[Bugs] #3258 UNSP: Turtleart XO-1.75 sensor calibration

Sugar Labs Bugs bugtracker-noreply at sugarlabs.org
Fri Dec 9 02:12:43 EST 2011

#3258: Turtleart XO-1.75 sensor calibration
    Reporter:  tonyforster                |          Owner:  walter                     
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  Turtleart                  |        Version:  Unspecified                
    Severity:  Unspecified                |       Keywords:                             
Distribution:  Unspecified                |   Status_field:  Unconfirmed                
 as at writing, r1 r2 v1 v2 are all the left audio channel

 in voltage mode, the input impedance is 1k ohm which implies the bias is
 not turned off

 calibration factors

 voltage    =(buf+9347)/13000
 resistance =(46000000/(30514-buf))-1150

 calibration spreadsheet attached

Ticket URL: <http://bugs.sugarlabs.org/ticket/3258>
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