Ultrasonic HC-SR04 Module Distance Sensor

• The Ultrasonic Sensor HC-SR04 is used to measure the distance using sound waves.
• It sends ultrasonic pulses and measures the time it takes for the pulses to bounce back after hitting an object.
• By calculating the time taken for the sound waves to return, the sensor can determine how far away the object is.
• The sensor measures the distance around 2cm to 450cm away, but we think 10cm-250cm will get you the best results
• The HC-SR04 sensor has four pins VCC, GND, Trigger, and Echo.

Specification:

• Operating Voltage: 3V – 5.5VDC
• Operating Current: 2.2mA
• Measuring Range: 2cm – 450cm
• Operating Frequency: 40KHz
• Operating Temperature:  0°C to 70°C
• Weight: 6g
• Dimension: 45mm x 20mm x 15mm