Fastener device with a sensor for workpiece detection

A fastener device that drives a fastener from a plurality of fasteners into a workpiece comprising:

• a housing;
• a nose assembly connected with the housing, the nose assembly having a nosepiece and a drive channel into which the fastener to be driven into the workpiece is fed;
• a magazine configured to hold the plurality of fasteners and from which the fastener is fed into the drive channel;
• a driver movable along a drive axis of the nose assembly to engage and drive the fastener in the drive channel into the workpiece;
• a motor assembly disposed within the housing, the motor assembly configured to transmit power to the driver to thereby cause the driver to translate along the drive axis;
• a trigger switch carried by the housing, the trigger switch configured to be actuated in response to an operator input to generate a trigger switch signal;
• a sensor configured to sense a distance between the nosepiece and the workpiece and generate a sensor signal in response thereto;
• and
• a controller having one or more processors and operatively connected to the motor assembly, the sensor and the trigger switch,
• wherein the controller is configured to initiate a drive cycle of the fastener device to drive the fastener into the workpiece based on the trigger switch signal and the sensor signal,
• wherein the sensor is disposed on at least one of a portion of the magazine or a portion of the housing,
• wherein the sensor includes a plurality of sensors,
• wherein one of the plurality of sensors is disposed on the portion of the magazine, and
• wherein the other of the plurality of sensors is disposed on the portion of the housing.