PING 28015 ultrasonic sensor

Specification

What		Comments
Identifier	PING28015
Interface	GPIO	1 pin
Provides	distance	meters
Properties	temperature	sound speed depends on ambient temperature
Datasheet

Code

-- Attach sensor to GPIO26
s = sensor.attach("PING28015", pio.GPIO26)

-- We tell to PING28015 that ambient temperature are 25º for adjust
-- the sound speed, used internally for calculate the distance from an
-- object
s:set("temperature", 25)

while true do
  print("distance: "..s:read("distance"))
  tmr.delayms(500)
end

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