A low-power short-range wireless protocol.

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2 views

Switchable serial bridge (Bluetooth or USB -> Telemetry)

So I've got a simple serial bridge (wireless telemetry -> bluetooth). Now what I would like to do is to be able to use either USB or bluetooth to access the telemetry module (Not at the same time). ...
0
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0answers
38 views

Bluetooth keyboard button lost. Turning it on without a button [closed]

I lost my power button on my hp bluetooth keyboard. How do I turn it on without a button? I have tried to tip it with my key and pencil, but it doesn't work. EDITED: I did try to swap the button ...
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0answers
5 views

Is this Bluetooth module cool for Arduino? [migrated]

I am making a basic project that will have 4 or 5 arduino nodes. Each arduino will have a bluetooth module attached. The thing I want is, I want to be able for each one of these arduinos to know the ...
0
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1answer
61 views

Arduino ECG sputtering out totally random values

Hello StackExchange community, I have encountered a problem in my ECG/EKG design. I am trying to create the ECG using Arduino as a microcontroller to send/retrieve heart rate measurements via ...
0
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1answer
33 views

Bluetooth 4.0 - stream mode

I want to use Bluetooth 4.0 protocol for stream communication between MCU(STM32) and Android/iPhone smartphone. Does Bluetooth 4.0 supports any other case scenario than usual(Heart monitoring, fitness ...
0
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1answer
40 views

If I have a device that transmits data over Bluetooth, is it possible to get at that data via a different device with my own custom code?

I am looking at building a tyre pressure info system for my car, but would like to make use of the existing receiver and transmitters that screw onto your tyre's valve stems. A model exists that ...
0
votes
1answer
43 views

Send signal to smartphone via bluetooth [closed]

I would like to know what is the best way of sending a signal to a smartphone, would it be via Bluetooth? The range needed would not be more than 2 meters, and the device sending the signal should be ...
0
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0answers
5 views

Android <-> HC-05 <-> Arduino communication issue [migrated]

My project involves Android (Samsung Galaxy 2) to Arduino (Uno) communication via HC-05. HC-05 is connected to Arduino on pins 10,11 using SoftwareSerial lib. I got this setup running for a while ...
0
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1answer
37 views

Router power switch with bluetooth hands-free

I want to make a bluetooth switch for my wireless router so I can restart it via my phone. I have an old bluetooth hands-free so I'm wondering if it could be used as a power switch. I'm planing to ...
2
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2answers
49 views

Does bluetooth implement the 802.11 wireless standard?

I've read that the Bluetooth standard is 802.15, but it is implemented with 802.11. Is this true? Do they interfere with eachother? What standard is Bluetooth considered to use?
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0answers
58 views

Measuring distances electronically? [closed]

Is there any way currently known that can accurately measure the distance between two objects. Say a phone and another device like a chip or another phone. basically measuring distances ...
0
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1answer
34 views

Power source interference on Bluetooth audio module?

I am building a Bluetooth Speaker and I been getting static noise or high pitch tone with certain configuration. I am new to electronics, hopefully the seasoned hobbyists here can help me explain what ...
0
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0answers
48 views

HC-06 Auto Reset

I have a HC-06 Bluetooth Module connected to an Arduino Micro. I've hit a problem, the Bluetooth module doesn't seem to auto reset, after a device has connected and disconnected from it again! I've ...
1
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1answer
54 views

Bluetooth Compliance

After spending too long on the Bluetooth SIG (Special Interest Group) and other websites I still have no idea what is required for selling a Bluetooth enabled product so I'm hoping someone here has ...
2
votes
0answers
35 views

Combine Bluetooth Buttons (Volume up / Next, Volume Down / Previous)

I have a question regarding the control of a bluetooth device, which I would like to connect to some old headphones. Bluetooth SMD Module - BC127 There are some pins on which I can connect the ...
0
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0answers
60 views

Cannot retrieve data from homemade ECG

For the past couple of weeks, I have not been able to find a solution to my problem. My problem is that I cannot retrieve the data from my homemade ECG that I created from Arduino, using plans at ...
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2answers
51 views

Bluetooth range and Power

what happens when you increase the power of bluetooth? Is it possible to increase the range of a bluetooth signal?
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2answers
100 views

What are the UART voltage levels for the RN4020?

I've recently bought an RN4020 BLE module, but I'm having figuring out how to make it work. In the datasheet some pins are listed as 1.65V input, 1.35V out, while ...
1
vote
1answer
71 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 ...
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1answer
77 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 ?
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0answers
73 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
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0answers
21 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
58 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 ...
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1answer
37 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 ...
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0answers
33 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
44 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 ...
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0answers
54 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
48 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
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2answers
73 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 ...
1
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1answer
57 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
37 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 ...
2
votes
2answers
218 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
66 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
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1answer
61 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 ...
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2answers
133 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!
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0answers
54 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
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1answer
327 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
133 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
36 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
105 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
74 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
72 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
493 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
44 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
49 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
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0answers
22 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
86 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
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0answers
94 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
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2answers
106 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
195 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 ...