Hand-held power tool, and method for operation

A hand-held power tool, comprising:

• a housing having a tip;
• a pressure detecting device comprising:
• a head that extends from the tip, wherein the head is displaceable relative to the housing and is configured to receive a fastening element from a magazine;
• a pressure sensor situated between the head and a portion of the housing, wherein pressure is exerted on the pressure sensor when the head is pressed onto a workpiece and displaced toward the housing;
• wherein the pressure detecting device is configured to detect a contact pressure which corresponds to the pressure exerted on the pressure sensor;
• a drive device configured to drive the fastening element through said head and into a workpiece;
• an operating switch configured to be manually moved to an operating position by a user of the hand-held power tool;
• at least one acceleration sensor;
• and
• a controller configured to:
• activate the hand-held power tool depending on output of the at least one acceleration sensor;
• begin monitoring the contact pressure detected by the pressure detecting device in response to the operating switch being moved to the operating position;
• continue to monitor the contact pressure while the operating switch remains in the operating position and (ii) the contact pressure is lower than a predefined limit value,
• automatically activate the drive device to drive the fastening element when the detected contact pressure increases above the predefined limit value while the operating switch is being held in the operating position and only when the at least one acceleration sensor indicates that the hand-held power tool is not being moved, and
• wherein, over a time interval during which the operating switch is held continuously in the operating position, perform at least a first actuation and a second actuation of the drive device to drive a first fastening element and a second fastening element, respectively, wherein the first actuation is performed a first time the detected contact pressure exceeds the predefined limit value during the time interval, and the second actuation is performed the second time the detected contact pressure exceeds the predefined limit value during the time interval.