Ultrasonic

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Ultrasonic Sensor

Ultrasonic.jpg

An ultrasonic sensor (HC-SR04) allows Ardumower to detect obstacles.

Distance 2 to 450 cm

Wiring

Ultrasonic Module VCC (+5V)  — PCB VCC (+5V)    —  PCB1.3:  Pin1
Ultrasonic Module GND        — PCB GND          —  PCB1.3:  Pin2
Ultrasonic Module Trigger    — PCB Digital Pin  —  PCB1.3:  Pin3
Ultrasonic Module Echo       — PCB Digital Pin  —  PCB1.3:  Pin4


An internal schematics of the sensor can be found here.[1]