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-   Nokia N810 (https://talk.maemo.org/forumdisplay.php?f=28)
-   -   the n810 as a bicycle computer (https://talk.maemo.org/showthread.php?t=18974)

smackpotato 2008-04-11 00:31

the n810 as a bicycle computer
 
what is the chance of someone smarter than me getting this working on the n810 with python. It seams to be a serial device with very limited commands
a returns meters traveled and time in milliseconds from the last 'a'
b i have no idea maybe nothing in the simulator
c returns time since last 'c' , meters, speed,acceleration.
se|xxx> sets the ratio in 1/hundreds of a revolution to the width of a
tennis court.
it would be useful to log speed against gps position. with a little imagination you could also get cadence and power.

Benson 2008-04-11 01:11

Re: the n810 as a bicycle computer
 
Any link regarding this device?

smackpotato 2008-04-11 01:57

Re: the n810 as a bicycle computer
 
oops it was in the copy/past buffer but i forgot to past http://soundofmotion.com/

dan 2008-04-11 02:24

Re: the n810 as a bicycle computer
 
I like. Can someone port this app and make a .deb please.

Benson 2008-04-11 02:46

Re: the n810 as a bicycle computer
 
Unless the source code is available (I didn't really look, but I doubt it), no one but the maker can port it. But if smackpotato is right re: the protocol, it can be cloned. It looks to be J2ME, and I'm not sure what all would be involved in getting it working, but unless you've got a rather strong and specific desire to have it running (without porting), reimplementing looks easier. (And if you wanted GPS integration, you have to reimplement so you have the source.)

I'd buy one and mess with it if it was $30, but $80 is too spendy for all the more I ride these days.

Good luck; as I don't know or like python, and don't have one, I won't be much use. Someone around has an app they use to record their motorcycle's speed, RPM, etc, and overlay with GPS; if you can find that, it might be a starting point.

smackpotato 2008-04-11 03:28

Re: the n810 as a bicycle computer
 
im going to get a bluetooth dongle and see if i can get something to work with the simulater first well im going to a lot of things. but i might think about it

kernelpanic 2008-04-11 12:33

Re: the n810 as a bicycle computer
 
Quote:

sets the ratio in 1/hundreds of a revolution to the width of a
tennis court.
Um What?

Love to see that in the setup.
Units->
------>Imperial(MPH)
------>Metric(KPH)
------>Tennis(TCPH)

cheers,
kernelpanic

p.s. A tennis court is 60 feet wide.

tabletrat 2008-04-11 13:28

Re: the n810 as a bicycle computer
 
Or, in approximately 132 linguines, or just over two double decker busses.

Standard weights

luciditydigital 2008-04-11 14:09

Re: the n810 as a bicycle computer
 
oh ya, i would love to get in on this. I love to bike, and have been wanting something akin to the whole Nike+ thing but for cycling.
I would jump on this if it could be made to work with our tablets..
-Ezra Hilyer - http://www.straypoetry.com

suitti 2008-04-11 14:25

Re: the n810 as a bicycle computer
 
My n800 doesn't have gps. Bluetooth for a bike computer is pretty cool. $80 for a bike computer is pretty high. But an app could log huge amounts of data, produce graphs and charts, and so on. I'd want a really, really, really good mount for my n800 for my bike, so i could see how fast i'm going while riding. The n800's screen isn't very readable in direct sunlight... and i wouldn't want to subject the unit to direct road vibration.

Or. One could use flite (text to speech) on the n800 to tell you while you ride. Then, keep the unit in some pocket, with a headphone. The n800 could be playing other audio, and the bike computer app could mix this in, perhaps just in one ear. It might just tell you your new speed when the speed changes or falls below some threshold. With audio in, you could give it voice commands to ask for specific things.

Benson 2008-04-11 15:03

Re: the n810 as a bicycle computer
 
Making noise: Good. Their Java stuff does that, but it plays back velotones (like ringtones, get it? :rolleyes:) at specific speeds. (Apparently it'd have done specific velocities, but they were too cheap to add GPS.) They lack text-to-speech, so they can't do reading off whatever speed you're at.

Making noise mixed with music, in only one channel: Dead simple, and already done. I use this when playing mp3s with the device in my pocket, to read the track title when skipping tracks. Check it out here.

Speech to text / voice commands: Looks possible, but not done yet. A better bet would be duct-taping a BT remote (plain HID remote would work, but wiimote might have some cool accelerometry application here) to the bars, and using that.

qole 2008-04-17 21:41

Re: the n810 as a bicycle computer
 
A bike computer basically just takes the input of a little switch that is closed every time a magnet on the spoke passes by the stationary thing on the fork. It seems to me that we just need a little hardware thing that reads the switch "clicks" when the wheel turns, and oh, yeah, a handlebar mount for the tablet. The handlebar mount would be cool for other reasons, too... Hmmm, now I'm going to look into that. Even for GPS and a bike-jukebox.

djs_tx 2008-04-17 21:57

Re: the n810 as a bicycle computer
 
Handlebar mount is pretty easy. I have my N800 mounted to the handlebars of my motorcycle with a RAM mount. One issue with the N800 is the outdoor screen visibility sucks.

David

bac522 2008-04-18 12:40

Re: the n810 as a bicycle computer
 
Quote:

Originally Posted by djs_tx (Post 171271)
Handlebar mount is pretty easy. I have my N800 mounted to the handlebars of my motorcycle with a RAM mount. One issue with the N800 is the outdoor screen visibility sucks.

David

And the rain ;)

gazza_d 2008-04-18 13:17

Re: the n810 as a bicycle computer
 
I bought a bluetooth GPS (holux slim240) for use with my N800, then bought a Nokia 6120 (went for Nokia to keep charger compatibility with the N800)

by chance I then found Nokia sports tracker for S60 phones, which sits on the phone, and tracks my ride/walk etc. It also logs any photos I take enroute with the phone. I can then upload them from the phone to the sports tracker website which displays all the workout data, and the track plotted on google maps. Really really cool stuff.

The main site is also very N8x0 friendly. Much better than taking your tablet mountain biking I think.

qole 2008-04-21 22:50

Re: the n810 as a bicycle computer
 
Quote:

Originally Posted by gazza_d (Post 171523)
I then found Nokia sports tracker for S60 phones, which sits on the phone, and tracks my ride/walk etc... Much better than taking your tablet mountain biking I think.

Yes, if you have an S60 phone. As I do not, then taking my tablet when I go wandering in the backcountry is required.

scanman717 2008-07-14 17:49

Re: the n810 as a bicycle computer
 
So did anyone find a decent APP to substitute for a bicycle computer?? Last weekend the wife and I went for a leisurely 16 mile ride (I'm gonna be sore for a while). I used Maemo Mapper and it did a great job capturing the track and displaying MPH, but it was a real PITA to go through the menu's to get the distance from start... Would live if that would be an option to leave displayed on the screen...

Or is there a decent GPS based trip computer that would display Speed, Avg speed, top speed, altitude, track file (map not necessary), distance from start.. there are a bunch of other things I think could be done, like total distance for the year, etc..

Anyway if there is something out there then I would love to know about it...

Thanks


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