A low-power short-range wireless protocol.

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1answer
24 views

Pre-paired bluetooth chips

Is it possible to buy two pre-coupled bluetooth chips? So all i have to worry about is sending USB/Serial data to the master node.. Best regards, Morten
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0answers
18 views

Accelerometer output transmitted via Bluetooth [on hold]

I have a project in which I want to send the output of a standard(piezoelectric with analog output) accelerometer via Bluetooth to other devices. The sample rate of the signal that interests me is up ...
1
vote
2answers
30 views

Antenna mounting question

Here is the datasheet and drawing of the antenna on this link I need to stick out the antenna from a thick metal enclosure, how much of the antenna should stick out? Is it 19 mm (the black rubber ...
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0answers
14 views

bluetooth audio transmitter [closed]

Is there a simple bluetooth system that can be attached to Zone 2 Audio out of a home theatre system that will broadcast and automatically connect to multiple headsets or speakers simultaneously and ...
0
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2answers
64 views

Electronic compass, RF and batteries

I am currently working with a project where i am creating a small embedded board consisting of a 9DoF IMU which is transmitting its data with RF (BLE or normal RF). Furthermore there will be a battery ...
1
vote
1answer
25 views

Effects of encasing bluetooth chip and rechargeable battery in an adhesive encapsulate?

I am thinking to encase my entire bluetooth PCB along and connected battery in an adhesive such as a soft urethane or silicone encapsulate. My board and battery are each about the size of two stacked ...
0
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0answers
18 views

how to connect Hc-06 bluetooth to PS3 controller

Hello I am currently having troubles connecting my hc-06 to my ps3 controller. I am building a hovercraft for a school project. I am able to control the lift, thrust and servo via bluetooth from my ...
0
votes
1answer
29 views

what is the digital communication format that the bluetooth module communicates with

I am using ATtiny2313 microcontroller along with a bluetooth module(HC-05) to communicate with my laptop. Heres my doubt, How does the bluetooth module communicate with the laptop. i.e. what is the ...
1
vote
1answer
25 views

Is it possible to use bluetooth module hc-06 in Master mode

These are two popular modules available in market- HC05 and HC06 I bought two HC-06 modules and trying to establish communication between them. But I failed and a friend of mine said it can be ...
0
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0answers
11 views

looking for a transmitter A2DP bluetooth module [closed]

Currently found this: https://www.sparkfun.com/products/11678 that could be both a master and a slave. But it seems like an overkill and a bit pricy for me. There are many under 10$ receiver modules ...
0
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0answers
21 views

Bluetooth audio transmission

I am trying a project where I would play music from my tv(doesn't have bluetooth) to the commercial Bluetooth headphones. I have read this post. I already have HC 05 Bluetooth module and want to use ...
-3
votes
2answers
32 views

How could I power flexible oled screens with wearable power source and could I transmit data onto it with bluetooth via app [closed]

How could I power flexible oled screens with solar power and could I transmit data onto it with bluetooth via app? Would this be possible? please can you help thank you
0
votes
1answer
9 views

avr python serial communication all data \xff

I have an ATtiny AVR imicrocontroller connected to HC-05 bluetooth module via USART(TX and RX) of the microcontroller. The microcontroller is sending constant data (for right now) to the bluetooth ...
0
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1answer
27 views

How to create a bluetooth module that is both a master and slave?

I'm working on a project that involves having a bluetooth module be a master and slave. I am a dummy when it comes to these things. Basically i need one device like an iPhone to be able to ...
0
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0answers
39 views

Bluesmirf sparkfly bluetooth HID Radio [closed]

So currently I have purchased this Bluetooth HID radio, product number: RB-Spa-608 I am trying to connect this Bluetooth radio to digital pins of my Arduino Mega to set the baud rate to 56700 so it ...
0
votes
1answer
56 views

problem of transmitting data from serial device to bluetooth on Arduino

I am using an accelerometer which uses serial communication on Arduino (UART), I wish to transmit the data to a bluetooth module (blusmirf gold) using I2C and finally read it from my android ...
0
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0answers
18 views

What is the lowest sample rate for an ADC to sample Bluetooth IQ data?

I need a little more background to answer properly to this question, but maybe someone here could help me with this. So briefly: if I receive data from a bluetooth IQ demodulator, what should be the ...
0
votes
2answers
43 views

What is the easiest way to send data via bluetooth?

I want to send a serial data which comes as RS232 format from an instrument. Data will be sent by using bluetooth to a mobile phone. So I need to convert this RS232 data to wireless bluetooth in some ...
0
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0answers
29 views

Is it possible to increase the range of the iPhone's bluetooth signal?

From what I understand, the iPhone has a class 2 bluetooth module which has a range of 10m. Is it possible to increase this range without meddling with the iPhone's hardware (e.g. without re-soldering ...
0
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0answers
12 views

USB-like connection by bluetooth

I would like to ask if it is possible to plug in a bluetooth adapter into the portable drive instead of USB cable to wirelessly explore the data? I just want to make a USB-like connection wirelessly. ...
1
vote
1answer
49 views

HC-06 (BT module) becomes un-responsive after ~20 minutes

I am seeing the following behavior on a HT-06 BT module (http://www.amazon.com/gp/product/B009DZQ4MG/ref=od_aui_detailpages00?ie=UTF8&psc=1) wired to an Arduino Uno. The module works great for ...
0
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0answers
22 views

Establishment of a2dp bluetooth connection

I have a problem with establishment A2DP sink Bluetooth connection. I have Allwinner A13 development board and Realtek RTL8723AU Wifi-bluetooth module with installed Linux kernel 3.4.103, bluez 5.28, ...
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0answers
18 views

Connect/Pair two BCD210 Bluetooth modules

I'm trying to connect my two Parani-BCD210 bluetooth devices. I'm using them through a UART connection from a micro-controller(ATMEL AT89C5131 ). The problem is, I can connect my devices with my ...
0
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0answers
67 views

Baud rate from my serial port. Communication between my teensy 3.1 and bluetooth module

I'm facing a trouble about baudrate and I would like to deeply understand how baud is working. I know that baud is symbols per second, and from google search there is a lot of explanations. What I ...
0
votes
1answer
30 views

Can one communicate with smartphones only in a directional cone?

I'm thinking about a device that can communicate with a phone. Think of it as simply something that will tell an app "1" if it communicates with it, otherwise the app will remain "0." But what I want ...
1
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0answers
20 views

HF RFID 13.56MHz Interference from WiFi/BLE 2.45GHz?

If a Wifi/BLE antenna were placed within a multicoil loop antenna for 13.56MHz HF RFID, would there be significant crosstalk/interference?
0
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0answers
16 views

Sound alarm with Smart Bluetooth

I'm working on a project where my iPhone locates a specific item and triggers a sound alarm when needed. I did my research and found out that this can be done using Smart Bluetooth technology. ...
1
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3answers
203 views

Bluetooth frequency-hopping advantages

i'm learning now the about Bluetooth (and BLE) and feel I need some explanation what the advantages of using frequency-hopping method. Can anyone please explain me in simple words (with examples, ...
0
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0answers
16 views

wifi direct vs bluetooth : internet access

I'm doing a comparison between wifi direct and bluetooth in connecting a smartphone to a device. I've read many articles about pro and cons of one despite the other, but I haven't seen one (maybe) ...
0
votes
1answer
50 views

Best MCU platform with over-the-air firmware flashing capability? [closed]

I know spark.io is well known for this feature, but I'm searching for alternatives that offer hassle-free over-the-air firmware patching and has also some open implementation examples available. ...
0
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0answers
72 views

ATmega328p hc-06 writing correctly but reading gibrish

Last week i have been strugling with getting the hc-06 bluetooth module working on my ATmega328p. Whatever the ATmega sends to the bluetooth module comes correctly on my phone. But everything i write ...
0
votes
2answers
99 views

What technique can I use to focus a Bluetooth 4 transmission (or at least shield it)?

I'm actually trying to focus an iBeacon that uses Bluetooth 4.0 LE. These transmit in the ISM band from 2.4 to 2.485 GHz. Normally these things radiate in a spherical, or half spherical pattern, but ...
0
votes
1answer
54 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
votes
1answer
105 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
votes
1answer
69 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
votes
1answer
46 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
73 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 ...
-1
votes
1answer
44 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
votes
2answers
53 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
62 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
votes
1answer
70 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
votes
0answers
97 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
vote
1answer
59 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
51 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
79 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 ...
0
votes
2answers
61 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?
1
vote
2answers
232 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
95 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
vote
1answer
250 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
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0answers
132 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 ...