I would like to build a small circuit that would be similar to a BASIC stamp 1. Something which I can connect to a 9v battery and then program in ASM to turn 8 different LEDs on and off (or anything really). Thats all. I've roamed over 100 PIC links this week and haven't found anything this simple. Andy --------------- First of all, sorry for the 17.3 KB bandwidth. I beg your pardon if I am doing something wrong. I attach a zip containing a *.bmp for the schema and a *.dfx for the PCB. C1=C2=15pF, R1=1K,Y1 as needed(<=10MHz). Note that there are only one pin for every RA0-RA4, but there are *three* pins for RB0-RB7 (RBi, VDDi, VSSi) due is a board designed for an eigth servos controller. Do not assemble the J4 and J5 pin sockets if you don't need to feed any device from the board. The board has also a 7805 so you can feed it with a 9V battery to J1 with no trouble. It has a reset button, just in case. And I made it using the Protel 99 demo package (www.protel.com) to check if it will be useful for me before buy it. It works fine!! Hope it helps, keep on PICing Sebastian PS1: PLEASE, check all twice, I did not assembled nor tested the board yet, is only the PCB version of my actual 'solder&wire' protoboard, that works fine. If some piclister wants to 'tamperproof' the schema and the board, all flames will be welcome, and then when I've learned something more, all those flames will be >> /dev/null ;-) PS2: Jory&partner.. is there some written on unwritten rules about attachments? I've sent this before asking for permission.. Attachment converted: wonderland:picboard.zip (pZIP/pZIP) (0000BD77)