That is great work. When you give it a test run, tell us how it goes.

Does the holder depress the power button in any way?

Cheers,
Fred

Hey awesome to see something in the works already. I just bought a cheapo bike mount off ebay and I'm getting my new Fuji Touring bike on Monday, but of course I'm waiting to feel how well it holds the n900 before I commit to actually riding with it.

For the record, the $5 mount off ebay is as bad as expected. I wrapped it in rubber bands before i set off because I knew it was going to fail, the rubber bands acted like a seatbelt preventing it from hitting the ground but couldn't keep it mounted properly. As soon as I went over a few bumps it was all over and then in its second week of me trying to tie it down hard enough the mount just snapped. Thankfully the trusty old pocket is working just fine.

Hey guys! It's been a while between posts.
I am very keen on using my N900 as a fully operational bike computer, but the one thing missing is a proper Cadence feature. Obviously I use eCoach for my general rides, but the speed readings from GPS are not as accurate as from a proper speed & cadence sensor. Is there a way to build one or use Ant+ devices or even bluetooth to do this?
Some of you commented "what for". Well I am a professional road cyclist and I've gone through several bike computers except the top of the range Garmins, etc. I just cannot justify the costs of buying them when I have a perfectly good N900 phone that could do the job for less, and have more features! Even music on the go if I want!
Here is a bluetooth speed & cadence sensor I have in mind purchasing. It's now a question whether it would work with eCoach.
http://www.aurabuy.com/bluetooth-4-0...fkIaAkx98P8HAQ
Any ideas thoughts on a speed&cadence sensor link to the N900 would be appreciated.
Thanks

I use duck tape and straws in my spokes.
Seriously though...I use one of my older model n800's (I like the facing speakers ) on my mountain bike and racing bike...I am a bit leery of putting my only n900 on a bike...I tend to go off road ...so it gets a wee bit rough ...and i really don't want to trash it in a spill or collision with a bear or cougar or jackalope out here.
So yeah...if all I was doing was city or highway travel...I'd be pretty keen otherwise.
I'm saving my n900 for my gas-powered hoverboard (old lawn mower engine in 'er ...I have in pieces right now...my fault shoulda swung left instead of right) ...
I figure if I'm going to trash my n900...
I'll end up trashin' myself too...
sooo...might as well go out in (what was the name of that guy? that inventor?) in proper off-a-cliff Segway style.

That cadence sensor looks pretty cool but is BT-4.0, which it believe means that it will use the low power protocol. Unless someone comes along with a full technical description allowing the writing of an open source driver for out Bluetooth radio chip I dont see use getting bluetooth 4.0 for our N900s.
WHat I would like out of eCoach is a better graphed cardio monitoring rather than just helping me keep inside a range during a set workout.

What does that mean? Can eCoach work with a bluetooth cadence device or not? Ok maybe the one I mentioned is too new, but surely an older model would work? Has anyone tried what I am asking, or it seems I am the only "lycra lout" in here?

That means exactly what @biketool says, there is no support for BTLE in n900, and there will never be; it is lacking the necessary HW of the bluetooth transceiver. Hence, you are not ever going to be able to use any external equipment that uses BT4 low energy mode with your device.

You could get over this by using an external bluetooth module connected to your USB port running in host mode, though.
(probably that'd look pretty ugly wart on the side of your bicycle-mounted N900, unless you managed to use a spacier backcover on the device and hide the BT module under there...)

http://shop.sports-tracker.com/produ...d-cadence.html

zapotek, that looks pretty cool but without Bluetooth 4.0 low energy, which is pretty much impossible from the manufacturer at this point, maybe even at a hardware level even if we could get a full open source driver for our BT chip. Without the low power bluetooth this cadence sensor or any low rate data device will burn through batteries pretty fast with protocol back and forth comms compared to the small amount of data is actually being sent.
At least they make compatible bluetooth 2.0 HRMs.