ECHO — pulse width out, proportional to distance (~58µs per cm of round trip)
GND
विनिर्देश
सप्लाई वोल्टेज
5 V DC
Working current
15 mA
लॉजिक लेवल
5 V (TRIG and ECHO)
Measuring range
2–400 cm
Resolution
≈3 mm
Measuring angle
15°
Ultrasonic frequency
40 kHz
Trigger pulse
10 µs HIGH
Distance formula
Echo time (µs) / 58 = cm
Measurement cycle
≥ 60 ms between pings recommended
आकार
45 × 20 × 15 mm
नोट्स
ECHO is a 5V output. Feeding it straight into a 3.3V MCU input (ESP32, most ARM boards) is out of spec — use a voltage divider (e.g. 1kΩ over 2kΩ) or a level shifter first.
~15° detection cone, 2–400 cm range; soft or angled surfaces absorb or deflect the ping instead of returning it.
