Based on their long experience in developing projects using PIC microcontrollers, the authors consider this topic from the point of view of practical designers. All issues related to peripheral devices are touched upon, for interaction with which, in fact, microcontrollers are intended. In particular, analog peripheral modules, the MPLAB tool environment, as well as the debugger and demo boards are described. This book is designed for those who already have experience with PIC microcontrollers and are focusing on new developments in recent years.