|Item Model Number||HCSR04|
|Maximal Range||2 CM TO 400CM|
|Minimum Order Quantity||25 Piece|
Working voltage : 5V(DC)
Static current: Less than 2mA.
Output signal: Electric frequency signal, high level 5V, low level 0V.
Sensor angle: Not more than 15 degrees.
Detection distance: 2cm~450cm.
High precision: Up to 3mm
Mode of connection: VCC / trig(T) / echo(R) / GND
Provide the IO trigger supplying at least 10us sequence of high level signal
The module automatically sends eight 40khz square wave and automatically detects whether receive the returning pulse signal
If there is a return signal, the output level will be high and the high time of the signal is the time from transmitting to receiving. Please refer the datasheet for exact details.