Created
January 19, 2012 19:52
-
-
Save seabre/1642168 to your computer and use it in GitHub Desktop.
Connect TI Chronos Watch WIth Processing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
Get acceleration data from Chronos watch. | |
Taken from info posted at: http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/t/32714.aspx | |
Based off of the latest Python code on the Chronos wiki that I wrote. | |
Copyright (c) 2010 Sean Brewer | |
Permission is hereby granted, free of charge, to any person | |
obtaining a copy of this software and associated documentation | |
files (the "Software"), to deal in the Software without | |
restriction, including without limitation the rights to use, | |
copies of the Software, and to permit persons to whom the | |
Software is furnished to do so, subject to the following | |
conditions: | |
The above copyright notice and this permission notice shall be | |
included in all copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
OTHER DEALINGS IN THE SOFTWARE. | |
If you want you may contact me at seabre986@gmail.com | |
or on reddit: seabre | |
*/ | |
import processing.serial.*; | |
//Take what we know about the packets for starting the access point | |
//and put it in its integer representation | |
int startAccessPointNum[] = {255, 7, 3}; | |
//Take what we know about the packets for aquiring data from the chronos | |
//and put it in its integer representation | |
int accDataRequestNum[] = {255, 8, 7, 0, 0, 0, 0}; | |
//Convert it all to bytes so that watch will understand | |
//what we're talking about.. | |
byte startAccessPoint[] = byte(startAccessPointNum); | |
byte accDataRequest[] = byte(accDataRequestNum); | |
// We want to talk to the chronos... | |
Serial chronos; | |
//Hopefully, the port you're looking for is the same one | |
//as the chronos is assigned to. If not, change the | |
//"0" in Serial.list() to the appropriate value. | |
chronos = new Serial(this, Serial.list()[0], 115200); | |
//Start the access point.. | |
chronos.write(startAccessPoint); | |
//Until the port is still availible... | |
//Send data request to chronos. | |
chronos.write(accDataRequest); | |
//Processing doesn't like infinite loops...but we're going to do one anyway. | |
while (chronos.available() >= 0) { | |
//Accelerometer data is 7 bytes long. This looks really lame, but it works. | |
int[] buf = new int[7]; | |
for (int i = 0; i < 7; i++) | |
buf[i] = chronos.read(); | |
//Fourth byte indicates if there are coordinates. If the byte is 0xFF (255) | |
//Then there is no data. If it is 1, then data is valid. | |
//Sometimes the datatype comes back as other values...not sure if that | |
//means anything or not. | |
//Also, the Python version of this code ALWAYS returns 0xFF (255).. | |
//Don't know why that is. | |
if (buf[3] == 1) { | |
//println("Datatype: " + str(buf[3])); | |
println ("x: " + str(buf[4]) + " y: " + str(buf[5]) + " z: " + str(buf[6])); | |
} | |
chronos.write(accDataRequest); | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment