A low-power short-range wireless protocol.

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34 views

Bluetooth LE without microcontroller, capable of sending one value? [on hold]

I've been looking into implementing extremely basic bluetooth functionality in a small piece of hardware. Ideally, I would like to do this without any sort of microcontroller. Upon connecting with a ...
1
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0answers
50 views

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

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
37 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
59 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
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0answers
8 views

Stream audio from smartphone to arduino [migrated]

Is it possible to stream audio from smartphone to my arduino? And if yes, what does it require? Does it require programming from the smartphone side? I know programming on the arduino. I have even ...
0
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1answer
57 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
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0answers
7 views

Communication between Arduino and iOS device [migrated]

How can I get weight that has been measured by an Arduino device to show up on an iOS mobile or tablet device as a number? Thanks. Warmly, N.
0
votes
1answer
40 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
39 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
14 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
28 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
79 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
85 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
67 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
83 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
79 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
58 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
165 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 ...
25
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
200 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
67 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?
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2answers
116 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
86 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
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1answer
487 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
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0answers
58 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
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1answer
130 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
78 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
29 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
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0answers
75 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
66 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
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0answers
19 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
146 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
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0answers
89 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
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0answers
48 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
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0answers
99 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
85 views

Bluetooth keyboard?

Can the Bluetooth board "XS3868" be used for in a Bluetooth keyboard for a computer? Without using an Arduino
1
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3answers
59 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
248 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
102 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
74 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
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0answers
22 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
125 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
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0answers
40 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
76 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
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0answers
56 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
66 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
246 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
108 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
63 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 ...