Abstract: A device of one embodiment includes a sensor, an indicator electrically connected to the sensor, a first base portion including a plurality of first channels, a second base portion including a plurality of second channels and located between the first base portion and the sensor, and a plurality of pins. Each pin includes first and second ends, and each pin passes through a respective first channel and a respective second channel such that the first end extends beyond the first base portion away from the sensor and the second end extends beyond the second base portion toward the sensor. Each pin is adjustably disposed within the respective first and second channels such that each pin is operable to move along a longitudinal axis of the pin. Furthermore, the sensor is operable to determine whether all pins of the plurality of pins are positioned proximate to the sensor.

Abstract: A device of one embodiment includes a sensor, an indicator electrically connected to the sensor, a first base portion including a plurality of first channels, a second base portion including a plurality of second channels and located between the first base portion and the sensor, and a plurality of pins. Each pin includes first and second ends, and each pin passes through a respective first channel and a respective second channel such that the first end extends beyond the first base portion away from the sensor and the second end extends beyond the second base portion toward the sensor. Each pin is adjustably disposed within the respective first and second channels such that each pin is operable to move along a longitudinal axis of the pin. Furthermore, the sensor is operable to determine whether all pins of the plurality of pins are positioned proximate to the sensor.