|
|
 | | Re: Robot positioning
|
| William - For my group project, we bought sonar transducers and built circuits for them. Our original recieving circuit is digital rather than analog as we were only going to have one. The circuits we used are on our group's website on our (...) (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
| | | | | Re: 6.8nF Capacitor
|
| I don't suppose you know what the formula is for calculating the value of the frequency ?. 1/(R4*C6) possibly ?. This equation gives 38396Hz (38.4KHz) which means that my 6.6nF caps give 39560Hz (39.6KHz) which is closer to 40KHz than the 6.8nF (...) (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
| | | | | Re: Robot positioning
|
| Hi Kate, I just want to know how/where to get a sonar transmitter/reciever pair with different frequencies for robot positioning. Can sonar module from Polaroid do that? Thanks, William (...) on (...) (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
| | | | | Re: Robot positioning
|
| If you want to return to "base," all you need is a beacon of some sort. For example, you could use CdS cells (or anything that finds EM in the visible light/low IR range) and a lightbulb (or series of lightbulbs, like a strand of Christms tree (...) (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
| | | | | Melissa Virus
|
| I have found the source and fortunately it is not from a HB site. It was from the Washington and Lee University EE school. (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
|
|
