PIC ( 124 ) :

• General information

• David Tait's Links to Internet PIC Resources   
• DonTronics Home Page - PIC microcontroller resources   
• Electr�nica Digital & Microcontroladores - Page (in spanish language) dedicated to theory and practice in digital electronic and PIC microcontrollers.   
• Free Singlechip group - microcontroller articles, information and construction projects   
• Getting Familiar with PICs and PICBASIC -�a 19 page booklet in pdf format   
• Getting Started with PICs - Microchip's PIC16C84 is a general-purpose, low-cost, 18pin, 8bit microcontroller with the capability of in-system software downloads to its on-chip EEPROM memory. What you will need to do is build a very simple, low cost parallel port programming adapter to connect your PC to your target board, enabling the PC to re-program your PIC16C84 in-system.   
• Introducing the Microchip PIC - Many people would like to get started with microcontrollers, but don't know how to begin. That's what this page is all about -- how to get started.   
• Introducing the Microchip PIC18F252 - Many people would like to get started with microcontrollers, but don't know how to begin. That's what this page is all about -- how to get started. With a microcontroller you can do things that would be difficult to do with discrete logic.   
• Low-power operation is a state of mind - Achieving low power requires a certain mindset. The straightforward way to turn the heat down is to re-evaluate clock sources or to reduce the power-supply voltages. Another equally effective approach is to operate with a partial or a complete controller/processor-shutdown mode. But if you combine these techniques with execution time and a little intelligence, you can easily tackle your most challenging power-conservation problems.   
• Microchip - company which makes PIC microprocessors   
• Microchip Net resources - very good link topic on PIC microcontrollers and related topics   
• Microchip Reference Sheets   
• Moving a Design from the PIC16C84 to a PIC16C554, 556 or 558 - This discussions focuses how to move a design from a 16C84 platform to a 16C55X processor. The reason to do this is that 16C55X one time programmable devices (OTP) are very cheap.
• Myke Predko's PIC and Microcontroller Reference Page - information about PIC book and some useful resources   
• PIC16/17 Microcontroller & BASIC Stamp   
• PIC16C84 Features   
• PIC Links - links to lots of useful information   
• PIC Programming Home Page - informaiton on PIC microcontroller, pic projects and basic electronics   
• Pic & Linux - also available   
• Which programmer to choose?   

• PIC beginner projects

• CTEC1630 Computer Systems Design Home Page - Student projects and laboratories using PIC microcontroller.   
• First PICMicro Project   
• Getting Started with PIC Programming - Here are 4 steps to help you get started with PIC programming.   
• Interfacing & Programming PIC16F84 in C - Learn and experiment yourself to see how to write a simple program using C language for the PIC16C84   
• PIC Traffic Light   
• Speaking Doorbell using a PIC microcontroller - SpeDoB was designed and built to gain experience with the PIC microcontroller. This doorbell uses a speech recorder integrated circuit (ISD series) to play back 3 pre-recorded "there's someone knocking on the door" messages. It's a very easy and simple project to build, ideal for beginners!   
• Your first PICMicro Project   

• PIC computer hardware interfacing projects

• Bit-Banging Serial Interfaces for the Low-End and Mid-Range PICMicros   
• Build your own "2-Wire LCD Interface" using the PIC16C84 microcontroller   
• DIY MIDI Controllers using PIC Microcontrollers and Basic Stamps - describes how to generate MIDI signals and how to read sensors like potentiometers and piezo transducers
• Interfacing the PS/2 Mouse - contains PC mouse protocol information and some examples how to interface it using PIC microcontroller   
• ISAPIC - ISA bus to PIC microcontroller interfacing idea   
• Keyboard data-acquisition system is cheap and simple - PIC12C67 based 8 bit ADC circuit which connects to PC keyboard and output PC keyboard keypresses   
• Microcontroller discerns addresses in RS-485 systems - One of the many benefits of using the RS-485 data-interface system, unlike the RS-232 system, is its ability to implement multidrop networks. Such networks usually carry 9-bit data words, in which the ninth (parity) bit identifies each word as address or data. When using small microcontrollers without a hardware UART, designers must decide whether to add an external hardware UART or to configure a UART in software. Ths circuit uses a PIC16F84 microcontroller and MAX3100 UART to impelement 256 address RS-485 bus transceiver.   
• PIC Specific RS232 IO - There has been a lot of confusion on how the RX or TX pins should be set with reguard to TRIS on the PICs with hardware USARTs especially with reguard to makeing them work in interrupt mode. This document is an overview to the suitable technologies specific to different PIC models.   
• PS/2 Mouse/Keyboard Protocol - This article describes the protocol and shows how to implement it using PIC 16F84.   
• Synchronizing controller detects baud rate - a simple and inexpensive implementation using an eight-pin 12C508 controller (Microchip Technology, Chandler, AZ) provides both bit-rate detection and a synchronous, appended-clock output from an asynchronous input-data stream.   
• Using an LCD's User Defined Character Generator for Graphics Animation - project based on PIC, PICbasic and Hitachi 44780 LCD   
• sing a PIC microcontroller with the PC's serial port (RS232 COM port tester) - CoPoT is a simple circuit using an 8-pin PIC microcontroller to test the data TXD, RXD signals and RTX,CTS handshake lines. It does this by pinging back the next ASCII character that was received, and generating a square wave output on the RTS line when CTS is active. The main aim of this project was to learn how to interface a microcontroller (without an integrated UART) to the computer's serial interface.   

• Other project pages

• Adam's micro-resources - PC keyboard and mouse interfacing   
• DeeT's PIC Page: PIC peograms - video clock, video pong, guitar tuner, MIDI sender, DTMF encoder   
• Digital Frequency Synthesis - accurate tunable sine-wave generator, using just a PIC   
• DIY MIDI Controllers using PIC Microcontrollers and Basic Stamps   
• Electronic Altimeter - This design uses a PIC16F877 to measure the output of a temperature sensor and an absolute pressure transducer to measure altitude.   
• Eric Smith's PIC Projects - closed caption decoder, video, DTMF, monitor tester, remote control   
• Fumil's Digital Stuff - christmas lights, smart lock and 12C508 PIC routines for communication on RS232 standard   
• Heart beat monitor using a PIC microcontroller   
• Holiday map using a PIC microcontroller - HoMaD allows you to illuminate all your holiday destinations on a world map, although you could even impress your boss by using it to display all the firm's worldwide subsiduaries. The hardware consists of a PIC microcontroller and a couple of LED drivers from Maxim , controlling up to 128 LEDs (the circuit can be easily extended to drive an almost unlimited number of LEDs).   
• How to generate video signals in real-time using a PIC16F84 - generating video signals in software   
• Kelly Kohls, N5TLE Homepage - DMX 512 Light control circuits including 16 channel 0-10volt demultiplexer based upon a PIC16C76, also a Analog to DMX512 multiplexer based upon a PIC16F876   
• Make noise with a PIC - Building a stable noise generator for audio-frequency purposes requires only a few components. This circuit relies on linear-feedback shift registers and some simple software.   
• Projects for Students and Hobbyists   
• Mechanically Scanned LED Clock "Propeller Clock" - This is a clock circuit using moving LED display. Seven light emitting diodes spin, giving the illusion of numbers in the air.   
• Microchip Net resources - PIC project link list   
• MIDI-to-analog switch trigger box on PIC16C84 - a 16C84 program to receive MIDI note messages and activate trigger outputs for various applications   
• Mobile robot Based on PIC16C84 and Posit 1.0 - This page contains the robot software, circuits and a very short description.   
• Myke Predkos' PICMicro Button Debounce Article   
• NCO technique helps �C produce clean analog signals - method for producing an analog voltage from one digital output of a PIC microcontroller   
• Ohjelmia 16f84:j�� - software for PIC 16F84, text in Finnish   
• PIC 16C63 Midi controlled Light dimmer   
• PIC Based Serial Port Servo Controller - This Servo Controller uses a PIC16F84 microcontroller from Microchip to drive servo motors and digital outputs. It receives commands from a host computer via a standard RS232 serial interface. This circuit supports 4 servo motors and 4 digital outputs. Circuit can be modified for 8 servo motors.   
• PIC C and Assembler Resources - Examples for use with the C2C or CCS Compilers   
• PIC debugging routine reads out binary numbers   
• PIC / Ubicom Dev'rs - communication circuits using PIC, encryption, interfacing, Internet applications using PIC and many other PIC circuit   
• "Pinewood Derby" style race timer   
• PIC16F84 Based Morse Code Reader - takes sound input and outputs test to LCD screen   
• PIC16C84 stuff - micro kernel, robot and C compiler for Windows   
• Pick�a�Peck�of PIC's�Library - many PIC project documents   
• PIC Microcontroller Projects - collection of projects and tutorials   
• PIC Page - serial communication and PC keyboard emulation routines   
• PIC plots pixels sans controller - grahical output from PIC to grahical LCD screeen    Rate this link
• PIC-Tock - video clock using a PIC16C61   
• PIC Vacuum Fluorescent Display Interface   
• Picxie - Animated LED Signboard - check also   
• Pseudorandom digital white noise generator for PIC series - designed for PIC12C508   
• Rickard's microcontroller projects - mechanically scanned display stuff and software generated video using PIC, includes video games like Pong and Tetris   
• Simple logic analyzer pushes microcontroller to its limit - A simple logic-analyzer design is compatible with all versions of Windows and pushes the PIC 18C252 chip to its speed limit to achieve a 1-MHz sampling rate.   
• "Simple-Simon" Game using a Pic Microcontroller - MeGaM is based upon the early 80's "simple-simon" game. The opponent (microcontroller) slowly builds up a random LED sequence, which the player has to repeat step-by-step by pressing the corresponding push buttons. The hardware consists of a PIC microcontroller which controls the push buttons, sound, level of difficulty and LEDs, and a noise generator which provides the mechanism to produce a random number.   
• Speaking clock (English & German) using a PIC microcontroller - SpeClo was designed and built to be used by the blind. Its purpose is to provide a relatively easy way for ascertaing the time of day by whistling, and can be configured to speak English or German! Two versions of this project have been built. One uses a PIC microcontroller and can be activated in a single room, whilst the other version uses a ST7 microcontroller and can be activated in a total of eight rooms.   
• The Official EPE PIC Source Code Page - all the EPE PIC Projects source code is available here   
• Use a PIC for automatic baud-rate detection - Automatic baud-rate detection is desirable in many applications. Microchip's (www.microchip.com) standard USART module that the company embeds in most of its PIC microcontrollers lends itself to a simple and easily implemented automatic baud-detection scheme. This example is designed for PIC18FXX2 in mind.   
• Use power line for baud-rate generation - One cost-saving measure associated with 8-bit embedded microcontrollers is to use a resistor-capacitor oscillator. These RC oscillators are inexpensive, but the trade-off is low stability with temperature and voltage. In these cases, you can find a low-frequency, stable clock source and use it to calibrate a baud-rate generator or event timer. One source of a low-frequency, stable clock is the line voltage. This voltage is a good source 50- or 60-Hz frequency that you can easily interface to the microcontroller's 16-bit timer. By counting CPU cycles for a half cycle of the external clock, you can determine the frequency of the microcontroller's internal RC oscillator and calibrate the baud rate.   
• Using PWM to Generate Analog Output - Pulse Width Modulation (PWM) modules, which produce basically digital waveforms, can be used as cheap Digital-to-Analog (D/A) converters only a few external components. A wide variety of microcontroller applications exist that need analog output but do not require high resolution D/A converters. Some speech applications (talk back units, speech synthesis systems in toys, etc.) also do not require high resolution D/A converters. For these applications, Pulse Width Modulated outputs may be converted to analog outputs. Conversion of PWM waveforms to analog signals involves the use of analog low-pass filters. This application note describes the design criteria of the analog filters necessary and the requirements of the PWM frequency. Later in this application note, a simple RC low-pass filter is designed to convert PWM speech signals of 4 kHz bandwidth.   
• WhiDet - this circuit uses digital techniques to measure and decode the input signal to detect a whistle. This simple circuit is built using PIC and a handful of analog components.
• �C-based one-shot has wide range - �C-based, digitally programmable, monostable multivibrator based on PIC16C54   
• Yusoft PIC Microcontroller Links - Microcontroller projects, links and information   

• Programmers

• 16F84 Ohjelmointilaite - This is a programmer design for PIC 16F84 which is also suitable for laptop computer (uses external power supply). This is a variant of a well known jdm PIC programmer (works with same software). The text in this document is in Finnish.   
• Build Your Own Programmer for the PICMicro with the "ELCheapo - serial port programmer for PIC 16C84   
• Classic PIC 16F84 Programmer - The design is by David Tait. This circuit connects to PC parallel port. There is circuit diagram, copper layout and programmign software (DOS and Windows).   
• Easy PIC Programmer - This page describe how to make the most easy PIC Programmer. The Programmer do need external power supply (stabilized). And it use only one resistor. This circuit connects to PC serial port and programs PIC 16C84.   
• "Fluffy" - A Scenix (and PIC) Programmer - a complete hardware and software system that allows you to use a 16F84 to program a SX microcontroller   
• NOPPP, the "No-Parts" PIC Programmer - NOPPP is a simple programmer for PIC16C84, PIC16F83, and PIC16F84(A) microcontrollers. It attaches to the parallel port of a PC. Plans were published in Electronics Now Magazine, September, 1998, and are included in shorter form in the downloadable ZIP file.   
• PIC16C84 programmer - connects to PC serial port   
• P16PRO PIC and PICALL programmer offical Home Page - programs PIC12C5xx, 16F84 and many other PIC models   
• P16PRO & PICALL PIC programmers - You can use P16PRO, David Tait's or almost all other printer port based hardware schemes by using P16PRO's Hardware setup feature. PICALL hardware was designed and optimized for programming PIC microcontrollers,but it is also possible to program other devices with it. With new software and PICALL hardware you can program ATMEL's AVR microcontrollers,Scenics SX and serial EEPROMS.   
• Pic24C�programmer - a Pic 16C/F84 ,24Cxx Combi programmer   
• Pic-piirillisten �lykorttienohjelmointilaite - programs smartcard based on PIC chip, text in Finnish   
• PIC-Programmer 2 for PIC16C84 etc.   
• PIC 16c84/16f84/24c16 programmer for Linux (& DOS) - It is possible to program PIC's and eeproms with linux. There exists a couple of programs for parallel port programmers, and one for both serial and parallelport programmers (prog84). This is an improved prog84 to work better with Intel hex files and added the ability to read the PIC and dump the contents in an 8 or 16-bit intel hex file. This siftware with suitabke circuit programs 16c84/16f84, 16C6x/7x/923/924, 16f87x and 24c16 (and maybe 24c65/24c08?). The software comes with source code.   
• PIC and serial EEPROM programmer - programs 16C84 and 8 pin serial EEPROMs, zipped file   
• PIC-Programmer 2 for PIC16C84 etc. - This Programmer is powered by the RS-232 and programs PIC12C5XX, 12C67X, 24CXX, 16C55X, 16C61, 16C62X, 16C71, 16C71X, 16C8X, 16F8X and ISO-CARD's with ASF. This circuit uses DOS progeramming software (runs also under Windoes). This page also contains also links to some other very simple programmers. Utilities now work on Dos, Windows 3.1, Windows 95, Windows 98 and are expected to work on all other operating systems.   
• PP06 PIC Programmer Software - PP06 is an open-source Production programmer for Microchip's PIC micros. Specifically designed for use in factory in-circuit programming, and development of master/slave systems it supports many pics,and is easily extended to different hardware. This softare programs most 12&14 bit PIC's, flash and eprom (78 types). Software supports various hardware (all David Taits original hardware types + others). Software is available for Windows, Linux (command line and KDE), and DOS.   
• The PIC programmer II by Jens Madsen - This circuit programs PICs 12C5XX, 12C67X, 24CXX, 16C55X, 16C61, 16C62X, 16C71, 16C71X, 16C8X and 16F8X, software is available for Dos and Linux   
• Wouter's In-System Programmer for the PIC 16f84 - 16x84-based in-circuit 16x84 production programmer   

• Programmer accessories

• Laptop Computer Serial Port Power Booster   

• Software tools

1. C2C Compiler - free PIC 16C84 C compiler for Windows 95   
2. C2C++ C/C++ compiler for PICmicro and Scenix   
3. CC5X C Compiler - C compiter for PIC, free edition available   
4. Comparison macro for PIC processors   
5. Crownhill PICBASIC - PICBASIC Compiler allows you to write your code in the simple to learn, yet powerful, language of BASIC. This pages has links to download free PICBASIC Lite and information on commercial PIC Basic Pro compiler.   
6. GNUPIC - an entire suite of PIC development tools freely available in source code   
7. High Tech Horizon's filelibrary - PIC utilities and source code   
8. IC-Prog Prototype Programmer - This software package allows you to program very many types of serial programmable Integrated Circuits using Windows 95/98/NT/2000/ME. This software programs 12C508, 16C84, 16F84, PIC 16F877, 24C16, 24C32, 93C46, 90S1200, 59C11, 89C2051, 89S53, 250x0, PIC, AVR , 80C51 etc. when used with suitable programming hardware. This software supports many programmer types of programmers which connect to PC parallel port and some popular serial port devices (JDM type).   
9. Just Another Language (JAL) - compiler for a pascal-like high level language for the PIC 16c84/16f84 and Scenix SX18/SX28, comes with library and a few ready-to-run examples, runs on DOS command line and Linux   
10. PIC16C84 C compiler for Windows 95 - free compiler with IDE for Windows 95   
11. 12C5XX timign routine - this procedure permits obtaining timings between 7 and 196095 microseconds, when the PIC 12C58XX is programmed to work with it's internal oscillator or with an 4MHz external oscillator   
12. P2C Pascal-compiler - This is a Pascal compiler for Microchip (PIC) and Scenix (SX) microcontrollers. It works under MS Windows 95/98/ME/NT/2000/XP and has a built-in user interface.   
13. PIC16C84 Compiler - compiler translates the SIL program into PIC16C84 assembly language, description is also available in   
14. PIC16F84 Programmer-Software   
15. PIC Delayer - program that calculates and generates delay routines for you, works under Windows   
16. Pico-C compiler for PIC16C84 processor   
17. Posit 1.0 - Multitask Microcore for PIC16C84 based systems   
18. Source Code from "The Pic Source Book" by Scott Edwards - collection of assembly language routines based on the instruction set of the Basic Stamp single-board-computer (write your intended Basic applications directly to PIC assembler)   
19. TX/RX RS232C - procedures to send and receive data in a RS232C compatible format using PIC 12C5XX microcontroller, used protocol is 8N1 (8 data bits,no parity bit, 1 stop bit) and the baud rate is 300bps (can be adapted to other baud rates also)   

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