Electronic DIY Ultrasonic Sensor HC-SR04 Ultrasonic Module For Arduino

Description:

1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal

Specifications:

Mode of connection:
1.VCC
2.trig(T)
3.echo(R)
4.GND

Module working principle:

(1) using IO trigger location, to at least10us high level signal;

(2) module to automatically send8 40KHz square wave, to automatically detect whether a signal return;

(3) a return signal, through the IO outputs a high level, high level for a time is

Ultrasonic wave from the transmitter to the return time. Testing distance = ( high level time * speed of sound (340M/S ) ) /2;

Competitive Advantage:

1. Convenient & Friendly Customer Service
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4. High Quality With Global Standards.
5. 1 Year Factory Warranty
6. Safe Shipping Way and Payment