User:ThomasT
From Openmoko
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Otherwise USB with an FTDI chip. | Otherwise USB with an FTDI chip. | ||
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| + | = Jogging = | ||
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| + | == Accelerometer == | ||
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| + | Mount the Freerunner to the shin and measure the damping and motion style with different shoes at various speeds. | ||
| + | Especially interesting to watch the aging of the shoes (different damping). | ||
= Openstreetmap = | = Openstreetmap = | ||
Revision as of 11:45, 22 August 2008
Just ordered my FreeRunner.
I want to use it as bicycle computer.
These are just ideas and wishes - not worth to make a separate wiki page.
Contents
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Bicycle Computer
Existing Projects
- http://projects.openmoko.org/projects/mokosport/ Dead
- http://blogs.thehumanjourney.net/finds/entry/20080306 Joseph Reeves uses its NEO1973 on a bicycle
- http://projects.openmoko.org/search/?type_of_search=soft&words=gps&Search=Search
Power Supply
Due to the relatively high current consumption of the Freerunner a power supply from a hub dynamo seems to be unavoidable.
I have a evaluation board of a Linear Technologies step converter which I will use at the beginning.
GPS
Existing Software
Getting GPS Data
On Freerunner there is no need to read from gpsd or similar. I just can get the data from /dev/ttySAC1
Additional GPS Functions
Altitude Plots
Of the travelled track and also of the upcoming (hopefully OSM will soon provide elevation information of the roads)
Trip Information
Garmin Etrex Legends trip information display is to stupid. I want infos for the current day and for the time since last break.
Slope, Vertical Speed
The GPS does not give sufficiently accurate vertical speed. A barometric sensor (see Variometer) would be nice. Calculation of the vertical speed by integrating the accelerometer readings also not accurate. But maybe it is possible to use the accelerometers to measure the slope of the road. How to calibrate it? Is it possible to automatically calibrate it from GSP reading?
Sideward Inclination of the Bicycle
By measuring the increase of the total acceleration not by change of the acceleration angle.
Road Quality
Can the road (e.i. surface) quality be recorded by measuring the vibrations with the accelerometers?
Car Counter
... using the builtin microphone. Or would it be possible with the accelerometers using high sampling rate?
Heart Rate Monitor
Are there Bluetooth Heart Rate Transmitters available?
Pedalling Frequency
Pedal sensors with Bluetooth and power supply by magnetic induction would be nice.
Otherwise USB with an FTDI chip.
Jogging
Accelerometer
Mount the Freerunner to the shin and measure the damping and motion style with different shoes at various speeds. Especially interesting to watch the aging of the shoes (different damping).
Openstreetmap
- GPS-Trail currently only dicussions there
I would like to have a simple application to add map information at my current location. Say, I am standing beneath an ATM, just use a menu item "Add ATM" and typing in its name - finished. There is no need for a map display. The program just displays the OSM nodes near the current location. And you can add a new node or modify an existing node.
Other Accelerometer Ideas
- Indoor use of those GPS games
- Programming a Marble game would be more fun than playing it
- Moving within a larger virtual screen by tilting the display.
More Brainstorming
Midi Input via Touchscreen
There is not much space to use the touchscreen as an ordinary piano keyboard.
What about using the touchscreen like the left hand fingering on a guitar, mandolin, banjo ore similar? The touchscreen lays in front of you in landscape mode. There are four rows, one for each finger.
| D# | G | B | d# | | D | F# | A# | d | | C# | F | A | c# | | C | E | G# | c | This layout might be to simple. Should it be optimized for easy chord playing?
Octave shifting via accelerometer reading?
