> Recently I designed a board and sent it away to manufacture. > After it was soldered I discovered that not all components work. > Do you know any "good" literature about designing PCBs? What was your problem? - the circuit : use simulation software and/or build your circuit on a (solderless) breadboard first - the PCB did not reflect the circuit : use a tool that warns you when circuit and PCB do not agree (I like eagle) - the PCB layout affects your circuit : that's the difficult one. there is a lot to say about this, specifying your specific problem might help others (who are more knowledgeable than me) to recommend a book. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist