A low-power short-range wireless protocol.
1
vote
0answers
44 views
Cheapest communication solution including wifi bluetooth and ethernet
A few friends and I are underway designing a senior project. We are looking for ways to make our product cheaper, and of course it comes to our most expensive ic components. We haven't gotten very far ...
1
vote
0answers
27 views
Bluetooth Module for RFCOMM Channel
I need to find a Bluetooth 2.1 + EDR module that will allow a uC to communicate directly over an RFCOMM channel once it has been established.
The problem is I can only find modules which implement ...
1
vote
1answer
49 views
Can the BlueSmirf Gold bluetooth module communicate logical HIGH/LOW instead of serial?
I am wondering if the BlueSmirf Gold can set HIGH/LOW commands instead of serial communication?
I am writing a small andorid app to control something via the BlueSmirf. I know how to establish serial ...
-2
votes
0answers
36 views
Bluetooth Device [closed]
I am trying to build a bluetooth device which connects to mobiles and stuff, went through some evaluation kits but couldn't differentiate which ones do what, size is not really an issue as of now, can ...
-2
votes
0answers
29 views
Help to select Bluetooth module [closed]
I want to build a device for phones using bluetooth chip.
Help me please to chose it as I am novice to this topic.
1 Will be good it if it has all in one solution BT + programmable processor (main ...
0
votes
0answers
50 views
Create own bluetooth device: do I need a micro? + others
I'm in the design stages of a bluetooth device I want to create but I have a few questions. I'm a BIT(literally 1 bit, 01) familiar with electronics, I can program though so keep that in mind.
My ...
0
votes
0answers
30 views
Bluetooth to Zigbee
Is it possible to create a bluetooth "extender" by connecting the TX and RX line of a bluetooth module to the RX and TX lines of a Zigbee?
2
votes
2answers
79 views
Synchronize Arduino times to a 20ms difference
I'm working on a school project where I need to synchronize the clock on two Arduinos to almost perfect timing. I liked the idea of using Bluetooth but it has certain drifts/delays in timing. I was ...
-2
votes
0answers
29 views
How can i feed input to a PLC from a bluetooth reciever? [closed]
I need to control a PLC from my PC using bluetooth. I have a bluetooth transmitter on the PC which transmit signals to the reciever which is at some distance. How do i connect the reciever to the PLC?
...
-4
votes
0answers
24 views
implementing bluetooth with cc2500 and atmega8 [closed]
I am thinking to use CC2500 as PHY and link layer of the Bluetooth protostack and implement the other layers on the atmega8 controller.
I only want to send file to i think to implement only those ...
-3
votes
0answers
37 views
What consumer devices should I consider for using as bluetooth beacons? [closed]
I'm experimenting with an indoor location system and I was thinking, how can I get a reliable bluetooth beacon that's cheap and small? In terms of buying, I only found this:
https://www.todhq.com
...
1
vote
0answers
76 views
How to scan for all available beacons with BLE?
I'm working with a project which involves Bluetooth Low Energy beacons. Super simple schematic will just broadcast an unique number of the beacon. These beacons are used in a warehouse which is about ...
-2
votes
1answer
48 views
Bluetooth and serial connection [closed]
I was told a Bluetooth connection is a kind of serial connection.
Actually this is not clear to me. Could you please explain it to me?
I refer to the protocol level.
1
vote
4answers
73 views
microcontroller bluetooth
What is good / proven / low-cost bluetooth module, preferably with open source driver software, for getting data back and forth between my microcontroller and smartphone (either Android or iPhone)? ...
0
votes
1answer
49 views
Getting a Bluetooth chip to communicate with Android Smartphone
I wish to develop an Android application for my phone (nexus 4) which needs to get the device to communicate with a Bluetooth chip/receiver and back at regular intervals. When I say 'chip' I mean any ...
-1
votes
0answers
76 views
How to insert a stereo input headphone jack from a 3 watt speaker wiring [closed]
I have here a Bluetooth speaker device that has a 3 watt audio output. Now i was hoping to be able to bypass it's speaker connection by inserting a 3.5mm input socket between. Now my question is which ...
0
votes
0answers
61 views
How to upload sketch of Arduino “Leonardo” from PC through Bluetooth?
I try to upload my sketch from PC (Dell Inspiron.1525, XP pack 3) to Arduino Leonardo by the Bluetooth but it is not work, I try all ways that found in Internet which most of them about Arduino Uno, ...
0
votes
1answer
43 views
Interfacing TinyAVR with bluetooth and passing message
I'm looking into interfacing the TinyAVR micro controller (not sure which one will work yet) with a Bluetooth module either the CC2540 or the nRF8001. I want to have the TinyAVR micro controller use ...
1
vote
0answers
65 views
Connecting 2 Arduinos with Bluetooth
I have been looking on Google for a project that involves 2 Arduinos communicating with Bluetooth. The only examples I can find are with an Arduino to an Android phone.
Does anyone have links to let ...
2
votes
0answers
60 views
Bluetooth HID Module
I am trying to implement my own Bluetooth HID device (a kind of custom game controller), but am having trouble finding what I am looking for.
I have only come across two solutions which seem slightly ...
1
vote
0answers
52 views
IOIO-OTG, PIR sensor and Bluetooth Interference
I have built a sensor motion device that is battery operated and sits in a small box. Its purpose to detect wildlife movement. The setup is as follows:
IOIO-OTG connected to a PIR ...
0
votes
1answer
70 views
Picking a bluetooth module
I've recently acquired a lpc1313fbd48 microcontroller and I was looking around on newark.com for a bluetooth module that I could use to connect my microcontroller with my phone. I then began to if ...
2
votes
2answers
171 views
Building a wireless keyboard (preferably with a kit)
This is the project that spawned these earlier questions.
I'd like to create my own keyboard. Functionally it's going to be a keyboard, but visually it's going to bear more semblance to a joystick ...
2
votes
2answers
107 views
How to connect sensors to an Android device?
I need to build a device, which measures several parameters (body temperature, conductivity and pulse) and transmits them to an Android mobile device.
The system has following parts:
The sensors
...
0
votes
2answers
64 views
Make two bluetooth modules communicate directly?
Can one buy two cheap (and identical) bluetooth chips and make them talk to each other without needing a PC or a mobile phone?
I'm guessing the answer is a basic 'NO', but I might as well ask.
...
1
vote
0answers
93 views
Most compatible Bluetooth modem to use with Arduino Uno R3?
I'm looking for a Bluetooth modem that can be connected with the Arduino Uno R3, and communicate with Android mobile device. I found one modem (the BlueSMiRF RP-SMA) but it was to expensive, and it ...
1
vote
1answer
37 views
Using two bluetooth profiles at the same time to make a wireless keyboard
I'm trying to build a wireless, two part keyboard using bluetooth and arduino. Imagine a normal wireless keyboard but split it in two with the numeric keys on the right placed on a separate unit. Then ...
0
votes
1answer
133 views
Can the Signal from a Coaxial Cable be Transmitted via Bluetooth?
If so, can the coaxial signal be maintained without degradation (think inserting a transmitter in the middle of a coaxial connection to relay that signal wirelessly without actually interrupting the ...
1
vote
1answer
103 views
USB interface to bluetooth interface for digital scale
I've got a situation where I need to communicate wirelessly between a bluetooth-enabled Android device and a digital scale which can be accessed digitally via USB.
While normally I would be happy to ...
2
votes
1answer
85 views
Do I need a RTOS?
My hardware would have a DSP with the following characteristics:
Sound generation (internal parameter will generate pure tones, white noise, filtered white noise or the sum of them).
I2C ...
3
votes
1answer
240 views
HC-05 Bluetooth module not recognized by mobile phone
Its a bit weird whats its happening with the bluetooth module. Aparently it works perfectly, it gets recognized bt my desktop computer and my laptop, but never gets listed on my mobile phone.
I've ...
10
votes
1answer
274 views
Do different frequencies have different capabilities?
I read that google was planning on purchasing a spectrum from the Fcc and they were going to use it to transfer data. I was wondering if the value of the frequency affects the data that is being ...
3
votes
1answer
77 views
Combination of Zigbee and Bluetooth 4.0
Is there any product with a combination of both Zigbee and Bluetooth 4.0 protocols? If not is it possible to design a module with such combination?
5
votes
2answers
255 views
How to connect RFduino to internet?
I backed the RFduino project on Kickstarter to use it in my next project. It is basically a tiny Arduino compatible board with built in Bluetooth LE that supports additional shields.
I've also got a ...
5
votes
3answers
59 views
How can I create a serial bridge using two Bluetooth dongles?
I own two of the SparkFun BlueSmirf bluetooth modules and I would like to connect them to eachother - one as the master, and one as the slave. It is easy to pair these together using a PC with Putty ...
2
votes
1answer
86 views
Bluetooth bee and different profiles
We got a bluetooth bee for testing purpose on hardware. Unfortunately the device only seems to run SPP. But it seems possible to do more than that.
Here's the product:
...
-3
votes
1answer
193 views
Bluetooth modules differences Android [closed]
i am not really well informed about the different types of Bluetooth modules, so i wanted to ask u what is the difference between these :
...
3
votes
3answers
244 views
RF Design: A Bluetooth Repeater
I am currently stumped in the design process in creating a method to intercept Bluetooth signals with an antenna and simply outputting the exact signal through another antenna.
Some Background
I ...
1
vote
0answers
125 views
Pros and cons of Blueradios BR-LE4.0-S3A or Panasonic PAN1721 [closed]
Quite new to BLE and modules and development, but I am trying to research so I can take the info to a development company to get them to create a small custom device with a sensor.
However I am torn ...
0
votes
1answer
123 views
Monitoring distance between two moving objects
For a new product, I'd like some help in understanding what technology would be best for creating a wireless connection between two moving devices and having them constantly monitor the distance ...
1
vote
0answers
88 views
Why does my bluetooth dongle use more current when paired then when idle?
I have a bluetooth dongle which is connected through USB to my PC. I wanted to measure the current drawn and hence I connected an ammeter in series with the 5V line and am measuring the current. I ...
2
votes
2answers
128 views
How to build a switch with Bluetooth?
I have a small circuit with a battery and a lamp. If I close the circuit the lamp will turn on, otherwise will turn off.
I want to create a very small wireless switch. It will have only 2 signals ...
1
vote
1answer
159 views
Pairing to a module containing multiple Bluetooth units
I’m working on a project where a module is suppose to stream an audio signal to multiple receivers via Bluetooth. To be able to connect more than 7 units to this device, I thought of using three ...
2
votes
1answer
466 views
Broadcast audio to multiple receivers via Bluetooth
I want to be able to connect multiple Bluetooth devices to a Bluetooth transmitter, and then stream audio from a portable MP3 player, via Bluetooth, to all of the connected Bluetooth receivers. Is ...
2
votes
3answers
503 views
Arduino and Bluetooth USB dongle
Is it possible to use a mini USB Bluetooth dongle like in the following picture in order to improve my Arduino Uno, so it can comunicate with other Bluetooth devices?
If it is, how can I do that?
1
vote
1answer
89 views
Connects To The Device That's The Closest
I need some expert advice or ideas.
Please note I'm not a student nor practitioner of Electrical Engineering.
I'm working on a product idea where a device will automatically connect to another ...
2
votes
1answer
155 views
Bluetooth low energy Power Consumption in Sleep state
I constantly read about the low power consumption of BLE and websites stating
Power consumption:
Since a Bluetooth low energy device is in sleep mode most of the time - the maximum/peak power ...
-5
votes
1answer
124 views
Creating Simple Bluetooth Device [closed]
I want to create a small bluetooth device, something that can be carried on a key chain, pendant that sort of thing, connect to a mobile device, and interface with an app that I will develop. The ...
1
vote
0answers
97 views
Advice regarding bluetooth microcontrollers
I am doing some research into a potential electronics project I would like to try out. What it involves is having a collection of small remote devices that communicate with a larger central device. ...
0
votes
1answer
159 views
Connecting an environmental sensor to multiple smart phones [closed]
Newbie heading for the deep end here, I am working on a project where a number of students will use smart phones to connect via bluetooth to sensors placed around a woodland. It has occurred to me ...
