 | | RCX infrared broken -- what now?
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I recently dug my old MindStorms sets out of storage after about five years of inactivity. Naturally the RCXes (I have three) all needed to have their firmware re-installed. I was able to successfully refresh two of the bricks but not the third. I (...) (16 years ago, 20-Aug-08, to lugnet.robotics.rcx)
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| | Re: Problem to send long messages from RCX to PC via com Hack
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(...) Dear Matthew I have found the problem. It was in kernel\lnp-locical.c -> cheking the echo was the problem solution: echo OFF it is a rough solution, but it works changes 1) rx_handler(void) ... // echos of own bytes -> collision detection // (...) (16 years ago, 29-Jun-08, to lugnet.robotics.rcx.legos)
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| | Re: Problem to send long messages from RCX to PC via com Hack
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I don't know if this is would be of any help, as it uses a different approach, but I thought I'd pass it along anyway.... Bi-directional Bluetooth to IR translator - (URL) (PDF format: (URL) ) While this solution doesn't allow both the serial and IR (...) (16 years ago, 28-Jun-08, to lugnet.robotics.rcx.legos)
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| | brickOS is slower than NQC for sending message
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I tested two ways with brickOS and NQC, source as below, you will find the NQC can only send about 80 messages in 4s, brickOS can send all 255 messages, but need 20s, in other word, NQC needs 50ms for sending a message, or brickOS needs above 100ms (...) (16 years ago, 26-Jun-08, to lugnet.robotics.rcx)
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| | Problem to send long messages from RCX to PC via com Hack
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Hi, Once again i am back about RCX and BT-Connection. Receiving messages from the PC via BT to the RCX is OK. But if I send messages from the RCX to the PC with 4800 Baud i get only 4 Bytes. So I go back to 2400 Baud, forget BT and make a serial (...) (16 years ago, 10-Jun-08, to lugnet.robotics.rcx.legos)
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| | RE: multiplex 2 touch sensors on a single RCX port
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Sorry, I don't mean the duration, not hysteresis. -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of Elizabeth Mabrey Sent: Monday, June 02, 2008 6:11 PM To: lugnet.robotics.rcx....lugnet.com (...) (16 years ago, 3-Jun-08, to lugnet.robotics.rcx.robolab)
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| | multiplex 2 touch sensors on a single RCX port
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I have these 2 touch sensors multiplexing on the same input port. Their raw values are 47 and 39. I tried to set up 2 separate events, one for the range of 45 to 50 and another one for 35 to 40. However, the one for the lower feedback often set off (...) (16 years ago, 2-Jun-08, to lugnet.robotics.rcx.robolab)
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| | Re: Remote control RCX by mobile phone
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Dear Zhengrong Zang I don't thing that this will be work because as far as i know mobile phone's using the irda protokoll like on the pc's to comunicate to mobilephones and other devices. The protokoll is the same: baud parity and stopbit but it (...) (16 years ago, 30-May-08, to lugnet.robotics.rcx)
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| | Re: RCX Serial Hardware Hack
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Dear Claude (...) A: Thank you for finding the PDF. (...) A: I will check ( measure the Voltage on the IF LEDS) should be approx. 9V betweem LED and Transistor if everything is off. (...) A: Now i had success . It works. (...) I have allready done (...) (16 years ago, 29-May-08, to lugnet.robotics.rcx.legos)
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| | Re: RCX Serial Hardware Hack
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Dear Matthew (...) A: Now it works with 4800 baud via bluetoothconnection . There was a couple of Problems. 1) At first i tried with the USB Tower but i coult only swith to 4800 bauds but there is no possibilty to change parity. 2) With the serial (...) (16 years ago, 29-May-08, to lugnet.robotics.rcx.legos)
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| | Re: RCX Serial Hardware Hack
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"Claude Baumann" <cbaumann@ci.educ.lu> wrote in message news:K1E031.y4@lugnet.com... (...) I was able to retrieve it from archive.org - (URL) . (16 years ago, 28-May-08, to lugnet.robotics.rcx.legos)
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| | Remote control RCX by mobile phone
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I try to make a appli that executed in mobile phone, it can control RCX. The mobile phone's SDK provides class RemoteControlData with some methods as below: setPulse(int leader_on, int leader_off, int trailer_on) leader_on: start bit High period (...) (16 years ago, 27-May-08, to lugnet.robotics.rcx)
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| | Re: RCX Serial Hardware Hack
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(...) The carrier should be quiet in any case, because it disturbs the TX signal. (...) We tried this,but it didn't work. Why, because the transistor will drain some current, if the emitter has positive voltage and the base goes low. If the carrier (...) (16 years ago, 24-May-08, to lugnet.robotics.rcx.legos)
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| | Re: RCX Serial Hardware Hack
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Glad to hear it is working--thank you for the update. If I may ask, I have a few questions-- * So if I understand these posts correctly, 4800 baud now works with the IR connection and not just with the hardware hack? *A couple posts from Dick Swan (...) (16 years ago, 24-May-08, to lugnet.robotics.rcx.legos)
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| | Re: Success
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Hi I have implemented the stuff // and set the port6<7> pin LOW. Now the upper PNP transistor isn't conducting anymore. Now TX and RX works Here are the program #include <lnp.h> #include <conio.h> #include <string.h> #include <lnp-logical.h> (...) (16 years ago, 20-May-08, to lugnet.robotics.rcx.legos)
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| | RCX Serial Hardware Hack
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Hi As allready described in a other thread i have build a bluetoothconnection between pc and the RCX. There is one thing that the serial bluetooth is only available to tx/rx with a minimum from 4800 baud. At first i compiled brickos 0.9.0 with (...) (16 years ago, 20-May-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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(...) I have found the thread, its in (URL) is a also a 2 thread in (URL) the usb tower dll. and a c program called joybricxsrc.zip I looked short in the header files LEGOUSBTowerioctl.h and there is a posibility to set the speed #define (...) (16 years ago, 3-May-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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.Sorry for the delay Now i am in italy , triest. so i just do a short look in the messages. Thanks for the answers. In meantime i recogmised too that there is no serial baud rate change in the dll for the usb. I think i have something at home what i (...) (16 years ago, 3-May-08, to lugnet.robotics.rcx.legos)
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| | RE: brickos 090 problem no program download with CONF_LNP_FAST
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Somewhere in the bowels of the header files within the RCX SDK is a list of "IODEVICE control commands" which does include description of messages required to change baud rate on the USB tower. I am assuming you're not using the LEGO Windows DLL (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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Hello Bernhard, (...) I just checked the source code. There is no speed setting for usb tower in the code. If you look into firmdl3 you also find that fast mode is disabled for USB, because it doesn't work. I think the USB tower sends at 2400 baud (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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