Description
HC-SR04 ultrasonic wave detector ranging module for Arduino and microcontroller projects. Module performance is stable and measures distance accurately, comparable to SRF05 and SRF02 ultrasonic distance measuring modules. Detection distance 2cm to 450cm, high precision up to 0.3cm, blind spot 2cm. Voltage DC 5V, static current less than 2mA, level output high 5V and low 0V, sensor angle not more than 15 degrees. Board wiring: VCC, TRIG (control side), ECHO (receiving end), OUT (empty leg), GND. The TRIG pin is internally pulled with a 10K resistor; pull the TRIG IO pin low, then give a pulse signal of more than 10us.
All in one design: the HC-SR04 combines an ultrasonic transmitter, receiver, and control circuit in one module. When triggered, it sends out a series of 40 kHz ultrasonic pulses and measures the echo from an object to find the distance. Easy to install: four pins, VCC, TRIG, ECHO, and GND, in a small board made for embedded installation. Use it for robot obstacle avoidance, object distance measuring, liquid level detection, public security, and parking lot detection.
HC-SR04 Module Only is the sensor board alone. HC-SR04 + Transparent Bracket and HC-SR04 + Blue Bracket are the sensor with its acrylic mounting bracket and screws. Mounting Bracket – Transparent and Mounting Bracket – Blue are the acrylic bracket alone, without a sensor. Package contents: 1x HC-SR04 Ultrasonic Distance Sensor Module. I check every order before it ships. Ships from NY, USA.
See also: Robot Sensors · 37 in 1 / 45 in 1 Sensor Modules Starter Kit for Arduino UNO R3 / MEGA2560 · DHT22 / AM2302 Digital Temperature & Humidity Sensor Module · Guide: Which Sensor Should You Buy? Temperature, Motion, Distance, and Gas
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