 | | Light sensor initialization time?
|
|
Hellow! Here a little fact: the first reading on the light sensor _just_ after you have activated it is too high. It seems like one has to wait a little after activating the sensor. The following program shows it rather nicely: ____START OF CODE____ (...) (25 years ago, 27-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | Proximity sensor ( Was: Re: 8 power levels, and only 8?)
|
|
Hi Paul, (...) Hmmm... can you please post your code for that? I tried it this weekend (I found it here: (URL) but I couldn't quite get it to work. Did you activate the sensor? Regards, Martin (25 years ago, 24-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | Re: 8 power levels, and only 8?
|
|
Here is an interesting paper on using NQC to control motor speed. A similar technique could be used in leJOS: (URL) paper has lots of interesing ideas in it besides motor speed control. My favourite being the proximity sensor which I have remodelled (...) (25 years ago, 24-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | USB support added to leJOS 1.0.3.beta1
|
|
I have added USB support to the Win32 version of leJOS. It is in version 1.0.3.beta1 at (URL) thanks to Juergen Stuber for locating the initial modifications to the legos code at (URL) Many thanks to Jin Sato too. You will need to reload the (...) (25 years ago, 24-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | Re: 8 power levels, and only 8?
|
|
(...) Ok, here are some results of my investigation: - There is no general 8ms cycle - When you change motor settings they become effective on the next timer interrupt (occurs every ms), and the rotating pattern for a reduced powerlevel starts anew, (...) (25 years ago, 22-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | Re: StringBuffer and double
|
|
(...) Even better: send them to us and we'll add them to StringBuffer. (...) (25 years ago, 21-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | Re: StringBuffer and double
|
|
Hi myself, Gosh, you're stupid... :o) Ok, I didn't take a look into the StringBuffer.java before I answered: ____SNIP____ public StringBuffer append (double aDouble){ return append ("<no str+double>"); } ____SNIP____ Then, I won't delete my own (...) (25 years ago, 20-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | StringBuffer and double
|
|
Hi, I have just tried to do the following: ____SNIP____ double v = 1.23456 StringBuffer sb = new StringBuffer(); sb.append( v ); char[] cArray = sb.getChars(); ____SNIP____ on my RCX with lejos 1.0.2. The resulting string/char array has the length (...) (25 years ago, 20-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | Re: 8 power levels, and only 8?
|
|
Hi, (...) Bummer! I was afraid I might get that answer... :o) (...) Sure, but maybe it would be worth it, since I imagine that many/some of us will make some silly, but basic routine that cycles between float/stop and some motor power, anyway... (...) (25 years ago, 19-Sep-01, to lugnet.robotics.rcx.java)
|
| |
| | Re: 8 power levels, and only 8?
|
|
(...) This is what the ROM routines support. (...) Yes, but then we'd need our own motor control routines in the lejos VM, and that would cost some precious memory. (...) Yes, the standard LEGO routines make it very hard to control speed. Basically (...) (25 years ago, 19-Sep-01, to lugnet.robotics.rcx.java)
|
