Ekokumppanit/Bicyclesim
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Use serialport data from TI Launchpad instead of keystrokes.

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This commit is contained in:
Juho Teperi
2012-10-23 10:10:03 +03:00
parent 86c3fb0537
commit 76adadba57
4 changed files with 54 additions and 20 deletions
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14
README.md
View File

@@ -16,13 +16,9 @@ a speed sensor.
## Speed sensor
Most basic speed sensor would be "Keyboard" that sends a keypress whenever
the wheel has turned one revolution.
This kind of sensor can be built from a old keyboard by soldering a reed switch
to right conductors at keyboard circuit board. Some instructions here:
http://www.instructables.com/id/Hacking-a-USB-Keyboard/.
Most basic speed sensor would be "Keyboard" that sends a keypress whenever the wheel has turned one revolution.
~~This kind of sensor can be built from a old keyboard by soldering a reed switch to right conductors at keyboard circuit board. Some instructions here: http://www.instructables.com/id/Hacking-a-USB-Keyboard/.~~
Doesn't work. The reed switch wont be closed long enough for the keyboard controller or computer to register wheel revolutions.
It is also possible to built equivalent device from Arduino Uno:
http://mitchtech.net/arduino-usb-hid-keyboard/.
Or more easily with the new Arduino Due:
http://www.i-programmer.info/news/91-hardware/4965-new-powerful-arduino-due-.html.
It should be possible to build working device from Arduino Uno (http://mitchtech.net/arduino-usb-hid-keyboard/) or Arduino Due (http://www.i-programmer.info/news/91-hardware/4965-new-powerful-arduino-due-.html).
Device should read the reed switch status every 1ms and send keypress maybe every 500ms (send 'a' if there was one wheel revolution since last keypress, send 'b' if two etc).

5
bicyclesim.sublime-project
View File

@@ -11,10 +11,7 @@
".cache",
".meteor"
],
"path": "/home/juho/Source/bicyclesim"
},
{
"path": "/home/juho/Source/bicyclesim-bundle"
"path": "."
}
]
}

2
client/bicyclesim-meteor.html
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@@ -98,7 +98,7 @@
<div class="fluid-row">
<form>
<legend>Asetukset</legend>
<label>Liikekerroin. Vaikuttaa nopeuteen jolla reitillä liikutaan. Ei vaikuta nopeuslukemaan tai kuljettuun matkaan.</label>
<label>Liikekerroin. Vaikuttaa kuljettuun matkaan mutta ei nopeuslukemaan.</label>
<input type="text" value="{{settings.multiplier}}" id="settings_multiplier"/>
<label>Renkaan koko, tuumia</label>
<input type="text" value="{{settings.diameter}}" id="settings_diameter"/>

53
client/main.sim.js
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@@ -41,14 +41,14 @@ $(document).bind('keydown.space', function () {
}
});
function speedo() {
speed_buffer.push(revs * c());
revs = 0;
// function speedo() {
// speed_buffer.push(revs * c());
// revs = 0;
Session.set('speed', speed_buffer.sum() / 5);
}
// Session.set('speed', speed_buffer.sum() / 5);
// }
setInterval(speedo, 500);
// setInterval(speedo, 500);
// 5sec, 2 values / sec.
var speed_buffer = createRingBuffer(5 * 2);
@@ -72,8 +72,49 @@ Template.sim.helpers({
}
});
// This version is connected to a bicycle using a TI Launchpad which sends data to
// computer using a serialport. Nodejs service reads that data using node-serialport
// and then sends it through websocket.
var sock = new SockJS("http://localhost:9999/speed");
function init_sim() {
sock.onopen = function() {
debug('open');
};
sock.onmessage = function(e) {
if (Session.equals('page', 'sim') && window.point) {
debug('message', e.data);
var dist = parseInt(e.data, 10) * c();
speed_buffer.push(dist);
Session.set('speed', speed_buffer.sum() / 5);
Session.set('distance', Session.get('distance') + localStorage.multiplier * dist);
window.traveled += localStorage.multiplier * dist;
if (window.traveled >= window.point.distance) {
var next = Points.findOne({_id: window.point.next});
// Stay on current point if no next point exists
if (next) {
window.traveled -= next.distance;
maps.travel(next._id, {route: true});
window.point = next;
}
}
}
};
sock.onclose = function() {
debug('close');
};
Meteor.autosubscribe(function () {
if (Session.equals('page', 'sim')) {
var route = Routes.findOne({_id: Session.get('route')});