LEARN HARDWARE FIRMWARE AND SOFTWARE DESIGN – BRIEF DESCRIPTION

Edition 5 of LHFSD [ISBN 978 606 92185 32] has been specifically designed to become an educational/pedagogical manual for teachers, instructors, and also for ordinary citizens. Have no fear, dear readers: LHFSD is still addressed to beginners, since EVERYTHING starts from a white page, and then things are developed/explained only gradually [and logically], step by step. Our book continues to deliver exactly ...

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PIC LICK-1 using PIC16F84 Microcontroller

This module is so simple, I'm surprised it has not been thought of before. You can fit a PIC16F84A or PIC16F628 and it becomes a "buffered PIC chip." Look at the circuit diagram first to see what the module is doing. It's buffering 5 of the input lines with a 1k resistor and buffering 8 output with a driver (actually a sinking) transistor. If you fit a PIC16F628 chip, you can use the RC oscillator inside th ...

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Simple RS232 to logic level converter for PIC microcontroller

The circuit shown will convert logic level voltages to and from RS232 serial voltages levels. For basic serial comms between a Microchip PIC and a PC or other device you generally only need to connect the Gnd, Txd and Rxd lines. This little circuit will work with a supply voltage of 3.3v to 5v making it ideal for interfacing with a PIC  It derives the negative supply for the RS232 transmit data from the ser ...

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Breadboard using dsPIC30F2012 microcontroller

Bernard introduces us to the dsPIC microcontroller. He shows us his Arduino like project board for a dsPIC and gives advice on software development tools. This article was submitted by Bernard Klinc as part of the “Hobby parts for articles” program. Bernard received a graphic LCD module for this great article. You may remember Bernard from his previous Accelerometer Based Mouse article and video. This thing ...

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28 Pin PIC Terminal Development Board

Replacement: None. We do not have a direct replacement for this board. This page is for reference only. Description: A fun package full of potential projects! Development board for 28 pin PIC microcontrollers with power supply circuit, crystal oscillator circuit, RS232 port, ICSP/ICD port, 16x2 alphanumeric Supertwist LCD display, 6 button keyboard, Dallas touch button port, frequency input, ADC input, rela ...

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PICMAN prototyping board using PIC18LF4553

For a long time now I've been wanting to make my own microcontroller-based prototyping board. My original motivation was the unjustified high costs for even the simplest boards (a basic Arduino for $30 - why???) and the challenge of designing something that anyone can make at home within a few hours, with parts that can be cheaply obtained on eBay. Eventually, I came up with the PICMAN. It is: Based on Micr ...

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PIC-Programmer 2 for PIC16C84 etc.

This Programmer is powered by the RS-232 and it works with RS-232 levels at only < ±8.6V. It programs PIC12C5XX, 12C67X, 24CXX, 16C55X, 16C61, 16C62X, 16C71, 16C71X, 16C8X, 16F8X and ISO-CARD's with ASF. Other serial programmable chips by adapter. The high Vpp is obtained by using negative voltage to drive the chip. The voltage is stabilized with zener diodes. They do not need voltage drop as if a voltag ...

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Ultra-easy use of 64-pin TQFP PIC18F6620 using TQFP-to-DIP PCB from VOTI

A while ago I purchased a batch of 18F6620 TQFP PIC Microcontrollers at a ridiculously low price. The barrier to use of TQFP packages is, of course mounting these SMD packages effectively alongside the ‘normal’ components enthusiasts tend to use. At the time I set about and designed a header, and test motherboard for these chips, and although my header was successful, repeatability was variable using the ra ...

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