HC-SR04 Ultrasonic Distance Sensor Arduino Nano Low-noise analog signal path

Low-noise analog signal path

Security and Instrumentation

All of the control inputs are internally pulled low

This board is used with Wi-Fi chips and Bluetooth Dual Mode

Seeed Studio BeagleBone® Green Schematic v1

HC-SR04 Ultrasonic Distance Sensor Arduino Nano Low-noise analog signal pathThis 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