1. Open the scale
2. Rest your finger on the trackpad
3. While mainting finger contact, put your object on the trackpad
4. Try and put as little pressure on the trackpad while still maintaining contact. This is the weight of your object
That is, the pressure sensors only work if it detects capacitance, so you need to be touching the track pad (but not too much!!) while weighing something.
A tiny bit of hardwired dedicated logic integrated into the camera module would be more than adequate to do this - just gating of either the digital I/O or the power to the camera, and a pulse-stretcher so the LED goes on for at least a few seconds each time to prevent an attack by rapidly flicking the camera logic on and off.
A similar circuit for the microphone with a different-coloured physical LED - not just a software-controlled dot on the screen - would be a good idea too.
- Amazon finally adds a feature that has been standard since 2005
- Texas accidentally does something good for privacy
Would it possible to add a feature where hovering over a title displays the original title?