Product description
HY-SRF05 is an ultrasonic distance sensor for non-contact distance measurement from approximately 2 to 450 cm. The module features separate ultrasonic transmitter and receiver elements as well as integrated control electronics.
A measurement is initiated by applying a pulse of at least 10 µs to the TRIG input. The module then transmits eight ultrasonic pulses at a frequency of 40 kHz and waits for the reflected sound. The ECHO output generates a pulse whose duration corresponds to the ultrasonic signal's time of flight to the object and back. The distance can then be calculated by a microcontroller, such as an Arduino.
Specifications:
- Model: HY-SRF05
- Type: Ultrasonic distance sensor
- Measurement principle: Ultrasonic Time-of-Flight (ToF)
- Measurement range: 2–450 cm
- Accuracy: Up to approx. 3 mm
- Ultrasonic frequency: 40 kHz
- Detection angle: ≤15°
- Supply voltage: 5 VDC
- Standby current: <2 mA
- Trigger: Digital pulse, minimum 10 µs
- Ultrasonic pulse: 8 cycles at 40 kHz
- Echo output: Digital pulse with pulse width proportional to distance
- Connections: VCC, TRIG, ECHO, OUT, GND
- Dimensions: Approx. 45 × 20 × 15 mm
