Systems and methods for temporarily disabling user control interfaces during attachment of an electronic device

A head-mounted display system configured to project light to an eye of a user to display augmented reality image content in a vision field of said user, said head-mounted display system comprising:

• a frame configured to be supported on a head of a user;
• a display coupled to the frame, said display configured to project light into said user's eye to display augmented reality image content to the user's vision field;
• and
• an electronic device configured to be attached to a portion of a user's clothing or accessory, the electronic device being remote from the frame, the electronic device comprising:
• a housing comprising a first portion and a second portion separated from the first portion by a first gap, the first portion comprising a first projection extending into the first gap and being separated from the second portion by a second gap, said housing further comprising a connecting region joining the first portion and the second portion, the electronic device being configured to be attached to a portion of the user's clothing or accessory by inserting a portion of the user's clothing or accessory through the second gap between the first projection and the second portion;
• an electrical power supply supported by the housing and configured to provide power to the display;
• one or more user control interfaces disposed on the housing, the one or more user control interfaces configured to control a parameter of the head-mounted display system;
• and
• a strain gauge disposed in or near the connecting region, the strain gauge configured to detect a change in strain of the connecting region caused by a change in a size of the second gap,
• wherein an electronic control system of the electronic device is configured to temporarily disable the one or more user control interfaces in response to the strain gauge detecting a strain in the connecting region.