Chaining US Sensors

erco

An interesting concept to combine two ultrasonic sensors to detect multiple echo returns. Doesn't apply to PING, only the HCSR04 type sensors with separate trigger & echo pins. Primary sensor works as expected to find closest object using echo signal, which also triggers the secondary sensor's timing cycle to listen for subsequent echoes. I haven't tried it myself.

http://letsmakerobots.com/node/36863

kwinn

Anyone tried using two sensors separated by a couple of inches to measure distance and bearing to objects?

Phil Pilgrim (PhiPi)

kwinn wrote:

Anyone tried using two sensors separated by a couple of inches to measure distance and bearing to objects?

Yes: http://forums.parallax.com/showthread.php/134899

-Phil

kwinn

Interesting project Phil, thanks for the link. Certainly makes what bats do seem even more amazing.