About: Ibrar Ayyub

The mikroC PRO for PIC provides a Sound Library to supply users with routines necessary for sound signalization in their applications. Sound generation needs additional hardware, such as piezo-speaker (example of piezo-speaker interface is given on the schematic at the bottom of this page). Library Routines Sound_Init Sound_Play Sound_Init Prototype void Sound_Init(char *snd_port, char snd_pin); […]

It has been a quiet period but a very busy period, very active and very fruitful. I will be launching the projectryu.com site soon with tons of free resources for the audio hobbyist. Getting back to the title of this post, i would like to present a few improvements and a concrete design as a […]

A mousetrap is a type of animal trap specialize to catch small animals, particularly rodents like rats, mice, hamsters, etc. This project is a kind of mousetrap that is intended to keep a captured animal alive. In this way, the hunter can release the captured animal later to the wild. The PIC12F683 microcontroller acts as […]

Intro I will start from saying that the board could be replaced by any Arduino plus some(s) its motor driver shield(s). So why I made it you may ask? Well, while I made this tiny tank-robot model presented on below pictures, I wanted to make at least some things by myself, and decide what I […]

The mikroC PRO for PIC provides a library for communication with the Microchip’s Port Expander MCP23S17 via SPI interface. Connections of the PIC compliant MCU and MCP23S17 is given on the schematic at the bottom of this page.   Important : The library uses the SPI module for communication. User must initialize the appropriate SPI […]

The Breadboard Power Supply includes AMS1117 – 5V voltage regulator and AMS1117–3.3V voltage Regulator, providing fixed supply voltages. It features three voltage input options: a screw terminal connector, DC adapter connector and USB connector. It can operate on 6-12V DC power supply and has separate screw terminals for 3.3V and 5V outputs. The AMS1117 series […]

emtocell is a promising technology used primarily to enhance the signal quality of mobile devices inside buildings, where coverage is spotty or the signal is weak, or simply when you want a faster and reliable connection. 1. Introduction Femtocells are basically low-power wireless access points that operate inside licensed frequency bands for connecting standard mobile […]

Description 12V Lead Acid Battery Monitor is a simple project which tells you the voltage of your Lead acid battery visually with the help of 10 LED’s.  This project is based on the popular LM3914 IC from Texas Instruments. The LM3914 senses the voltage level at the input pin and drives the 10 light emitting […]

In the last tutorial we learn about the multiplexing technique used with seven segment displays. We learnt how it saves i/o line by using persistence of vision. Only one digit is lit at a time, but to a human eye it is too fast to catch, so we see all four digit lit the same […]

Using a modified version of the last program, we can control as many servomotors as we have I/O lines on port B. In the next listing, we will control two servos in the same manner as we controlled a single servo in the previous program. The circuit is shown in figure 4 (below). The program […]