Embedded Systems

PIC Microcontroller Projects

PIC microcontrollers are a family of specialized microcontroller chips that stands for “Peripheral Interface Controller’. These PIC microcontrollers are the world’s smallest microcontrollers that can be programmed to carry out huge range of tasks. From mobile phones, computer control systems to various embedded systems uses PIC microcontrollers for their functioning.

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A typical microcontroller has a processor, memory and peripherals. The PIC microcontroller is designed to govern the operations of embedded systems in motor vehicles, robots, medical devices, home appliances and various other devices.

PIC microcontrollers are being widely used by hobbyists and engineers, especially in the field of electronics and robotics. The features of PIC microcontroller includes low cost, availability, ease of programming (EEPROM - electrically erasable programmable read-only memory), extensive collection of free application and also loads of information is available on Internet which allows more people to work on this platform.

PIC Microcontroller Technology

PIC microcontroller has a set of registers that functions as RAM (Random Access Memory). The Data space of PIC is mapped with on-chip hardware resources with the help of special purpose control registers. And also PIC has a built-in EEPROM (electrically erasable programmable read-only memory) which eases the reprogramming of the microcontroller.

Every PIC has a stack that saves the return addresses. Earlier PIC versions don’t have a stack that saves the return addresses but this limitation was removed in the later devices. Like other microcontrollers PIC architecture consists of RAM, ROM, CPU, Timers, Counters, and supports various protocols like SPI, CAN and UART to facilitate interfacing with other peripherals.

Architecture of PIC Microcontroller

The PIC microcontroller architecture comprises of CPU, I/O ports, memory organization, A/D converter, timers/counters, interrupts, serial communication, oscillator and CCP modules and their functions are explained below,

  • CPU (Central Processing Unit): The control unit that controls the internal and external peripherals is connected to the CPU and the accumulator is used for storing the results. It is mainly used for arithmetic operations and to take logical decisions.
  • Random Access Memory (RAM): RAM is classified into two banks and each bank consists of many registers. Those registers include Special Function Registers (SFR) and General Purpose Registers (GPR).
  • Read Only Memory (ROM): It is a stable memory which is used to store the data permanently. In PIC microcontroller architecture, the architecture ROM stores the instructions or program, and based on the program the microcontroller acts.
  • A/D converters: This analog to digital converter is used to convert analog voltage values to digital voltage values. A/D module of PIC microcontroller consists of 5 inputs for 28 pin devices and 8 inputs for 40 pin devices.
  • Timers/ Counters: PIC microcontroller has four timer/counters where it has one 8-bit timer and the remaining timers have the choice to select 8 or 16-bit mode. Timers are used for generating accuracy actions.
  • Oscillators: These are used for timing generation. It uses external oscillators like RC oscillators or crystal oscillators.

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Applications of PIC Microcontroller

Today, many engineering students are showing interests towards embedded systems projects which mainly use a microcontroller. Out of all the available microcontrollers, 8051 and PIC are the preferred ones because of their features like Core Independent Peripherals, Low Power Performance, Industry-leading Robustness and Easy Development (Graphical configuration of complex systems).

Some of the projects that you can develop using PIC microcontrollers are:

  • PIC PWM Calculator
  • Library Management System Using PIC
  • Emergency Vehicle Flasher Using PIC16F84
  • Automated Town Water Management System Using PIC
  • A Temperature Data Logger Using PIC EEPROM
  • Gas Sensor Using PIC16F84A
  • Prepaid Electricity Billing System
  • Binary Clock Using a PIC Microcontroller
  • Temperature Controller Using PIC Microcontroller
  • Humidity Controller using PIC microcontroller
  • Car parking monitoring system
  • Solar Energy Measurement System by PIC controller
  • PIC Based Greenhouse Monitoring and Controlling System
  • Electronic voting machine using pic microcontroller
  • Seven Segment Multiplexing using PIC18F4550 Microcontroller
  • Fingerprint Based Biometric ATM Authentication System
  • Android based Remotely Programmable Sequential Load Operation
  • led based rolling display PIC controller
  • PIC controller based security lock system
  • PWM Fan Controller
  • Darkroom Timer using PIC16F84 microcontroller

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PIC Microcontroller Projects
Skyfi Labs Last Updated: 2021-03-17

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