PC Keyboard Theory The IBM keyboard you most probably have sitting in front of you, sends scan codes to your computer. The scan codes tell your Keyboard Bios, what keys you have pressed or released. Take for example the ‘A’ Key. The ‘A’ key has a scan code of 1C (hex). When you press the […]
Interfacing the AT keyboard. Read More »
I’m trying to build this dual DC motor module for my robot project And I did not have the space for placing an ICSP pin header on the PCB. So i quickly mocked up this design. Step 1: Geting the parts Well to build the ICSP socket with header for the PICkit 2. We need
Pic 16F676 ICSP programing socket for the PICkit 2 programer Read More »
Introduction If you’ve dabbled with PIC18F microcontrollers and the USB Generic HID standard before (perhaps you’ve even tried my Building a PIC18F USB device project) then you will have noticed that there is a lot of complexity in supporting USB on both the PIC18F and the Windows host-side of things. Getting beyond the basic steps of
Open Source Framework for USB Generic HID devices based on the PIC18F and Windows Read More »
The photo shows a PIC16F84 microprocessor board tethered, by ribbon cable, to a circuit having 8 LEDs and an 8-position DIP switch. Learning a microprocessor’s capabilities often demands such a setup where LEDs turn on/off, blink at desired rates and respond to switches. This tutorial serves to quickly accelerate your PIC16F84 development ambitions. Motivation and
PIC16F84 Fundamentals Read More »
Introduction I get a number of emails every month asking about creating USB devices using the PIC18F microcontroller. After looking at projects such as my Atari Joystick USB Adaptor and C64 VICE Front-End there seems to be a demand for more information on how to ‘hack your own’. In this article I will show how
Building a PIC18F USB device Read More »
INTRODUCTION The idea for creating a USB sound card based on a PIC came from discussions of other people creating one on the Microchip USB forum. The hardware of the card is based on all Microchip products. The software uses a modified version of the Microchip USB framework which is interrupt driven instead of the
USB Audio Streamer A Microchip PIC based USB sound card Read More »
This project started life a long time ago, with the intention to build an iPod clone, back when personal MP3 players were an expensive luxury and long before you could buy them from China on ebay for less than a light bulb. The plan for the MP3 player was to use a PIC microcontroller connected
PIC microcontroller ATA library Read More »
Inroduction More and more experiments are now ‘PC-assisted.’ Also conventional acquisition systems are very expensive. Since portable PCs are today common and a USB link is a better solutionhere we present an oscilloscope using USB port of the PC that operates at up to 10 kHz with ±16V input voltage. It has much more improved features than the PC-based oscilloscope . The oscilloscope uses IC
Two-Channel PC Based Oscilloscope USB Read More »
How to Make Phonecall From GSM Module Using pic18f2550 … Mplab® ide – developer – wikidot, Mplab ® x integrated development environment (ide) is a software program that runs on a pc (windows ®, mac os ®, linux ®) to develop applications for microchip. Ee times | electronic engineering times | connecting , Ee times connects the
Ide To Usb Converter Circuit Diagram Read More »
Alphanumeric LCD displays have become very popular for microcontroller applications because they can add a lot to a project in a variety of different ways. A text message giving the user instructions as well as feedback can make the application seem much more “professional” and easy to use. I like to use LCD’s to help
2-wire LCD interface using PIC16CF84 Read More »
