About: Ibrar Ayyub

I bought recently on yahoo auctions a set of 4 gameboys (1 brick, 2 colors and 1 pocket 1st gen) because I had a plan to hack them and I needed some guinea pigs. I have already 2 at home but … well, it was a total of 1,500 JPY (10 euro w/ delivery) so. […]

My two and a half year old son loves toys with flashing lights. For this Christmas I thought of making a mini LED Christmas tree for him. This project uses 22 multi-color LEDs which are driven by a PIC12F683 microcontroller using the Charlieplexing technique. The details of the build procedure is described in the following […]

[advanced_iframe securitykey=”7053122eaa09ce46830dfb8aaeae454056003ad0″][advanced_iframe securitykey=”7053122eaa09ce46830dfb8aaeae454056003ad0″]This project shows you how to create a serial LCD module that you can drive from any serial RS232 interface. You may be asking yourself why is this project using RS232 when computers are no longer even produced with a serial port as standard? There are three reasons: Most microcontrollers come with a UART […]

Robots look cooler when they have a sinister green glow. Better yet, when that glow exists for a functional purpose it’s even better! Here I show how to make a custom robot and use LED’s to not only enhance line following, but also make it work in the dark too. Step 1: The Mechanical Design […]

The EchoMp3 is a small DIY* Audio player. Mp3, Wav, Ogg-Vorbis, Wma and Mid formats are supported. 4, 8, 16 GB SDHC cards used as storage. FAT (FAT16) and FAT32 supported. Low power operation with two AA (HR6) 1V2 Ni-Mh batteries. Power input range is +2.4V … +3.0V Runs on a PIC18F46K20 at 64 MhZ. […]

The PIC Ultrasonic distance meter works by transmitting a short pulse of sound at a frequency inaudible to the ear (ultrasonic sound or ultrasound). Afterwards the microcontroller listens for an echo. The time from transmission to echo reception lets you calculate the distance from the object. PIC Ultrasonic Distance Meter Specification Range ~5cm – 300cm […]

This robot is controlled by a visual basic program (through the serial port), and can move in three different velocities by a pulse width modulated (PWM) signal generated by a PIC microcontroller (16F877). The robot can be operated in two modes, “normal control” and “light tracker” modes. In the normal control mode, the robot can […]

With about 40 percent of the world’s food produced using irrigation, it’s a major factor in food security. Amid concerns about water availability for agriculture, making the most of every drop is increasingly critical. UNL computer engineer Mehmet Can Vuran developed technology to help farmers boost yields and conserve water, with support from a National […]

When working in extreme temperatures it is important to monitor your body temperature. In freezing weather, your fingers and toes get numb and you can develop frostbite without even noticing it. Likewise, if your core body  temperature drops too low, you can start to start to suffer the effects of hypothermia before you are aware […]

*** There’s an updated version of this kit available at http://www.theledart.com/blog/store *** Responding to many requests, Aurora 9×18 Kit is now available, so this is the Instructable specific to building the kit. Please leave comments, especially tips for successful assembly. Step 1: Identify the Parts First, identify all the parts contained in the kit. Below is the […]