Hey all,
I've recently started a project in which I look at how close someone has their chest to an object on a table. initially, I started working with an IMU but because the angle along which someone can turn their back isn't necessarily in a straight way working with angles got kind of iffy. This was me working with angles to avoid the drift from trying to use linear acceleration.
so my new idea is to use ultrasonic sensors placed on the chest at 3 or 4 locations (with known distances for one another), which are all only receivers, on something like a harness so no matter who wears it will have the same distance between the sensors.
then on the object on the table with a known location, I want to place a single ultrasonic sensor which is the single transmitter.
I saw that it was possible to cover either the transmitting or receiving sensor to trick the sensors into still sending a signal and thus waiting for the echo but couldn't find much about measuring for all 4 sensors simultaneously and whether the accuracy went down a lot or not.
Is this feasible with a single Arduino, or do I need more than one that communicate with each other? Or am I just dreaming something up that can't possibly work?