Externally controlled indicator

A device comprising:

• a housing;
• a user interface;
• an indicator configured to provide an indication;
• a first electronic processor within the housing and configured to control operation of the indicator;
• and
• a wireless communication device including a second electronic processor, the wireless communication device configured to:
• determine that the device was recently used based on an elapsed time since an input was received at the user interface,
• wirelessly communicate the elapsed time to an external device,
• receive a signal for controlling an indicator parameter from the external device based on the elapsed time, and
• communicate the signal to the first electronic processor,
• wherein the first electronic processor is configured to control the indicator according to the indicator parameter.

A system comprising:

• a first device including a user interface, an electronic processor, and an indicator that is controlled by the electronic processor;
• an external device;
• and
• a wireless communication device that is removably coupled to the first device, the wireless communication device including a transceiver, the wireless communication device configured to:
• determine that the first device was recently used based on an elapsed time since an input was received at the user interface,
• wirelessly communicate the elapsed time to the external device,
• receive a signal for controlling an indicator parameter from the external device based on the elapsed time, and
• communicate the signal to the first device,
• wherein the first device is configured to control the indicator according to the indicator parameter.

A method of controlling an indicator of a device, the method comprising:

• determining, by an electronic processor, that the device was recently used based on an elapsed time since an input was received at a user interface of the device;
• wirelessly communicating, by a wireless communication device, the elapsed time to an external device;
• receiving, at the wireless communication device, a signal for controlling an indicator parameter from the external device based on the elapsed time;
• communicating, by the wireless communication device, the signal to the electronic processor;
• and
• controlling, by the electronic processor, the indicator according to the indicator parameter.