The SRF05 is a new design of ultrasonic range finder and features an extended detection range. Two operational modes are available, single pin for trig/echo or 2-pin for compatibility with the SRF04.
The input trigger is a 10µS min. TTL level pulse and the echo pulse is a positive TTL level signal, with the width proportional to the object range.
Q. Would it be possible to connect this sensor to a PICAXE 08M (or something similar) to create a simple output that buzzes through a buzzer as the object becomes closer to the sensor? Would it be able to be programmed on the seperate PICAXE 08M via flowchart? Many Thanks