| | | (...) Relay bricks. That way you can run a Lego train without having to suck power from the RCX. (...) Might be a bit pricey, but it's definitely a good idea. (...) Maybe, but maybe also a breakout box for sensor inputs? (...) And this should (...) (25 years ago, 22-Dec-99, to lugnet.robotics)
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