 | | Re: Expanding the available input/output ports of the RCX
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Ram Meenakshisundaram schreef: (...) You could use the sensors that came with the Cybermaster kit, they have a built-in resistor so it should be possible to hook up two of those on one input port and by using RAW values see which switch is pressed. (24 years ago, 10-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | RE: Expanding the available input/output ports of the RCX
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Sure you can try using just three input/output ports, but eventually you end up scaling back you designs. Of course, you can always buy another RCX to increase the number of ports, which will throw you back $200. Adding a multiplexor is such an easy (...) (24 years ago, 9-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Expanding the available input/output ports of the RCX
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(...) [imho] It's sometime very creative to build your own multiplexer as it is a part of the project. [/imho] The site of Michael Gasperi has a lot of informations about those input multiplexer : (URL) (24 years ago, 9-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | (canceled)
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| | Re: Expanding the available input/output ports of the RCX
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(...) How about coming up with creative solutions within the limits of the hardware? In the real world, you can't always make it bigger and better, sometimes you have to do it another way. It's a much more interesting problem to "do it with only (...) (24 years ago, 8-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: compiling
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(...) Never mind everyone got it to work. Patrick (24 years ago, 7-Jul-00, to lugnet.robotics.rcx.legos)
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| | Expanding the available input/output ports of the RCX
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Hi, With only 3 input and 3 output ports, the RCX becomes quite limiting after a while. There are several different solutions to this at various sites. Does anyone know which one is the best out of all of them. I basically looking for good (...) (24 years ago, 7-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | compiling
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I am new to this message board so I am sorry if this topic has already been covered. I have been tring to make, but have been unsuccessful. The OS that I am currently trying to use is legOS 2.3. I keep recieving the error message: h8300-hms-gcc.exe: (...) (24 years ago, 6-Jul-00, to lugnet.robotics.rcx.legos)
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| | Caution when using DCP container constructs
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In Robolab 2.0 the eight DCP container constructs store the raw value of the sensor. This means the value stored is not in rotations, volts, dB, etc. but in a raw measurement of these values. This raw value cannot be easily used with other Robolab (...) (24 years ago, 5-Jul-00, to lugnet.robotics.rcx.robolab)
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| | Minor bug in DCP sound sensor support
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Robolab 2.0 and 2.01 programmer extras has a bug in the DCP sound sensor construct "Wait for increasing sound". This construct sets the sensor type to touch when it should set the sensor type to light. The other sound sensor constructs "Wait for (...) (24 years ago, 5-Jul-00, to lugnet.robotics.rcx.robolab)
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| | Re: legOS battery life code
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Sorry! I forgot to post the code. Here it is: #include <dsensor.h> #include <dlcd.h> #include <conio.h> int get_battery_mv() { long b; int mv; b = BATTERY; b = ds_scale(b) * 0xABD4L; mv = b / 0x618L; return mv; } int main(int ac, char **av) { int b; (...) (24 years ago, 5-Jul-00, to lugnet.robotics.rcx.legos)
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| | legOS battery life code
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Hello, I recently received some code in the mail that when compiled and uploaded to the RCX is supposed to give you the battery life. But when I go to compile it, legOS/util/makelx gives me the following error message: single byte different at (...) (24 years ago, 5-Jul-00, to lugnet.robotics.rcx.legos)
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| | Re: Interactive Robots
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(...) Quite good. Fantastic site, I have just spend a relaxing 30 minutes browsing it. Keep up the good work. Scott A (...) (24 years ago, 5-Jul-00, to lugnet.robotics.rcx)
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| | Re: temperature sensor problem
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(...) No problem. Most of the other environments hide this sort of thing programmer, but this relies on the fact that the programming environment knows how each sensor is going to be used. I didn't think this fit with the C philosophy*, so (...) (24 years ago, 4-Jul-00, to lugnet.robotics.rcx.nqc)
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| | Re: VB Upload Problem
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Well, Chris verifies that he uses variable 23, 24, and 25 to log values in ROBOLAB, and that he also puts in random stuff such as which sensor it is, etc. in the beginning of the datalog. But this still leaves the problem of how to clear the (...) (24 years ago, 3-Jul-00, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: temperature sensor problem
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ahhh... there it is. page 312. thanks. :) i think i saw that 3-digit stuff before and i forgot about it. and thanks for the idea about the until. -ben (...) of (...) (24 years ago, 3-Jul-00, to lugnet.robotics.rcx.nqc)
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| | Re: temperature sensor problem
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Ben, Internally, the RCX only works with integers, but .1 degree resolution was desired for temperature sensors, so the sensor values are actually measured in .1 degree increments. A reading of 70 degrees F is stored as 700, not 70. If you change (...) (24 years ago, 3-Jul-00, to lugnet.robotics.rcx.nqc)
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| | temperature sensor problem
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It's probably something simple and i'm about to embarrass myself, but I'm trying to write the equivalent of an RCX Code temperature sensor watcher with NQC. The motors don't seem to shut off, even when the temperature gets less than 70... (I added (...) (24 years ago, 3-Jul-00, to lugnet.robotics.rcx.nqc)
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| | Re: rotation sensor problem, again...
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I had the same problem and I solved it with a msleep(50). msleep(10) is not enough. (...) (24 years ago, 3-Jul-00, to lugnet.robotics.rcx.legos)
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| | Re: battery life indicator
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if((BATTERY/0x0016)<700) dlcd_show(LCD_BATTERY_X); I always put this line on my programs. BATTERY/0x0016 gives the value in V*100 of all batteries open circuit voltage. <700 is the limit for rotation sensors to work (all the other sensors have (...) (24 years ago, 3-Jul-00, to lugnet.robotics.rcx.legos)
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