I have done some tests using three modified hc-sr04 in order to check if it is possible synchronize the receivers accurately enough to determine if an object is to the left, near center, or to the right using time differences. Using only one hc-sr04 as active transmitter/receiver and two acting as …

Using 3 modified hc-sr04 to triangulate the position of one or more objects

DaveEvans September 7, 2021, 7:21pm 7

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