Im trying to build a circuit that can accrately measure the distance between two or multiple arduinos but i dont know where to start. i thought about using zigbee but bee is out of the question. Please help.
For accuracy I would start with an ultrasonic sensor, like the Maxbotix MaxSonar series (for example, here)
I just wonder .... which interface is better for accuracy with maxbotix sonar ? I used the analog in and it is...so so i think (or i miscalculated).
any experience feedback ?
Well a lot depends on the actual range you wish to be able to measure and what your specification for accuracy is.
So what is the minimum distance, maximum distance, and +/- accuracy requirements you wish to obtain?
Lefty
Well, i would like to range distance between 1cm and 6m, at close range 1 to 2 cm precision is ok, long range 70cm would do. But, i am afraid it is difficult with IR or Ultrasound, a mix of the 2 is too clumsy..