hi http://www.techno-stuff.com/3wire.htm this interface is analog interface. where as parallax sensor, allthough 3 wire is digital sensor. It return...
Is there any functional difference between these two sensors? It appears in their description that they are identical with the exception of the operating...
No there is no functional difference except the frequency. Ideally higher frequency should have higher resolution, but since RCX does not have high-resolution...
Has anyone on this board taken up the task of writing legOS IR code for the I2C interface? I've checked on lugnet and there doesn't seem to be much activity...
I started looking at the current BrickOS IR code (h8 headers and lnp- logical.c), I also found a pre-LNP IR serial interface on the RCX Internals page that...
Nitin, What are the voltage requirements to drive the motor mux? The docs just say up to 35v. If I'm only using two outputs will 12v or 18v work? Using 12v I...
My search for direct IR in BrickOS lead me be back to an early version of LegOS v0.7 which had direct pre-LNP IR functions. This seems like a logical route as...
I should have mentioned I'm using the I2C interface to drive the motor mux, the only I2C device I have the moment. :) ... functions. ... pulled ... getting ......
Hi Matt, if you are using lego motors then 9 v should be good enough. if you see erratic behavior, make sure that you are using low power IR mode on your RCX...
Hi Nitin, Still getting erratic behavior with low power IR. Is there any significance to the timing of send/recv with I2C? I found that almost always the...
Nitin, Here is the NQC code I've been using in Bricx Command Center to test the I2C interface and the Motor Multiplexor. Any assistance would be greatly...
I added this code: int temp=0; // global in task main() I added: SetUserDisplay(temp, 0); in Check_alive() and Set_motor() I added: temp = Message(); right...
Hi Nitin, Wanted to post a quick update -- I think I have everything working properly. It seems increasing the distance of the I2C IR interface from the RCX's...
Hi! I'm trying to get the RCX-I2C communication to work with lejos, but so far without success. I'm using the program below to send the ALIVE byte to the...
Hi, I have some questions about the 4-stud LEGO connectors that lie on the ends of standard LEGO wires. First, so we don't get confused about orientation,...
... the ... are ... which ... to a ... of ... connect ... You have to look closely at what is happening. Start with a connector and wire. If you hold the...
We have a problem: The mux doesn't seem to switch at all. When connected to the RCX, the three light sensors connected to the multiplexer are all turned on,...
Hello Nitin I hope that you are planning to offer NXT compatible products.I thought that using the USB port on the NXT ,through a USB to I2C bridge, would be...
Hello Jim, Sure! We are planing to offer sensors and accessories for NXT. However, LEGO has not released several technical details regarding the interface yet....
Hello all, With the announcement of LEGO Mindstorms NXT Toolset, the excitement and curiousity is in the air!! We're looking forward to offering sensors and...
Hello Gabriel, We have chosen to make open sensors mainly because unavailability of electric plates. Since you have electric plates and are willing to house it...
Hello Nitin, I'm just trying your USPD's with an active sensor multiplexer I ordered in 2004. In your description of the active sensor multiplexer I found,...
All, I am just learning to program with NQC. I have fiddled with the mindstorms software for several years, trying to make it do more complex things. However,...
Has anyone experienced problems with static electricity and the mindsensors products? I have had major problems with static blowing away electronics,...
Does anyone have any working RCX code for communicating with the mindsensors USR40C sonar module using the mindsensors RCX-I2C? I can't seem to get reasonable...
