Hi. I am in a middle of a project which requires proximity/distance sensor. My first attempt was to use ultrasonic HC-SR04 as I have used one before. However in the middle of the build I have noticed that HC-SR04 is not sensing clothed objects properly(ie hand with a glove on). But my other project seems to be sensing things like that with no problem at all(I can hear it`s sound pulses). Sensors did came from different sellers and have slightly different markings on them.
Does anyone run into a similar problem? And what are other options for proximity sensing? Thanks for any suggestions ;]