About: Ibrar Ayyub

Story What is a Bootloader? Microcontrollers require a programmer to install firmware on them. A programmer is a device, that when combined with software, loads firmware to the microcontroller. There are many programmers available. I won’t go into to detail about them, but I will say that if you intend to do more than just […]

Usually, when measuring a child’s height at home, a mark is drawn on the wall then the height is measured using a measuring tape. This process is not always easy and it may has low resolution. In an attempt to simplify this procedure, a new project was developed using an Arduino and a distance sensor. […]

Story SSD1306xLED is a C library for working with the SSD1306 display driver to control dot matrix OLED/PLED 128×64 displays. It is intended to be used with the Tinusaur board but should also work with any other board based on ATtiny85 or similar microcontroller. The 128×64 OLED is controlled by a SSD1306 circuit and could be […]

A recent ebay fishing expedition yielded an interesting little part for the very reasonable sum of about five pounds. It’s a voltage regulator module from a Dell PowerEdge 6650 Xeon server. I originally bought this because I had the idea of salvaging parts from it to use in another project. These are high quality modules […]

Stand out from the crowd with this unabashedly ostentatious excuse for a wallet. It’s got plenty of space, RGB lights, and you can even put your name on it for added vanity. Interested? Keep reading!In the files section of this build you can find two things: a Fusion archive and some STL files. If you’re […]

My Sonicare electric toothbrush recently quit working, so I took it apart and examined the interesting circuitry inside. There’s much more complexity than I expected inside a toothbrush, especially in the mechanism that drives the brush head at 31,000 strokes per minute. Internally, the brush appears to be designed for quality rather than ease of […]

Features Wide Input Voltage Range: 1.4V to 40V 1 Resistor Sets Output Voltage: 0.4V to 32V Output Current: 2.1A ±2% Tolerance Over Line, Load and Temperature Output Current Monitor: IMON = IOUT/1000 Temperature Monitor with Programmable Thermal Limit Programmable Cable Drop Compensation Parallel Multiple Devices for Higher Current Dropout Voltage: 330mV 1 Capacitor Soft-Starts Output and […]

The Project Intended as open source for those who want to build their own dosimeter with their own tools, this is an IOT device that can take several sensors and have the data centralized online. The readings are accessible via a RESTful API, or by connecting directly to the KIT1 unit, in the local LAN. […]

The 700V and 800V CoolMOS™ P7 product families have been developed for flyback based low power SMPS applications including adapter and charger, lighting, audio SMPS, AUX and industrial power. The latest 600V CoolMOS™ P7 family completes the portfolio by offering the third voltage class of the P7 platform, that in contrast to the 700V and […]

This Design Idea presents a low power short circuit finder that capitalizes on the ear’s sensitivity to changes in frequency. The heart of the circuit is a voltage-to-frequency converter (based on Linear Tech’s AN45, Figure 13, by Jim Williams), which converts millivolt-level DC voltages to a wide range audio frequency output. The excitation signal is […]