Brand :BEBONCOOL Manufacturer :BEBONCOOL has founded since2002. It aims at supplying best quality prodcuts and sales service to customers in the world. To make every customer enjoy a satisfacted shopping in BEBONCOOL SHOP is its primary goal. Specification : Using IO trigger for at least 10us high level signal. High precision: Up to 0.3cm Input trigger signal: 10us TTL impulse Echo signal: output TTL PWL signal Mode of connection: VCC/ trig (T)/ Echo(R)/ GND (VCC supply 5V, and GND is ground wire. TRIG is trigger control signal input, ECHO is echo signal output.) The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back. If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance = (high level time*velocity of sound (340M/S) Note: 1>The module should be inserted in the circuit before been power, which avoid producing high level of disoperation; If not, then power again. This module is not suitable to connect with electric power, if you need to connect this module with electronic power, then let the GND terminal of this module to be connected first, otherwise, it will affect the normal work of the module.
