**3 or 5 Units** HY-SRF05 Precision Ultrasonic Range Sensor Module for Arduino

Sensor, Ultrasonic Distance, high precision HY-SRF05

Choose between 3-unit or 5-unit pack!

Ultrasonic sensors overcome many of the weaknesses of IR sensors - they provide distance measurement regardless of color and lighting of obstacles.

They also provide lower minimum distances and wider angles of detection to guarantee that obstacles are not missed by a narrow sensor beam.

This model is an upgrade from the lower precision HC-SR04. This has 5 pins and can be used in 1-pin trigger/echo or 2-pin.

Use these formulas to calculate distance:

Distance (in cm) = (elapsed time * (340 m/s)) / 50

Distance (in inches) = ((elapsed time * (340 m/s)) / 50) * 0.393701

Specifications

Trigger Pin Format: 10 uS digital pulse

Sound Frequency: 40 kHz

Echo Pin Output: 0-Vcc

Echo Pin Format: output is DIGITAL and directly proportional with range. See our conversion formula above.

Measurement Range: 2cm to ~4.5m

Measurement Resolution: 0.3cm

Measurement Angle: up to 15 deg

Measurement Rate: 40 Hz

Supply Voltage: 4.5V to 5.5V

Supply Current: 10 to 40mA

Connector: standard 5-pin male connector which can plug directly into breadboards.