SRF04 Даташит — SRF04 Arduino Ultra-Sonic Ranger — Devantech

Номер в каталоге : SRF04

Function : SRF04 / Ultra-Sonic Ranger

Производитель : Devantech

Ranges from 3cm to 3m
Returns a positive TTL level signal, width proportional to range
3-4cm Resolution
Dimensions: 43mm x 20mm x 17mm

цоколевка :

SRF04 Даташит

Описание :

The SRF04 was designed to be just as easy to use as the Polaroid sonar, requiring a short trigger pulse and providing an echo pulse. Your controller only has to time the length of this pulse to find the range.

SRF04 Connections

The SRF04 Timing diagram is shown below. You only need to supply a short 10uS pulse to the trigger input to start the ranging. The SRF04 will send out an 8 cycle burst of ultrasound at 40khz and raise its echo line high. It then listens for an echo, and as soon as it detects one it lowers the echo line again. The echo line is therefore a pulse whose width is proportional to the distance to the object. By timing the pulse it is possible to calculate the range in inches/centimeters or anything else. If nothing is detected then the SRF04 will lower its echo line anyway after about 36mS.

SRF04 Timing Diagram

 

SRF04 даташит PDF Download

SRF04 pdf

Reference Site : http://www.robot-electronics.co.uk/htm/srf04tech.htm

Другие с той же файл данные :  SRF04