave module (HC-06) but im not sure whats the purpose of the word "Master" in the HC-05
1
vote
1answer
56 views

Can I modify this bluetooth keyboard to only have a certain keys so I can carry it around?

I'm trying to make a bluetooth remote shutter release thing for Androird and iOS. I asked about doing it from scratch but everyone thinks it's too ambitious for a beginner, so I gave up on that Few ...
-1
votes
2answers
108 views

What's the difference between CC2564 and CC2564MODN bluetooth TI chips?

As per title, what's the actual difference between these two chips? I dug extensively the TI site but I cannot find such info.. thanks!
0
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0answers
38 views

What's the size of the Bluetopia Bluetooth stack?

As per title, what's the size of the Bluetopia Bluetooth stack on a MCU flash? TI says that the minimum requirement is 128KB. Can I use a 128KB flash MCU? Do I have some room for something else? ...
1
vote
1answer
145 views

Connecting external 2.4GHz antenna to Intel Edison

I would like to connect an external 2.4GHz antenna to an Intel Edison. According to Mouser, there are different Edison part numbers for different antenna configurations (internal or external). ...
0
votes
2answers
95 views

Play audio from raspberry pi through my car's disc changer

I'm interested in trying to buy a raspberry pi and create a small bluetooth / airplay type module that I can plug into my car somehow and get wireless audio streaming. I don't necessarily care about ...
0
votes
1answer
32 views

Sending multiple channels with bluetooth

I have ordered my HC-05 BT modules. My question is this: Is it possible to send multiple channels over bluetooth. For example, stereo sound has two channels. I think i have seen people do this but i'm ...
1
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0answers
77 views

i want to make my own bluetooth shutter release thingy as first electronic project, what do i need? [closed]

I want to make something like this http://www.amazon.com/JBtek-Bluetooth-Wireless-Control-Shutter/dp/B00JDMIOKO/ looks like it's a tiny microcontroller with a battery in the remote, but i'm not sure ...
-1
votes
1answer
52 views

What bluetooth chip / type should be used for a remote control car? [closed]

I am building a small remote control car to be controlled by bluetooth (iOS and Android). I am having a custom circuit board built, and I want to know what bluetooth chip I should get. I would like ...
0
votes
1answer
65 views

Integrating simple Bluetooth functionality without microcontrollers

I have recently bought a Bluetooth HC-05 Module, and have followed many tutorials on integrating it with an Arduino, or a microcontroller. However I got interested in whether it is possible without ...
0
votes
1answer
218 views

Strange problem with JY-MCU (HC-06) Bluetooth module

Short explanation: data sent over the bluetooth serial does not arrive correctly to the Arduino. Yesterday I connected a JY-MCU bluetooth module to my Arduino UNO R3 to test it. I connected the TXD ...
0
votes
1answer
43 views

Where can I find the spec for receiving apple push notifications with a bluetooth device? [closed]

I'm great at finding programming documentation, not so much for EE related stuff. I can't find the protocol for receiving Apple Push notifications from a bluetooth device anywhere online. For ...
0
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1answer
43 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
20 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
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0answers
62 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 ...
1
vote
0answers
90 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
2answers
101 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
128 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
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0answers
210 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 ...
3
votes
0answers
137 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
67 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
187 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 ...
26
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
550 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
78 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
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2answers
159 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
1answer
103 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 ...
1
vote
2answers
1k 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
93 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
216 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
79 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
34 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
98 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
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0answers
85 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 ...