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 Robotics / RCX / Java / *340 (-10)
  Re: Communication Speed, PC -> RCX, LEJOS!
 
From the picture (d1_p31) it looks as though all 4 RCXs can see the tower. I don't know anything about pcrcxcomm.jar or rcxf7port; and not much about lejos, however, if all 4 RCXs try to respond to the tower, you will have collisions. Try covering (...) (22 years ago, 7-Jul-04, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.java)
 
  Communication Speed, PC -> RCX, LEJOS!
 
Hi everyone, Im working on a project with controlling a large Container Crane by 4 RCXs. I have implementet some controlling and a lot of functions in the model, including a userinterface made in Java for a laptop. The crane is controlled by a (...) (22 years ago, 7-Jul-04, to lugnet.robotics.rcx.java, lugnet.lego.dacta, lugnet.robotics.edu, lugnet.robotics.rcx.legos, FTX)
 
  Re: train control
 
Hi Daniel, (...) sorry to reply so late, I wanted to try it myself but didn't get around to do it yet (I'm starting an IT-Business as a consultant/systems programmer, see (URL) managed to run a train from an RCX with the standard power levels using (...) (22 years ago, 5-Jul-04, to lugnet.robotics.rcx.java)
 
  Re: train control
 
(...) There is a fundamental difference between the RCX and a Lego Train controller - the controller uses smooth power from a 3-pin regulator, with the voltage varied using a chain of resistors. The RCX uses PWM power with approximately 166ms square (...) (22 years ago, 3-Jul-04, to lugnet.robotics.rcx.java)
 
  train control
 
hi I want to use rcx to control a lego train, but the fact that lejos only have 7 levels makes it dificult to set the speed. Jürgen Stube wrote in september2001: "Yes, the standard LEGO routines make it very hard to control speed. Basically with an (...) (22 years ago, 28-Jun-04, to lugnet.robotics.rcx.java)
 
  RE: Bluetooth and firmware query
 
Mike, If you're interested, pbForth replacement firmware may be the answer for many of your issues. My serial driver for the RCX is a straight half duplex that turns off the receiver when transmitting to avoid echoes from the IR. It could be (...) (22 years ago, 5-Apr-04, to lugnet.robotics.rcx.java, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
 
  Bluetooth and firmware query
 
As some of you may know, we have been hacking RCXs and adding bluetooth modules. What would make life easier is some help modifying the firmware to increase the speed of the serial protocols to the max the Hitachi chip can handle, which is a lot (...) (22 years ago, 5-Apr-04, to lugnet.robotics.rcx.java, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
 
  LejWay (Re: Legway with Standard Lego Light Sensors)
 
Salut Philippe, hi everybody, (...) a Lejos version. The hardware is the same with two sensors, and the program is loosely based on yours. Tweaking was not easy, but with a little luck the program below now manages to stand on a sheet of white paper (...) (22 years ago, 17-Mar-04, to lugnet.robotics, lugnet.robotics.rcx.java)
 
  Re: Driver for Linux USB Tower
 
How did you do to specify that it is an 2.4.20-4GB-athlon kernel version? When I'm trying to compile it using : ./configure make su make install the complier says : /lib/modules/2.4.20-...usbtower.o was compiled for kernel version 2.4.20-4GB while (...) (22 years ago, 10-Mar-04, to lugnet.robotics.rcx.java)
 
  Re: Voltage>10V????
 
Hi, I think it is better to continue the discussion here so everybody can profit. (...) The difference is probably negative, often the voltage increases after batteries get a little exercise, maybe because they get warmer. Can you try to display it (...) (22 years ago, 10-Mar-04, to lugnet.robotics.rcx.java)

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