A low-power short-range wireless protocol.

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-1
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0answers
28 views

Wireless voting system project

I'm about design and write code for project, which task would be gathering and processing data in wireless voting system. My idea in this moment is something like this: Server - Raspberry Pi with ...
0
votes
1answer
35 views

After research, how should I go about creating a bluetooth peripheral?

My goal is to create a very simple (1 input, 1 output, both high / low states) bluetooth peripheral to be worn on the wrist to connect to an android phone running Lollipop. I have the following ...
1
vote
0answers
23 views

Serial AT commands with Bluetooth CSR8645 module

I bought a Csr8645 (bleutooth audio module). The module connect to my phone out of the box... It should support some AT commands. So I have tried some but I don't get anything in response. The only I ...
-3
votes
0answers
20 views

How can I make the Bluetooth work for Android and IOS systems? [on hold]

I'm working on a project with Arduino,and I'm connecting it with the smartphone through the Bluetooth,so what kind of Bluetooth should I use to make it pair with both Android and iphone devices ? or ...
0
votes
0answers
13 views

Connecting a USB device as a Bluetooth slave

I'm trying to connect my Android phone to a USB gamepad via Bluetooth. I'd need a Bluetooth slave with a USB female port. I've done some searching and some asking, but I can't find any devices that do ...
0
votes
0answers
20 views

Should the output of a USB-UART module linked to a bluetooth module the same than just the USB-UART module just wired?

I have a device controled by a UART protocol just conected to my PC. I wanted to make it wireless, so I tried to create this conexion scheme PC -> USB-UART -> Bluetooth module -> Bluetooth module ...
-4
votes
1answer
32 views

Battery Cell Properties [closed]

I have a pair of Bluetooth headphones with a 3.7v, 180mA battery cell. I am wondering if it would be possible to increase the battery cell by replacing it with maybe a 5v or 9v. However I don't want ...
0
votes
0answers
11 views

BLE mini read not working

I recently brought a ble mini and configured it correctly updated my firmware. I am using asus zenfone 5 and android version 4.4.2. I am trying to use the simple chat program. I am able to send data ...
0
votes
1answer
48 views

Can a Bluetooth wireless connection bridge a USB Host and USB device?

Now that Bluetooth modules are dirt cheap, I'm wondering if I could make a pair of wirelessly connected objects that would act as a "virtual USB cable". One would have a pig tail with a USB Male plug ...
0
votes
1answer
20 views

Use of RFID or suitable alternative to remotely communicate change in system state

I have a physical system which is dispersed over about 20-30 metres cubed and at random points within this space there are electronic nodes which have single binary outputs. I want to monitor every ...
-3
votes
2answers
54 views

Connecting to Wifi over Bluetooth for embedded systems

I know that these two (Wifi and Bluetooth) are in the same range of frequency (2.4 ghz. At least mine ones are this way). I do not think wifi modules for embedded systems (I use AVR) are cost ...
0
votes
0answers
20 views

multiple bluetooth on same board

I am designing a board with 2 bluetooth modules. Will this raise issues for EMI certifications and such. Since, there are 2 bluetooth chips on the same board. Will there be a collision and such with 2 ...
1
vote
0answers
15 views

Arduino Bluetooth and Ultrasonic Distance Sensor (HC-SR04): printing values over BT gives error [migrated]

I'm trying to send the reading distance of an HC-SR04 sensor to an Android app, using Bluetooth. I succesfully managed to send values from many other sensor to the app, but when it comes to sending ...
1
vote
0answers
17 views

Is there a way to simulate HC-06 bluetooth module communication with android device, if I don't have the module? [migrated]

I would like to make an android application which would be able to communicate, through HC-06 bluetooth module, with PIC MCU. I haven't got the BT modules yet and I would like to prepare the android ...
-3
votes
0answers
18 views

I need to know what type of bluetooth chip can connect to mono headsets [duplicate]

I'm looking to build something to simply have: LED, Button, Vol +/-, Mute (would be nice), audio OUT (from mono headset -> BT device -> port), and audio IN (from port -> BT device -> mono headset ...
0
votes
1answer
44 views

Arduino mini bluetooth module communicating with an Android device without using an app?

Is there a way to communicate between arduino device and the android device through the bluetooth? I know it is and for that is used some pfodApp, but what if I ...
1
vote
1answer
32 views

Adding bluetooth input to old stereo

I am adding a bluetooth receiver to an old suitcase style record player / am radio. I have a bluetooth receiver which runs of 5v (usb normally). I have connected this to the volume pot, through the ...
1
vote
1answer
62 views

Is CE marking on module necessary?

Suppose a RF module has passed CE EMC tests. Must the CE marking be printed on the module itself in order for the approval to be valid if it is to be used in an end product?
0
votes
1answer
54 views

Quectel m66 bluetooth usage?

I've been working on m66 and got it connected to PC via usb to serial converter, and got it up and running. AT command replies with ...
0
votes
0answers
22 views

How is proximity unlocking by BlueTooth actually done?

Examples for proximity unlocking (i.e., no buttons need to be pressed) are: Kevo Tesla Keyfob How is this actually done, talking BlueTooth details? My research so far suggests the following: ...
4
votes
1answer
80 views

How to ensure a RF module is indeed FCC compliant as advertised?

Suppose a buyer buys RF modules from China and wants to ascertain that they're indeed FCC compliant as advertised. I'm guessing that this should be a fairly common issue since Chinese ...
-1
votes
1answer
61 views

Which is the better way to send a broadcast signal to a great number of smarthphones in the same place? [closed]

I wonder which could be the better way to send a broadcast signal to a great number of smartphones in the same place at the same time? I'm thinking about 10.000 to 50.000 smartphones in an area of ...
0
votes
0answers
64 views

What happens if a FCC certified module isn't what it claims to be?

Suppose a radio module is already certified by the FCC but the manufacturer decides to ship inferior versions of it without acknowledging that fact, making users oblivious to the change. Do commercial ...
3
votes
1answer
115 views

Must FCC-certified modules be labelled with the correct FCC ID?

The manufacturer of this radio module I bought claims that it's FCC certified, but there's no FCC ID on it (though there is the FCC logo). If the final product is to be FCC tested, would it then be ...
1
vote
0answers
50 views

Can I use PIR + HC-06 Bluetooth Module without arduino to send events to Android?

I want a PIR sensor to send a "something moved" event to Android. Can I use a simple PIR + Bluetooth module to send such an event? I was thinking that I could connect the PIR output (which goes 5V ...
1
vote
1answer
33 views

What are the considerations for choosing Bluetooth baudrate?

I have an Arduino UNO which will be using an HC-05 bluetooth module to connect to a program running on PC. Its baud rate can be configured from as low as 4800 to as high as 1382400. I know that there ...
0
votes
0answers
17 views

How to stream audio over bluetooth to a device, use a bluetooth modeule with AVR atmega32?

I am trying to finish off a project I am working on that consists of an AVR atmega32 MCU and an on-board op-amp for audio amplification. Currently the device uses a hard wired connection for an audio ...
1
vote
1answer
77 views

Using ATtiny 45/85 with HC-05 (Not arduino)

I am working on a project that requires me to use an ATtiny microcontroller with bluetooth module HC-05. I have used the module with Atmega 8 in the past using UART protocol. Can anyone help me in ...
0
votes
1answer
45 views

Bluetooth Modules in a plastic enclosure

I would like to implement a bluetooth functionality in my project, preferably using STMicroelectronics SPBT2632C1A.AT2, with a protective enclosure. But I read from multiple sources that bluetooth ...
0
votes
1answer
37 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
1
vote
2answers
47 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 ...
0
votes
2answers
74 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
33 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
120 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
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0answers
69 views

Interfacing hc-05 bluetooth module with AT89s52

I am trying to interface HC-05 module with AT89S52 microcontroller for my college project. I have written a send routine in assembly to send data at serial pin TX with 9600 baud rate as follows: ...
0
votes
1answer
44 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
61 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
37 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
35 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
36 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
votes
1answer
36 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
votes
1answer
105 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
votes
0answers
42 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
59 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
votes
0answers
48 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
votes
0answers
15 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
73 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
votes
0answers
36 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, ...
0
votes
0answers
24 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
votes
0answers
128 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 ...