Hardware Design using PIC Microcontroller

In this video, I have spoken about the design objectives of our hardware design.

Let us dive into the circuit design of our prototype board. This prototype board will be later used for the hands-on exercises of the Internet of Things using PIC Microcontroller.

Let us complete the schematic by adding wireless modules, LEDs, Switches, temperature sensors, and LCD.

In this video, I have shown how to place the components after importing the netlist in the PCB editor.

This video shows how to route a single-layer PCB.

This video shows how to generate BoM and Gerber files. For manual etching, I will also print the bottom layer and silkscreen layers. You may download the KiCAD project files from resources.

Let us see how to etch PCB we designed for the prototype board on a copper clad using the toner transfer method and Ferric chloride solution.

Now it's time to do the component assembly and solder the PCB. Later we will see how to perform a basic test of the board.

In this video, you will know how to test the prototype board for functionality by programming the PIC MCU. Check the resources for the firmware and Android App used in the video.

Watch this video to create your first MPLABX Project for PIC MCU and to access the MPLABX Editor options. Keep the device datasheet with you for ready reference.

The oscillator module generates the system clock and peripheral clock. Let us know the clock source types, the PLL specifications and oscillator registers in this video.

Configuration Bits are a collection of binary data located in the Flash program memory of a PIC microcontroller. These bits control the behavior of the PIC MCU. So these bits must be configured properly for the correct operation of the MCU. Watch this video to know more.

This video shows how to easily generate configuration codes in the MPLABX IDE.

General-purpose Input Output ports allow the PIC microcontroller to monitor and control other devices. You will come to know about:

• IO ports in PIC MCU

• Registers associated with the IO ports

In this video, you will understand:

• Driving a pin High and Low

• Producing accurate delays

• Usage of Bitwise operators

This video shows you how to

• Configure IO pins as input

• Reading port pins

• Controlling LEDs with Switches

• Limitations of polling an input pin

The project files are available for download.

This video gives :

• an insight into interrupts in PIC microcontrollers

• Interrupt logic

• Interrupt sources

• Registers to enable and monitor interrupts

In this video, you will learn:

• Enabling INT interrupt on RB0

• Writing ISR

• Determine the cause of interrupt in ISR

• Sharing a data variable between the main function and ISR

In this video, you will understand:

• Peripheral Pin select module

• Registers associated with PPS

• Mapping INT Pin to RB1 and RB2

This video gives you:

• a basic understanding of Interrupt-on-change module

• configuring IOC for RB1 and RB2

• detection of rising and falling edge of the signal

Header files and source files constitute an Embedded C Project. Watch this video to see how to create user-defined header and source files for your project.

This video gives all the basic information for you to interface an LCD with PIC MCU. The demo code is available for download.

Understand the Timer0 module and the registers associated with it.

This demo covers the following for the timer-0 module:

• 8-bit mode & 16-bit mode

• Timer 0 interval calculations

• Timer 0 PPS output

• Timer 0 interrupts

MPLABX IDE project is available for download.

In this video you will understand:

• Timer 1 operation

• Gate for Timer 1

• Timer 1 Clock Sources

• Gate Toggle Mode and Single-pulse mode

• Registers associated with Timer 1

In this video you will know the following:

• How to use timer 1

• Enabling MFINTOSC

• Usage of MF Internal Oscillator to clock timer1

• Usage of Gate Toggle Mode

• Fixing shared resource problem-fixing LCD malfunction

The project files are provided for download.

In this video, you will understand the operation of the timer 2 module, the Modes of operation, and the registers associated with it.

In this video you will know :

• Configuring Timer 2 to generate interrupts

• Usage of MF/16 clock Source

• Free-running mode with Gate

• One-show mode

• Mono-shot mode

MPLABX Project is available for download.

Pulse width modulation or PWM is a commonly used control technique that generates analog signals from digital devices such as microcontrollers. You will know more in this video.

Learn to configure PWM6 module to generate variable pulse width signal of fixed frequency in this video. The MPLABX project is provided in resources.

• What is a Watchdog Timer?

• How can one protect against system failure in case of unexpected events?

• How to use Watchdog Timer in PIC MCU?

• What is Windowed Watchdog Timer?

Get all these questions answered in this video.

In this demo you will know:

• Enabling Watchdog Timer in Configuration Words

• Configuring Watchdog Timer in registers

• Effect of WDT in system Reset

MPLABX Project is available in resources for download.