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I'm trying to use the spirit.ocx ActiveX control and VB to program my RCX (I realize this is a NQC newsgroup, but I didn't see one for VB users). My problem is that my infrared tower runs off the USB port, but spirit.ocx exposes only the serial (...) (20 years ago, 6-Apr-04, to lugnet.robotics.rcx.nqc)
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| | Re: New Sensor - ADXRS300-based Gyro for the RCX
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(...) I fixed it right after I posted. Sorry about that.... Cheers, Ram (20 years ago, 6-Apr-04, to lugnet.robotics.rcx)
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| | Re: New Sensor - ADXRS300-based Gyro for the RCX
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(...) Forgot to mention that now I am ready to tackle Legway using the ADXRS300 Gyro, ADXL202 Accelerometer, and a bit of Kalman filtering. Watch out Steve, I am coming ;-) Steve, you did an AMAZING JOB on LegWay!!!.... Cheers, Ram (20 years ago, 6-Apr-04, to lugnet.robotics.rcx)
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| | Re: New Sensor - ADXRS300-based Gyro for the RCX
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(...) ROSCO (20 years ago, 6-Apr-04, to lugnet.robotics.rcx)
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| | New Sensor - ADXRS300-based Gyro for the RCX
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Hi, Here is my prototype Analog Devices-based ADXRS300 Gyroscope sensor for the RCX. Check it out at: (URL) (20 years ago, 6-Apr-04, to lugnet.robotics.rcx)
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| | RE: Bluetooth and firmware query
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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 (...) (20 years ago, 5-Apr-04, to lugnet.robotics.rcx.java, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Bluetooth and firmware query
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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 (...) (20 years ago, 5-Apr-04, to lugnet.robotics.rcx.java, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Re: NQC's future
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(...) I probably botched the DOS serial driver, but you could give this build a try. (Requires at least a 386) (URL) had the djgpp version of gcc lying around from a previous DOS project, so I thought I'd give it a shot. Don (20 years ago, 3-Apr-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Re: NQC's future
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(...) I'm not likely to ever attempt such thing. Sorry about that. Maybe someone else will. John Hansen (20 years ago, 2-Apr-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Re: NQC's future
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(...) Call me kooky, but I'd like to see actual DOS support (ie, non-Win32s specific code) for the serial port. I have an old, trusty Win3.11 laptop that I want to use when taking my RCX out to events, for last minute fiddling. I've found version (...) (20 years ago, 2-Apr-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Re: Mounting PCB boards inside a lego brick
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(...) Is that stuff non-conductive? Ram (20 years ago, 1-Apr-04, to lugnet.robotics.rcx)
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| | Re: Mounting PCB boards inside a lego brick
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Hot glue? (20 years ago, 1-Apr-04, to lugnet.robotics.rcx)
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| | Mounting PCB boards inside a lego brick
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Hi, I am in the process of creating a new sensor for the RCX (more on that later), but I need the sensor to be level otherwise the readings might be off. Since this is my first attempt at creating a sensor (and my first attempt at soldering after a (...) (20 years ago, 1-Apr-04, to lugnet.robotics.rcx)
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| | Re: A/C Adapter for RCX 1.0
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(...) When a fellow MichLUGer brought up the question of hooking up an external power supply to a 2.0 RCX, a lot of these interesting little facts popped up. From the way it sounded, the RCX has a maximum amperage draw, and each side of the bridge (...) (20 years ago, 31-Mar-04, to lugnet.robotics.rcx, FTX)
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| | Re: A/C Adapter for RCX 1.0
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"Purple Dave" <purpledave@maskofdestiny.com> wrote in message news:HvF094.18ED@lugnet.com... (...) RCX, it (...) to (...) first (...) power. (...) of (...) the US (...) that's a (...) The RCX and the train controller both utilize a circuit known as (...) (20 years ago, 31-Mar-04, to lugnet.robotics.rcx)
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| | Re: A/C Adapter for RCX 1.0
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(...) The RCX has a bridge rectifier inside, that converts the AC to DC. It also has a voltage regulator that allows it to take a fairly large input voltage range. You can safely power it with a DC supply, however I wouldn't recommend leaving it on (...) (20 years ago, 31-Mar-04, to lugnet.robotics.rcx, FTX)
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| | Re: A/C Adapter for RCX 1.0
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(...) Does it have a switch, or does it just magically figure out what voltage to supply? (...) I have no idea. You'd really need to ask someone who understands the guts of the RCX. I also have no idea why TLC would use strictly AC adapters when the (...) (20 years ago, 31-Mar-04, to lugnet.robotics.rcx, FTX)
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| | Re: A/C Adapter for RCX 1.0
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I must also be blind. In tiny raised print just above the port on the RCX, it says "9-12V~". Had I seen that I would never have asked my original question in the first place. But I'm still curious about whether the RCX runs on AC or DC power. Does (...) (20 years ago, 31-Mar-04, to lugnet.robotics.rcx, FTX)
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| | Re: A/C Adapter for RCX 1.0
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(...) Wait, are you saying the RCX runs on AC power? You are right that the 12V adapter I got puts out AC. I didn't notice that before -- I thought it was an AC to DC converter. Then I checked my train adapter, and it's identical to the one I just (...) (20 years ago, 31-Mar-04, to lugnet.robotics.rcx, FTX)
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| | Re: A/C Adapter for RCX 1.0
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(...) The LEGO adapters output AC voltage, but most retail adapters output DC, which will burn out your RCX. I've heard that you can find AC-output adapters at Radio Shack, but... (...) Trains still continue to use 9V AC adapters, so buying one (...) (20 years ago, 30-Mar-04, to lugnet.robotics.rcx, FTX)
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