I have done a traffic light for my model railroad with 12F629, a changing illumination for a model house with TV set illumination :-) and at the moment I am working on an automatic turnloop switch (changing the polarity in the turnloop measuring the current in the loop). regards Enrico -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist