 | | Re: GBC at BrickFest 2006
|
|
(...) That got me thinking...we had a few ball counters going: Rafe's impressive digital counter, Greg's analog one, and Brian's optical one in the "penalty box" with all of my modules (heh heh). My question is this: is there agreement on what the (...) (18 years ago, 5-Sep-06, to lugnet.robotics)
|
| |
| | Re: GBC at BrickFest 2006
|
|
(...) Actually, my counter was mechanical, in that each ball temporarily opened a normally closed touch sensor, and the RCX was just counting touches. For an optical one, you can use a ball breaking a lightbeam (two light sensors pointed at each (...) (18 years ago, 6-Sep-06, to lugnet.robotics)
|
| |
| | Re: GBC at BrickFest 2006
|
|
(...) I had success with a ball detector using only one light sensor in my little interactive get-the-ball-in-the-hole module. If the ball went into the hole, it rolled past a light sensor (old RCX version; is there a new nxt one?). Across from the (...) (18 years ago, 6-Sep-06, to lugnet.robotics)
|
| |
| | Re: GBC at BrickFest 2006
|
|
(...) Now that is a nice solution, and not one I'd thought of. Not having the silver brick, I could still use a (non-LEGO! Aaah!) solution of a small pice of reflective tabe or something. Cool. (...) I know that there's one power transformer that is (...) (18 years ago, 6-Sep-06, to lugnet.robotics)
|
| |
| | Re: GBC at BrickFest 2006
|
|
(...) I found a yellow LEGO rubber band on the TECHNIC table, so I took it home with me since most everyone was gone by that point. That's probably not a big deal, unlike an entire train regulator. :( (18 years ago, 6-Sep-06, to lugnet.robotics)
|
| |
| | Re: GBC at BrickFest 2006
|
|
(...) There are actually three ways to approach this: 1) Using something reflective on the far side of the ball chute - have the sensors light bounce back into the sensor - so the reading decreases when something gets in the way of the reflected (...) (18 years ago, 6-Sep-06, to lugnet.robotics)
|
| |
| | Re: GBC at BrickFest 2006
|
|
(...) That's the method I used on my own ball counter. During testing, I fed it with (counted) hundreds of balls, it never missed (or over counted) one. During LW2005 it counted about 15000 balls a day during a week... some wear now but still (...) (18 years ago, 7-Sep-06, to lugnet.robotics)
|
