Changes between Version 8 and Version 9 of HackingIRDongle


Ignore:
Timestamp:
11/21/12 14:00:23 (9 years ago)
Author:
sc
Comment:

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  • HackingIRDongle

    v8 v9  
    2525This is just a guide. 
    2626 
    27 Download i-helicopter from play store. 
    28 Use a dual head audio cable to connect audio jack of android device to line-in/microphone in laptop, run the app, turn volume up to highest, and move the throttle to a middle point.  
    29 Start recording with Audacity. The left channel is the IR code without carrier, the right channel is IR code with carrier. 
    30 IR code in audio/wave format is pretty easy to understand: 
     27 * Download i-helicopter from play store. 
    3128 
    32 small volume 
     29 * Use a dual head audio cable to connect audio jack of android device to line-in/microphone in laptop, run the app, turn volume up to highest, and move the throttle to a middle point.  
     30 
     31 * Start recording with Audacity. The left channel is the IR code without carrier, the right channel is IR code with carrier. 
     32 
     33[[Image(wiki:Attachments:orbit-IR-collections-audacity.jpg​)]] 
     34 
     35 
     36 
     37== IR code in audio/wave format is pretty easy to understand == 
     38 
     39 * small volume 
    3340[[Image(wiki:Attachments:Small_volume.png)]] 
    3441 
    35 middle volume 
     42 * middle volume 
    3643[[Image(wiki:Attachments:Middle_Volume.png)]] 
    3744 
    3845 
    39 MAX Volume 
     46 * MAX Volume 
    4047[[Image(wiki:Attachments:Max_Volume.png)]] 
     48 
    4149 
    4250You can tell from the pictures, that the signal is originally a sine wave. With volume going up, the signal gets cut off and then becomes a square wave, which is the IR Code we want to send out. (that's why we need to turn the volume up to max to use the IR dongle).