If you are looking for an ultrasonic ranging module , this 4 pin ultrasonic sensor is good choice . Its stable performance and high ranging accuracy make it a popular module in electronic market .

Specifications

• Power supply: 5V DC
• Quiescent current: <2mA
• Effectual angle: <15°
• Ranging distance: 2cm – 400 cm
• Resolution: 1 cm
• Ultrasonic Frequency: 40k Hz

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​For ultrasonic sensor arduino library, please click here

For ultrasonic sensor Arduino code, please click here