 | | Re: Sound.playTone
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Hi Daniel, (...) True (...) This does not seem to be a problem with my code; Motor.A.forward(); for (float x=0; x<1000; x+=0.1f) { int sx = (int)(Math.sin(x)*10.../calculate sine once Motor.A.setPower(3+3...0);//avoid negative power (...) (23 years ago, 21-May-03, to lugnet.robotics.rcx.java)
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| | Re: R: Upgrade RCX?
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Hi, the board is still under development, do far I dont have any PCB layout. All is done on a prototype board and not all comonents tested yet. A simple port of BrickOS is also not possible, because of the complete different structure of the µC. I (...) (23 years ago, 21-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Sound.playTone
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hi The Sound.playTone method always return immediatly. It seems that it only puts the information in a queue, which is then played in background. This can be good but can also be a problem to control the program behavior. For instance, i want to (...) (23 years ago, 21-May-03, to lugnet.robotics.rcx.java)
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| | R: Upgrade RCX?
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I'm using Lego MindStorms for didactical laboratory at Politecnico di Torino. I'm interested in your project. I have two questions: Would it be difficult to reproduce in multiple copies your board? How do you solve the problem of porting the (...) (23 years ago, 17-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: Upgrade RCX?
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(...) Hi Rand, I have started an hardware replacement for the RCX. Its based on an 16bit µController, an Infineon (Siemens) C164 with 128kb flash, 128kbSRAM and 64kb EEPROM. The controller plus the all memory is on a module from Phytec "Dipmodule (...) (23 years ago, 17-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: Upgrade RCX?
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(...) take a look at Robobricks (URL) also playing around with such an idea, but smaller (most devices should fit in a 2*4 brick) and faster (115 kBaud bus). My first notes can be seen here (URL) regards, Stef Mientki (...) (23 years ago, 6-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Upgrade RCX?
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Has anyone ever tried to upgrade the memory in the RCX? ( External RAM that is ). What about upgrade the CPU to 60kbyte PROM version? No need to use expanded mode, then a ton of I/O would be available... Anyone thought about building a RCX (...) (23 years ago, 6-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | DATALOG
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Hello! I was wondering if anyone could point me to an example showing the use of DATALOG. I'm trying to test a sensor and then send the values back to the PC, is this possible to do with DATALOG or should I do it using arrays such as the example in (...) (23 years ago, 5-Mar-03, to lugnet.robotics.rcx.java)
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| | Re: usb from .java best how
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(...) Pat, Lejos 2.1.0 includes JNI libraries that support all forms of RCX comms. The PC Tower class interfaces with serial and USB towers. It lets you send and receive standard Lego packets. The send and receive methods support the Lego firmware (...) (23 years ago, 5-Mar-03, to lugnet.robotics.rcx.java)
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| | Re: Plz can someone help me understand an error code in my RCX?
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Hi Gabriel, your program hit an exception. The code is explained very briefly at the beginning of the README: -- Exceptions: Use lejos -verbose. Exceptions are shown in the RCX as [XXXX Y], where XXXX = method_signature, and Y = (...) (23 years ago, 25-Feb-03, to lugnet.robotics.rcx.java)
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| | Plz can someone help me understand an error code in my RCX?
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Hi everyone, I’m a new Lego Mindstorms user and I’m starting with leJOS version 2.1.1 and a j2SDK 1.4.1 platform. I have already made a simple line follower robot with only 1 light sensor. The code was really simple and I use a listener to make it (...) (23 years ago, 25-Feb-03, to lugnet.robotics.rcx.java)
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| | Help with DataOutputStream and DataInputStream
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Hi people, I´m working with lejos 2.1 and the serial tower. I was trying to send a matrix of floats from the PC to the RCX using as a model the DataInputStream and DataOutputStream examples that came with lejos. The problem I have, is that I´m (...) (23 years ago, 7-Feb-03, to lugnet.robotics.rcx.java)
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| | Re: usb from .java best how
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(...) Offline thanks I'm told that: (URL) a one page Lejos usage summary in slide 26 of 31 that says `Lejosfirmdl` can download new firmware, which necessarily involves talking thru USB or serial. Code for .java thru .c to USB may only be a few (...) (23 years ago, 3-Feb-03, to lugnet.robotics.rcx.java)
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| | usb from .java best how
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To talk USB from .java, from Linux ff. 2.4.19, Win 95B/ 98/ ME/ Win NT/ 2K/ XP, and/or MacOS 9/X ... ... what techniques are most easy to learn, fast, reliable, and yet arbitrary enough to support a Lego USB IR tower? That is, what is the USB (...) (23 years ago, 3-Feb-03, to lugnet.robotics.rcx.java)
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| | Re: frame RCX reply how
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(...) Anyone know more specifically where to read how Lejos frames standard RCX IR replies? Does Lejos even include any .java code that runs on the PC? I mean to be asking how a PC should frame the standard replies from Lego RCX fimware, not how a (...) (23 years ago, 1-Feb-03, to lugnet.robotics.rcx.java)
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| | framing RCX LNP replies in Java
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(...) Thanks I reached: src/org/javastorms/lnp/IR.java (...) I think I see ... readMsg accepts what it likes else dies after reading the first distasteful byte. readMsg likes either of xF0 or xF1, then a length byte, then that many bytes, then a (...) (23 years ago, 1-Feb-03, to lugnet.robotics.rcx.java)
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| | Re: fast download with Serial-Tower is no faster
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(...) Frederic, lejosrun does not support 4x download. It has a -f or --fast flag but the "use_fast" variable that this sets is not used. lejosfirmdl does support 4x download with serial towers. It does this by first downloading a fast firmware (...) (23 years ago, 18-Jan-03, to lugnet.robotics.rcx.java)
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| | fast download with Serial-Tower is no faster
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Just got my second RIS, a 1.5 with Serial-Tower this time. I did not installed any other software than the previous I had (Win98, JDK1.3, Lejos 2.0, USB Drivers for Lego-Tower). I have just set RCXTTY=COM1. Problem: when doing a "lejosrun -f (...) (23 years ago, 17-Jan-03, to lugnet.robotics.rcx.java)
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| | Re: Transmitting time USB vs serial
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(...) Michael, I tried your programs on Windows and Linux. On Windows 98 the USB tower takes about one second to reply (990 - 1100ms). On Linux it took about 9 seconds as you indicate. This looks like a problem with the Linux USB driver. I will ask (...) (24 years ago, 5-Jan-03, to lugnet.robotics.rcx.java)
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| | Transmitting time USB vs serial
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Hello, I use lejos 2.1.0 and legousbtower 0.52 from the lejos distribution. I measured the transmitting time of an Int from PC to RCX with the attached programs and got the following result: 1. single integer (LED at the tower is off before pressing (...) (24 years ago, 28-Dec-02, to lugnet.robotics.rcx.java)
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