Projects

Schematic 100MHz frequency counter with PIC16F628A – LED Display

100MHz frequency counter with PIC16F628A – LED Display

Couple of weeks ago I purchased from eBay one of these amazingly cheap an useful modules with MAX7219 LED driver and 8 digit LED display. It is ideal for frequency counter project. The problem was the absence of library for PIC microcontrolers. Luckily, I found a great library for Arduino and I reworked it to […]

Mini GSM localizer without GPS1

Mini GSM localizer without GPS using pic microcontoller

It’s no the first time that we present a localizer without GPS. We remake the old device with the cheaper SimCom module SIM900. In the previous post we present the GSM section and now we can present the complete localizator. Introduction This system allows for localization without directly using GPS technology; we are able to […]

Basic circuit for PIC18F24J50 or PIC18F26J50 to work over USB schematic

Basic circuit for PIC18F24J50 or PIC18F26J50 to work over USB

The basic circuit below will work with any PIC18F2xJ50 microcontroller. You just have to upload the appropriate firmware. Go to Downloads section to find firmware hex files for the microcontroller and the resonator you would like to use. PIC18F24J50 firmware v2.6.3 – all subversions.zip contain the following general use subversions: 4 MHz, 8 MHz, 12 […]

Serial LCD Library

Serial LCD Library using PIC16C84

Here is a library to interface your PIC code to an LCD that is controlled via a serial line. One such LCD is available from Scott Edwards Electronics. There are many others, and the code shown here can easily be adpated to other LCD displays by changing some defines. The following files are referenced below, […]

USB PIC Programmer

USB PIC Programmer

This page is dedicated to everybody needs to program a PIC (Microchip) device via USB port. Looking on the web for ready-to-use  projects, I found a good one called Open Programmer, coming with several schematics, PCBs and Open Source code. The original link is http://openprog.altervista.org/OP_ita.html What concerned me was the need to mount, on the mainboard, a […]

LCD Serial Terminal

LCD Serial Terminal using PIC16F84

LCD Serial Terminal Introduction: In the 1980s a serial terminal was a big thing with a picture tube and keyboard. You used it to communicate with a computer by RS-232 cable or with a modem. In this century, we still sometimes have need for a serial terminal, and we’ll typically use a personal computer running […]

PIC Stroboscope

PIC Stroboscope using PIC12F675 microcontroller

PIC Stroboscope You have probably been to a party where there is a strobe and it delays everything. Today we are going to use this principle to “slow” stuff (fans) down. Maybe you have seen one using 555 timers, the Arduino and maybe even the Propeller chip. However, have you ever seen one with a […]

18 PIN PIC Development Board

18 PIN PIC Development Board

The PIC 18 PIN (DIP) Development / Evaluations Board demonstrates the capabilities of Microchip’s 8-bit microcontrollers, specifically, 18 Pin PIC16F1847. It can be used as a standalone demonstration board with a programmed part. With this board you can develop and prototype with all Microchip’s 18 PIN PIC microcontrollers. The board has a Reset switch and […]

PIC 18F4550 Timer And Interrupt Example Video Project

PIC 18F4550 Timer And Interrupt Example Video Project

Welcome back everybody! This video covers multitasking via timers and interrupts with the PIC 18F4550. A few notes on this video: -To keep the pace of the video going I added fast forwarding more than in the previous videos. Please let me know in the comments if this was helpful or better compared to the […]