|  |  | Hi To solve your problem you don't need to learn s19 code. You must only something like encoder0_low_threshold= 75; in your program (c and nod s19). You must only replace the 0 (zero) according to your used analog port. For further information refer (...)   (24 years ago, 22-Aug-01, to lugnet.robotics.handyboard) 
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