To link four Ultrasonic HC-SR04 Distance sensors, first connect 5V and ground to each sensor, then connect four gpio pins one to each sensor trigger pin, and then use a potential divider circuit to connect each of the echo pins to four gpio pins.
The Ultrasonic Sensor Is Connected To The Raspberry PI 4 GPIO- Ultrasonic sensors have a transmitter (Trigger) that can broadcast infrared sound waves and a receiver that receives reflected sound waves, as previously mentioned (ECHO pin). It also has power pins (VCC and GND).
The Toposens TS3 sensor is an embedded sensor system that uses ultrasound scanning to provide a large field of view of up to 160° and simultaneous 3D measurements for various objects inside the scanning area.
The interference between two ultrasonic sensors is unavoidable. The issue is that you will occasionally obtain strange findings and have no idea why, even if they are pointing in opposite directions. You should absolutely switch the two sensors around.
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