About: Ibrar Ayyub

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 […]

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, […]

This is an old design of the breadboard adapter. Please look at this blog post for the recent design. I designed a single-sided ESP-12/ ESP-07 breadboard adapter PCB which will be easy to etch and solder for anyone who loves to play with the ESP8266 on a breadboard like me. Eagle files are in my […]

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 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 […]

For a recent project, I needed to boost the output from a USB (high ampage charging) port from 5V up to 18V to power an amplified speaker. I decided to try rolling my own boost converter (mainly because playing with big inductors sounded cool). My first attempt was a dismal failure (it could only source about 10mA […]

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 […]

Established companies and emerging start-ups are putting a stake in the Internet of Things ground, an opportunity with estimates of 50 billion devices connected by 2020. Standing in the way for many companies is the increasing complexity of technology inside connected devices. Shortened design cycles further fuel pressure felt by designers — the shelf-life of an IoT […]

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 […]

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 […]