Bluetooth Definition and 67 Threads

Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances using UHF radio waves in the ISM bands, from 2.402 GHz to 2.48 GHz, and building personal area networks (PANs). It was originally conceived as a wireless alternative to RS-232 data cables. It is mainly used as an alternative to wire connections, to exchange files between nearby portable devices and connect cell phones and music players with wireless headphones. In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to 10 meters (30 feet).
Bluetooth is managed by the Bluetooth Special Interest Group (SIG), which has more than 35,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics. The IEEE standardized Bluetooth as IEEE 802.15.1, but no longer maintains the standard. The Bluetooth SIG oversees development of the specification, manages the qualification program, and protects the trademarks. A manufacturer must meet Bluetooth SIG standards to market it as a Bluetooth device. A network of patents apply to the technology, which are licensed to individual qualifying devices. As of 2009, Bluetooth integrated circuit chips ship approximately 920 million units annually.

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  1. N

    How Do Wi-Fi and Bluetooth Devices Transmit Digital Data?

    Wi-Fi Wavelength?? First of all,, HI, everybody, I am Sonics from India I was searching on Wi-Fi modems and how other bluetooth enabled or wireless things work. I know that they catch some frequency and then convert it to something that is been sent on that wavelength but I don't know that how...
  2. H

    Heart rate and touch-sensitive sensor help?

    Question Details Ok, so want to get a heart rate sensor, take it apart, and adapt it to make it bluetooth enabled so i can see the heart rate on a phone/computer. Where should I start? What hardware and software should I use? I'm really a beginner and have no idea where to start lol. Also, I...
  3. cronxeh

    Stargazing Need advice on telescope for astrophotography

    So I am finally getting out in the wilderness on vacation and I thought it would be a great idea to do some astrophotography. I thought of getting a simple enough Nextstar 4SE, but I have a bigger budget and maybe I can get a bigger diameter and aperture. So my question is, which telescope...
  4. D

    Challenge Connecting Multiple Smartphone Mic's Simply & Quickly

    Dear Readers, I'm facing a pretty interesting challenge, which is: "How to connect multiple smartphone mic's in the quickest and simplest way?" Here is a use case. I go into a meeting with a group of random (strangers) that all have smartphones, Android, iOS, Windows. Now I want to record this...
  5. A

    Wifi n bluetooth technology how?

    wifi n bluetooth technology how?? how can the bluetooth n wi-fi rays or waves can travel even through the walls ...i mean what might be the properties
  6. J

    What are some recommended transceiver models for Bluetooth tracking devices?

    Hi, I'm looking to design and build two circuits for devices that will alert the two holders of the devices when they come within 1m of each other (I only need 1m range for demonstrations of the devices – in practice, the range will be more like 100m). Now I'm pretty sure Bluetooth...
  7. O

    Can DC Injection Power Bluetooth Devices?

    What is the lowest power bluetooth possible? Thanks
  8. W

    Bluetooth for Can Size Satellite Transmissions

    Bluetooth can use?? Hi!I am planning to make a can size satellite.Normally we use FM(radio frequency) to transmit data from satellite to ground station.But can i use Bluetooth to replace FM?I know that Bluetooth is short-range frequency so any idea to solve this problem?Thanks!
  9. F

    Bluetooth Receiver: Class 1 vs Class 2 for Senior Project

    I'm not sure whether to use this: Class 1 http://www.kanda.com/products/Sena/PARANI-ESD1000.html or Class 2 http://www.kanda.com/products/Sena/PARANI-ESD200.html I'm planning to use it in an elevator for a senior project and I would like some suggestions or advice on which to...
  10. K

    Bluetooth Remote to control phone functions

    I want to to make a remote control for my phone. I want to control certain functions without touching my phone. How difficult will it be to accomplish this. I don't have a lot of bluetooth knowledge except that it works with high frequency waves but to really get to the root of it, is it an...
  11. H

    Can You Control Your Appliances with Just a Bluetooth-Enabled Cell Phone?

    Is it possible to remote control electric appliances directly using a bluetooth enabled cell phone (without PC and laptops as intermediate)?
  12. A

    Does Carrying a Cellphone on a Waist Belt Reduce Microwave Radiation to the Brain?

    Dear All, Please excuse my ignorance of physics. According to some Russian research 1 mW of microwave radiation could be considered safe for the brain (ie. it won't cause brain damage). I therefore considered that if a 1 W cellphone is damaging to the brain then perhaps it's a good idea to use...
  13. F

    Bluetooth Questions - Buy & Decode Devices

    Hi all... Two quick questions... 1. Does anyone know where I would look if I wanted to buy a device that can generate a bluetooth signal? 2. Does anyone know of a device that can capture and decode bluetooth for digital analysis? Any replies would be appreciated... Thanks...
  14. Pengwuino

    Is Bluetooth the Future of PC Applications?

    I've always thought the concept of bluetooth was awesome for PC's. I have a bluetooth keyboard and bluetooth mouse and they are great. Why hasn't Bluetooth technology taken off for PC applications? I've seen like, 2 printers that are bluetooth compatible and one got taken off of newegg and the...
  15. J

    Programming Nokia 6230 for Bluetooth Commands

    who knows what about it? i need to write a program for my nokia cell-phone (6230) to send commands via bluetooth to a receiver. anyone got any references/help/knowledge/url/.pdf/other forums to share? thanks :)
  16. Shahil

    Remote controlled car - Bluetooth Controlled

    Hi guys... Just saw the Paintball gun thread...gave me an idea of updating my old toys... I want to make a simple remote Bluetooth controlled car controlled by my cellphone. Basically, it's like your old IR controlled toy cars but instead of using IR, I intend using a Bluetooth connection...
  17. D

    Learn Hacking Bluetooth This Summer

    I saw this and I thought that just learning about bluetooth and how to mess with it would be really fun this summer. maybe its just the sniper rifle, but it made learning about bluetooth sound really fun :biggrin: Anyway, I was wondering if anyone could point me in the right direction to...
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