- Uses IO trigger for at least 10us high-level signal
- Automatically sends eight 40 kHz pulses and detects pulse signal back
- Measures time of high output IO duration for calculating test distance
- Test distance formula: (high-level time × velocity of sound (340 m/s)) / 2
- Power supply 5V DC
The HC-SR04+ Ultrasonic Sensor is a 4-pin module that operates on a voltage range of 3.3V to 5.5V. It is commonly used for distance measurement and obstacle detection in various applications.
The sensor utilizes an IO trigger signal that needs to be set to a high-level signal for at least 10 microseconds. Once triggered, it automatically emits eight pulses of ultrasound at a frequency of 40 kHz. It then detects the echo signal that bounces back from the target object.
By measuring the duration of the high-level output signal from the sensor, it calculates the distance to the target object using the formula: (high-level time × velocity of sound (340 m/s)) / 2. This provides an estimate of the distance between the sensor and the object.
The HC-SR04+ Ultrasonic Sensor operates on a power supply of 5V DC, making it compatible with common microcontrollers and development boards. It is widely used in robotics, automation, proximity sensing, and other applications where non-contact distance measurement is required.
Please note that the actual measurement accuracy may be affected by factors such as environmental conditions, object surface, and sensor positioning. It is important to refer to the manufacturer's specifications and guidelines for proper installation and usage of the sensor.
