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Date: Thu, 21 Aug 2014 01:48:56 -0300
Message-ID: <CAG4HiT6wwbmSA_KWsgHOqdeZVOCUsdhRxDhMubvkG1tEwVH5Sw@mail.gmail.com>
Subject: HC-SR04 and FreeBSD
From: Evandro Nunes <evandronunes12@gmail.com>
To: freebsd-arm@freebsd.org
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hello,

ive got a ultrasonic sensor model HC-SR04 and a beaglebone black as well as
a cubieboard2, both running FreeBSD 11 built from crochet and wiki
instructions

thanks to the help from loos@ I could manage to use a 5v relay with BBB
now, how can I read data from HC-SR04 sensor? do we have any library
available? or do we have any GPIO utility to do that?
btw how can I read values from GPIO pins when they are set to input?

thank you all in advance