This chapter covers main and widely used PIC microcontroller internals (also referred as PIC peripherals in datasheets), like PWM, ADC, etc... For each section, you'll find some basic theory explaining how things works, then a real-life example.

• ADC - Analog-to-Digital Conversion
  
• I²C (Part 1) - Building an I²C slave + Theory
  
• I²C (Part 2) - Setting up and checking an I²C bus
  
• I²C (Part 3) - Implementing an I²C Slave
  
• PWM Intro - Pulse Width Modulation
  
• PWM (Part 1) - Dimming a led with PWM
  
• PWM (Part 2) - Sound and Frequency with Piezo Buzzer
  
• SPI Introduction
  
• USB (Part 1) - Introduction
  
• USB (Part 2) - The PIC as a serial port