Wufang HCSR04 DC 3.3-5V Ultrasonic Sensor Range Module SR04 HC-SR04 arduino IC

Operating Voltage

5V

logic voltage

3.3V or 5V

Quiescent Current

less than 2mA

sensor angle

less than 15 degrees

Detection distance

2cm-450cm

high precision

Up to 3MM

echo signal

Output TTL PWL signal

working frequency

40 Hz

Material

circuit board

color

blue+black

size

45*20*15 mm

weight

10 grams

Compatible with

Intelligent tracking/obstacle avoidance car

collocation optional

Ultrasonic sensor module HC-SR04 bracket (as shown)

1. HC-SR04 ultrasonic module can provide non-contact distance sensing function;
2. Including ultrasonic transmitter, receiver and control circuit.
3. Operation requirements: use IO port TRIG to trigger ranging.
A high level signal of at least 10us is required
4. Working principle:
Can automatically send 8 pro 40kz square wave to test whether there is a signal return.
If there is a signal return, output a high level signal through the IO port ECHO.
The duration of the high level signal is the time from transmitter to reception with ultrasound.