KEYESTUDIO HR-SR04 ultrasonic module KS0328, blue, 3pcs.

This kit includes 3 ultrasonic modules HR-SR04 commonly used for distance measurement. The use of ultrasound is fast, convenient, and simple for calculation, achieving real-time distance control.

It can provide non-contact detection distance of 2cm-450cm, and its accuracy is up to 3mm. The ultrasonic module has an ultrasonic transmitter and receiver as well as the corresponding control circuit.

Technical Specifications:

• Working Voltage: 5V(DC)
• Static current: Less than 2mA
• Output signal: Electric frequency signal, high level 5V, low level 0V
• Sensor angle: Not more than 15 degrees
• Detection distance: 2cm-450cm
• High precision: Up to 0.3cm
• Input trigger signal: 10us TTL impulse
• Echo signal: output TTL PWL signal

Note: The product is specialized and requires technical knowledge.