BOOTLOAD PIC18F4550 – FIRMWARE UPDATING SETTING THE PIC18F4550 IN RD/WR ( BOOTLOAD ) MODE FOR BOOTLOADING Loading / updating new code into the USB INTERFACE BOARD can be done with a Bootloader Software. While searching for good bootloader, I found some nice tutorial on eegeek.net and piccoder.co.uk for BOOTLOADING the USB INTERFACE board. The tutorial […]
Projects
USocket – USB controlled Socket with PIC18F4550
Introduction The idea of this project is to control (switch off/on) two power sockets with a computer by using its USB port. I’ve chosen USB in first place because I wanted to experiment with the PIC18F4550 microchip’s microcontroller, and secondly because the power supplied by this port (500mA) is enough to activate a relay without […]
In circuit serial programmer for PIC16F87X
Intro Here you can find all resources you need to build your own in-circuit serial PIC16F87X programmer. After experimenting with the PIC16F84, time had come to move on to more powerful devices, such as the PIC16F871. These devices offer a low voltage progamming (LVP) mode. This basically means that it is possible to modify the […]
USB Interface Demo Board Using PIC18F4550
PIC18F4550 USB DEMO INTERFACE BOARD PROJECT This project / USB hardware is quiet easy to make at home with few components, this piece of hardware will be detected by your computer like any other external device once it’s completed. This is a Simple USB demo interface development board project and demonstrate excellent USB interface to […]
Schaer+ Programmer using PIC12F629 microcontroller
Description Schaer is a generic programmer circuit capable of uploading and downloading firmware to/from several electronic devices like microcontrollers and eeproms. This and other programmers came to my attention when I was working in CAMBADA, the robotic soccer team from the University of Aveiro, and since all other programmers available there were too expensive for me to buy […]
Stepper Motor Driver using PIC18F4550 Microcontroller
Stepper Motor Tutorial In this tutorial we are going to drive a Single unipolar stepper motor using PIC18F4550 Microcontroller in various different stepping modes. The source code and Project files are free to download at the end of this page. Stepper motor due its excellent features is very famous in between hobbyist for various robotic […]
A modified version of the “Air diplay” adapted to be used in a bicycle using PIC12F629 microcontroller
Anthony from Cumaná, Venezuela, made his own “Persistence of vision” (POV) display, similar to my Air Display but it can be mounted on any bicycle wheels and it displays fifteen messages in Spanish. Here is the PCB with each part of the project. It uses a 12F629, works with a voltage of 3Volts This is […]
PIC18F4550 Tutorial: Blink LED – 2
Hi welcome to my 4th chapter of PIC18F4550 programming. Here we are going to learn another methodology or technique for programming a pic18f microcontroller which would be helpful in future while dealing with complex coding. We are going to define our own header file. We are also going to see the Source Code and will […]
PIC18F4550 Tutorial: Blinking an LED
TUTORIALS PIC18F4550 Programming Tutorial in Hardware C PIC Tutorial, Mplab IDE – C18 compiler toolsuite PIC18F4550, Looking the data sheet | Ports PIC18F4550 Programming Blink led method 1 PIC18F4550 programming Method 2 Blink led PIC18F4550 Blink LED 20MHZ Oscillator | XC8 Mplab X IDE and XC8 compiler Blink LED PIC18F2550 programming: Blink LED | XC8 […]
Using Fixed Voltage Reference (FVR) for A/D conversion in enhanced mid-range PIC microcontrollers
The reference voltage plays a very important role in any A/D conversion. It determines both the range and the resolution (Volt/Count) of the A/D conversion. Besides, the accuracy of the conversion also depends upon how stable the reference voltage is. Usually in PIC microcontrollers, the reference voltage for A/D conversion can be selected as the […]