Ultrasonic Sensor HC-SR04

• Input Voltage: 5V
• Current Draw: 20mA (Max)
• Digital Output: 5V
• Digital Output: 0V (Low)
• Working Temperature: -15°C to 70°C
• Sensing Angle: 30° Cone
• Angle of Effect: 15° Cone
• Ultrasonic Frequency: 40kHz
• Range: 2cm – 400cm
• This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit.
• There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project!
• This sensor has additional control circuitry that can prevent inconsistent “bouncy” data depending on the application.