Dynamic clustering of touch sensor electrodes

A method comprising:

• connecting each electrode of a first subset of a plurality of electrodes of a sensor;
• applying voltage to the first subset after connecting each electrode of the first subset;
• determining a first value associated with a capacitance of the first subset after applying voltage to the first subset;
• determining, based at least on the first value, to alter the first subset of the plurality of electrodes to a second subset of the plurality of electrodes;
• connecting, in response to determining to alter the first subset of the plurality of electrodes to the second subset of the plurality of electrodes, each electrode of the second subset of the plurality of electrodes, the second subset having fewer electrodes than the first subset;
• applying voltage to the second subset after connecting each electrode of the second subset;
• and
• determining a second value associated with a capacitance of the second subset after applying voltage to the second subset.

An apparatus comprising:

• one or more processors;
• and
• a non-transitory computer-readable storage medium comprising logic, the logic configured to, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
• connecting each electrode of a first subset of a plurality of electrodes;
• applying voltage to the first subset after connecting each electrode of the first subset;
• determining a first value associated with a capacitance of the first subset after applying voltage to the first subset;
• determining, based at least on the first value, whether to alter the first subset of the plurality of electrodes to a second subset of the plurality of electrodes;
• connecting, in response to determining to alter the first subset of the plurality of electrodes to the second subset of the plurality of electrodes, each electrode of the second subset of the plurality of electrodes, wherein the second subset includes one or more electrodes included in the first subset, includes one or more electrodes not included in the first subset, and does not include one or more electrodes included in the first subset;
• applying voltage to the second subset after connecting each electrode of the second subset;
• determining a second value associated with a capacitance of the second subset after applying voltage to the second subset;
• and
• determining a position of an object based at least on the first and second values, the position indicating a projection of a portion of the object over a surface of the sensor.

A method comprising:

• connecting each electrode of a first subset of a plurality of electrodes of a sensor;
• applying voltage to the first subset after connecting each electrode of the first subset;
• determining a first value associated with a capacitance of the first subset after applying voltage to the first subset;
• determining, based at least on the first value, to alter the first subset of the plurality of electrodes to a second subset of the plurality of electrodes;
• connecting, in response to determining to alter the first subset of the plurality of electrodes to the second subset of the plurality of electrodes, each electrode of the second subset of the plurality of electrodes, wherein the second subset includes one or more electrodes included in the first subset, includes one or more electrodes not included in the first subset, and does not include one or more electrodes included in the first subset;
• applying voltage to the second subset after connecting each electrode of the second subset;
• determining a second value associated with a capacitance of the second subset after applying voltage to the second subset;
• and
• determining a position of an object based at least on the first and second values, the position indicating a projection of a portion of the object over a surface of the sensor.