= Touch and Feel = * DEVICES: Mechanical switches * SPST, SPDT, DPDT terminology (w/demo) * Switch bounce * Hardware de-bouncing - pull-up resistors, capacitors * Software de-bouncing * Potentiometer - pencil/graphite resistor, multimeter, analog input * THEORY: Digital vs. Analog input * MISC: Survey of other mechanical inputs/uses (e.g. magnetic reed switch, limit switches) * HANDS-ON: read a switch with a digital input and an analog value from the potentiometer with an analog input. == Experiments == * [https://learn.sparkfun.com/tutorials/sik-experiment-guide-for-arduino---v32/experiment-5-push-buttons Push Buttons]