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Old 10-26-12, 12:50 PM   #1
pepsi4all
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BLUE TOOTH TECHNOLOGY for powertap, heart rate, cadence and others...and not ANT

Why don't they make blue tooth connection in the cellphones for our sensors in our bikes?

Cellphones nowadays are very powerful computers that can easily outdo any electronic gadgets for cycling.

I am surprised why they have not incorporated blue tooth technology to connect to these devices.

The only think I can think of is the battery usage. However battery is not a problem, we have external battery charger/case or larger pack battery for cellphones. Recharging a cellphone is very easy, you can even charge it in the car. I just don't know why they don't use bluetooth.

Wouldn't be a good marketing strategy... all you carry is one cellphone? use cadence, heart rate and etc.
You can even listen to music such as pandora, slacker, amazon icloud or your workout music files. If you get lost you can even use navigation. Answering phone will be easy, since you only have one gadget. And... Strava is directly connected to cellphones.

Imagine all the apps can be created to import your stats, to compare and evaluate to increase speed.


So why not bluetooth?

Is there any such technologies out there such as bluetooth besides wahoo(since wahoo is not a bluetooth)?

Can you guys think of anything that maybe stopping company to produce this?


Imagine, using cellphones as our primary computer in our bike, an APP that tells you how far distance miles or km the breakaway groups are(this would be made possible when an app like strava will pinpoint the locations of the riders). In addition, imagine an APP will calculate how much cadence or wattage you need to produce in a time to catch up with them before finish line, and readjust itself if the breakaway group slows down or go faster.

The possibilities of BLUE TOOTH/Cellphone technology.

There are cellphones out there that has a quadcore processors, faster than many computers.

What do you guys think? You think this is would work? or is it a sucky idea?
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Old 10-26-12, 01:15 PM   #2
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they? get on it !

the "You guys should" committee is very busy right now..
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Old 10-26-12, 01:31 PM   #3
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Cadence, pedal faster. Heart rate, if you see spots, pedal slower. Don't be a stravatard. None of this interests me. Mountain bikes never get lost, we are "exploring"
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Old 10-26-12, 01:46 PM   #4
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Chiefly, it's because Bluetooth was specifically designed for audio bandwidth, not data. ANT+ uses much less power than Bluetooth, although subsequent iterations of Bluetooth have lowered the power consumption to the point that it's less of an issue. That said, if you've ever used a Bluetooth headset for long periods of time, think about how quickly it runs out of juice. Now, remember that it's not uncommon at all to go out on rides that last 2-3 hours.

Some people do use cell phones as the primary computers on their bike, as there are a number of iPhone apps designed to use with exercise in mind, but it's mostly running. You don't get heart rate and cadence information with that, though.
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Old 10-26-12, 02:52 PM   #5
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I maybe wrong, but I think once they incorporate bluetooth tech. everything will follow and can integrate. It will be synergize.

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Originally Posted by cafzali View Post
Chiefly, it's because Bluetooth was specifically designed for audio bandwidth, not data.

I thought bluetooth technology allows not only audio files but files it self. You can play video games via bluetooth and send different files. I use bluetooth to export and import my data files from phone to laptop.

I just google bluetooth roadbike, I think this company Kinetic is gonna produce it.

http://road.cc/content/news/63338-ki...rt-power-meter

I just want powermeter in it.

Maybe we ask cyclops to do it.

If I was rich, I will invest on this innovation.

Last edited by pepsi4all; 10-26-12 at 02:56 PM.
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Old 10-26-12, 04:21 PM   #6
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Originally Posted by pepsi4all View Post
Why don't they make blue tooth connection in the cellphones for our sensors in our bikes?
"They" do!

The technology is part of BT 4 (which is fairly new itself). It's BT "LE" (low energy).

The iPhone 4 + (as well as some other newer phones) supports it. And Wahoo Fitness has a speed/cadence sensor as well as a heart monitor (Polar also has a heart monitor).

This website is a good place for info about that sort of stuff:

http://www.dcrainmaker.com/
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Old 10-26-12, 08:03 PM   #7
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Yep, I ordered both two days ago and they should be here tomorrow. I hope to be able to use the setup on the home trainer as well. Hopefully the indoor ride will still be recorded in either Strava or Roadbike so I can keep track of things over the winter. What I'm really interested in finding some way to interface the output from the BT sensors to video in the iphone which in turn displays it via AppleTv to my TV...
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Old 10-27-12, 02:25 PM   #8
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Yep, I ordered both two days ago and they should be here tomorrow. I hope to be able to use the setup on the home trainer as well.
Waldick, let me know if this is anygood....
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Old 10-29-12, 07:09 AM   #9
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Install was very easy, although the alignment of both sensors has to be done right per instructions. At first I did not have the speed sensor close enough to the magnet that is attached to the spokes, but when I re-aligned the pickup it worked fine. One thing that I have found is that when the bluetooth is used, the speed function of the GPS is overridden. What I hope this means is that I am able to log trainer rides on Strava and Roadbike.

I also bought the BT heart rate sensor and that integrates well with the other sensors. Once I set up inside I'll update....
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Old 11-01-12, 09:57 PM   #10
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ok, so Strava and Roadbike won't register mileage via the speed sensor. So for indoor use they are not useful, but the Wahoo fitness app, which is free works just fine inside.
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Old 11-05-12, 01:31 PM   #11
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Last I heard Strava for Android also didn't support bluetooth sensors, still waiting for that.
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