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                                                                               PneumADDic II • Masterpiece 4   221
                    Keyboard Column Sensor




















                    The Keyboard Column Sensor sub-assembly is an important part of PneumADDic II’s
                    keyboard.As you will see, there is one touch sensor for each of the columns on the actual
                    keyboard.


                       Keyboard Column Sensor Step 0
















                      Keyboard Column Sensor Step 1



















                                                  The Potentiometer Brick
                                                  sub-assembly allows us to
                                                  combine all four of the
                                                  column touch sensors onto
                                                  one RCX sensor input.
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