 | | Re: Purchase a handyboard? where???
|
|
(...) I recommend saving up your milk money and buying a pre-assembled, tested HandyBoard. Sure, it costs a little more, but for me (electronics moron that I am) it was worth it. I bought mine from Patrick Hui at the Robot Store in Hong Kong. I can (...) (28 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Polaroid Sonar Questions
|
|
(...) <snip> (...) I found that returning the median (middle value) of three successive readings filters out the noisy readings quite well--especially the occasional large error. Just a couple nested if-then statements are needed. (...) Sure, that (...) (28 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Expansion board assembly tips?
|
|
I just got a expansion board kit from Douglas Electronics and was wondering if anyone has any tips for assembling the board, I'm quite experienced at building kits but I thought maybe someone who had built the kit already might offer some advice, (...) (28 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Stupid multiple sonars...
|
|
(...) It is correct that you can use the remaining SPI pins as digital outs to trigger a second sonar. I've done it and it works fine. It's also true that there *is* signal contention on the echo lines if you simply plug 'em both into the same TIC (...) (28 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Beginner's questions...
|
|
(...) You'll need slotted disks mounted on the axles positioned between the emitter and the detector. I recommend using ones from a dead computer mouse. (...) You ought to check for wiring problems and excessive friction in the gears and axles. That (...) (28 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
