About: Ibrar Ayyub

Wear is an affordable, attractive, lightweight wearable assistive directional microphone designed to improve quality of hearing. Wear is an assistive device designed to improve quality of life for people with hearing loss.   Wear is a high fidelity directional analog microphone that is significantly lower in price than existing hearing aids.  This microphone can be used with any […]

Introduction This is the second in a series of tutorials examining various uses of the Arduino Yún. In this article we’ll examine how your Arduino Yún can send data that it captures from the analogue and digital inputs and a real-time clock IC to an online Google Docs spreadsheet. Doing so gives you a neat and inexpensive […]

This device was created for a final project for a class by a group of students at Indiana University. As sport fans, we thought it would be really useful to create a tool that would measure distance between two points. This could be used for many different sports, but we focused on golf. A handheld […]

The tiny Arduino IDE ready, usb and mobile dev board and ecosystem – cheap enough to leave in any project! Wi-fi, BLE, and 25+ shields! Missed out? Pre-Orders! Did you miss out on this Kickstarter – Don’t Worry! You can preorder a Digispark Pro at http://digistump.com/getpro Thank You! Thank you to our amazing backers! This […]

Control your Arduino with voice commands using an Android smartphone! Before we make a voice activated home automation system, we must first learn the basic principles of the experiment. This guide will let you command the Arduino using your Android smartphone and a HC-05 Bluetooth module. The designer of the app did not include a […]

LTC4121/LTC4121-4.2 – 40V 400mA Synchronous Step-Down Battery Charger Features Wide Input Voltage Range: 4.4V to 40V Adjustable Float Voltage (3.5V to 18V): LTC4121 Temperature Compensated Input Voltage Regulation for Maximum Power Point Tracking (MPPT) Fixed 4.2V Float Voltage Option: LTC4121-4.2 High Efficiency: Up to 95% 50mA to 400mA Programmable Charge Current ±1% Feedback Voltage Accuracy Programmable 5% […]

16 node mesh, up to 1000m between nodes, sample two analog voltages per node, link any node to any other node, display data on any node with either graphics or text display, turn on relays based on data at any node, fault tolerant with data going via multiple paths. Arduino Compatible apc220 Wireless rf Module […]

This is an example to show how to get sensor data from a remote Arduino via Wireless Lora Protocol. The exampels requries below hardwares:   1) Client Side: Arduino + Lora Shield (868Mhz) + DS18B20 (Temperature Sensor). 2) Server Side: Arduino + Lora Shield (868Mhz) + Yun Shield + USB flash. make sure the USB […]

Today I made a high frequency multiplier using a single component: the ICS501 PLL clock multiplier IC. This chip provides 2x, 5x, 8x (and more) clock multiplication using an internal phased-lock loop (PLL). At less than a dollar on eBay, $1.55 on mouser, and $0.67 on Digikey, they don’t break the bank and I’m glad I have a few in my […]

With the host of protocols available in electronics interfaces, choosing a protocol is a hard job. Some protocols are designed for long distance and reliable communication applications such as RS-485. Others are used for low cost and short range communication such as I2C, and so on. The backbone car’s network is the Controller Area Network […]