Hi,
I wanted to add sonar to my arducopter / arduplane and I am wondering what is the limitation in which why can't use the HC-SR04, its a cheap sonar that costs <$5.
Is this a software limitation or a hardware?
I would just love to know! Please enlighten me
Replies
No limitation to using it. But you'll have to figure out the correct pins and calibration.
More details at http://copter.ardupilot.com/wiki/common-rangefinder-maxbotix-analog/