Lines Matching +full:projected +full:- +full:capacitance

1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
10 ``/dev/v4l-touch0`` to ``/dev/v4l-touch255`` with major number 81 and
16 Sensors may be Optical, or Projected Capacitive touch (PCT).
20 side-channel for diagnostics or tuning. In other systems, the ASIC is a simple
26 lines, or tx/rx). Mutual Capacitance measured is at the nodes where the
27 conductors cross. Alternatively, Self Capacitance measures the signal from each
30 A touch input may be determined by comparing the raw capacitance measurement to
31 a no-touch reference (or "baseline") measurement:
33 Delta = Raw - Reference
35 The reference measurement takes account of variations in the capacitance across
51 :ref:`Touch Formats <tch-formats>`.