Hello friends! In the previous tutorial, we discussed getting started with PIC microcontrollers and the minimum circuit needed to run a PIC18F452. Today, we will examine its ports, timers, communication interfaces and other useful hardware functions. We will refer to the 40-pin PDIP package throughout this lesson. The signal names are more important than the physical pin numbers, because other packages can place those signals differently. Always match the package drawing to the component you actually have. The main goal is to help you allocate pins and select peripherals for a project. We will also work through timer, ADC, PWM and baud-rate calculations so the datasheet values become practical design tools rather than a list of unfamiliar abbreviations. Figure: PIC18F452 reference for port ...