PIC Tutorial page


PIC Tutorial information on compilers, programming, device information, peripherals, protocols and techniques.

In the Devices section there is a tutorial on the 12F675 which is also useful for the other PIC devices since the 12F675 has many of the same internal peripherals as the other PICs.

In the Hardware section there is a short introduction to PIC microcontrollers which summarizes the main peripheral blocks so that you can get familiar with the PIC micro more easily.  

It gives a useful overview of each block. You can also find notes on ICSP there.

The Software section has a short introduction to C programming and there is a useful guide to I2C in the Protocols section.

The Techniques section collects together circuit examples and links to projects that use a specific peripheral block.

PIC Tutorial Links


Project Techniques

Multiplexing [8x8 dot matrix ]
Timer 1 [ frequency counter ]
CCP (capture) [ Ultrasonic ]
Software Tri PWM  [ rgb led ]
Soft PWM [ pic-pwm-interrupt ]
Ultrasonic range finding [ pic-sonar ]
Comparator [ comparator ]

Articles

Frequency counting
[Article]

Reciprocal Frequency counting
[Article]




Devices

A tutorial on the 12F675

Although this device is small (an 8 pin chip) it has lots of peripherals (many more than the 16F84) which are used in different ways in this pic tutorial. It  starts off showing you simple projects progressing on to more interesting ones which use each peripheral.  

It should give you a solid start in using any PIC microcontroller as you can transfer the techniques learned here to any PIC device.

16F84

An introducrory circuit for the 16F84 with C program source.

Hardware

An introduction to PIC microcontrollers.

Summarizes the main peripherals of the mid-range PIC micro and details of devices used in site projects.

Interrupts.

Describes what they are and how to use them.

ICSP - In Circuit Serial Programming.

Description of ICSP signals and typical circuit connections for programming a pic micro.

Software

A Quick PIC Compile tutorial for the MikroC compiler.

A very quick compilation tutorial just to show how to re-compile files found on this site that use the mikroC compiler.

Protocols

How I2C works.

A PIC tutorial showing signals and use of the I2C protocol.

How SPI works.

A short tutorial showing signals and use of the SPI protocol.

How RS232 works.

Shows how RS232 works at the physical bit level describing bit details and showing signals you can expect to see at the microcontroller pins.

Using and setting up RS232 in a microcontroller system.

Some simple rules to follow to ensure your RS232 system works.

Techniques

Using PIC micros as frequency counters (with project links).

Shows you what frequency counting is and how to use PIC micros to obtain a frequency measurement using Timer 1.

Using PIC micros as ultrasonic range finders.

Here you can create an ultrasonic range finder and learn about it (general information on ultrasonic range finding is contained within the project page).

Also shows you how to use the PIC CCP module in capture mode.

Software Tri PWM

A project that creates three interrupt driven software pulse width modulators for driving an RGB tri color LED.  Its not a full implementation as each PWM has the same period but it works well.

Multiplexing

Two projects; the above is for multiplexing an 8x8 dot matrix display and this for multiplexing a seven segment display.

Pulse width modulation

PWM what it is and what it's for.

Soft PWM

How to create a Pulse Width Modulation signal without an internal PWM peripheral.  Two methods 1st - one timer, 2nd - two timers.

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