If you are a lover of cooking and especially cook with electronics, this will be a document to help you realize your hobbies. The document is full of formulated and tested recipes that you can trust to do just what you need them to do, no matter what your level of expertise. If you are new to electronics then this document will act as a guide to get you started; If you are an experienced electronics manufacturer, it will act as a useful reference. Invite you to refer.