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A comment on Try quickly typing 1+ 2 + 3 into the iOS 11 Calculator. Parent comment

Re:Try quickly typing 1+ 2 + 3 into the iOS 11 Calculator by blackguardx on Tuesday October 24, 2017 @02:33AM (#15539664)
Switches are usually connected to digital inputs with one wire as well. The other wire is connected to either power or ground. The wire to the microcontroller is either pulled up or down with a resistor to power or ground, respecively.
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Re:Try quickly typing 1+ 2 + 3 into the iOS 11 Calculator by krastanov on Tuesday October 24, 2017 @01:01PM (#15543104)
Yes, but capsense does not require that power/ground wire.
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