eforman:
@Teckel thank you for this library contribution. Is it possible to use this with an ultrasonic sensor like the Hagisonic HG-M40DAI? Its signal output timing is from rising edge of input pulse (trigger) to rising edge of output pulse (echo). In other words, almost the reverse of sensors like Ping.Datasheet: http://www.robotshop.com/media/files/pdf/hagisonic-anibat-data-sheet.pdf.
If you're curious why the Hagisonic sensor, this "AniBat" model has the unique advantage (AFAIK) of an extremely wide field of view - 180°.
Thanks,
Eric
It sounds like it's similar to the URM37 sensor (hi/low switched). I'm sending you a private message that may help.
Tim