About: Ibrar Ayyub

This was inspired by Raj’s personal soundtrack shirt in Big Bang Theory S3, E16, “The Excelsior Acquisition”. You can now buy them online but it’s much more fun to make your own and it’s possible now that buttons designed for use in electronic clothing are available from Connectedwear. Nine of the buttons on the Connectedwear […]

One of my clocks stopped working – and it happened to be a clock my wife likes a lot. Went to the repair shop and the guy said that he didn’t have the spare parts and could not repair this. So – I thought – why not build an LED clock – I had tons […]

I used: an Arduino Uno a Parallax PIR Motion Sensor and a Seeed Studio SD Card Shield Arduino, shield, sd card, logging shield, storage, logger Check out This instructable on PIRs in case you didn’t know what it is: http://www.instructables.com/id/PIR-Motion-Sensor-Tutorial/ Step 1: Connect your PIR Sensor Hook up the PIR Sensor Ground pin to Ground […]

Capacitive sensors are an elegant way to control an Arduino using the Capacitive Sensing Library. But the sensitivity and error tolerance depend strongly on the hardware (sensor) design. I found a design guideline here and tested different setups which mostly work well if the Arduino was powered by battery. But the sensor signal changes dramatically […]

Digital pins 1-7 are generally used as input pins and Digital pins 8-13 are used as output pins. Digital pins 9-11 can be used as analog output pins. That is, they can send they can send signal of variable voltage. 5/15/2012 Getting started with Arduino. I have skimmed through the “Getting Started with Arduino” and […]

Ah yes. It has been a long time since I posted an Instructable…well here goes: It has been a while since I have been otivated to write an ‘ible. During this idle time I have been writing, rewriting and editing code as well as designing lots of PCBs. For my new ible which I have […]

Vinyl cutters are used in the sign writing industry, and are great for making stickers, signs and graphics. I would like to thank Instructable  members silverjimmy  and Groover for their fantastic laser cutter instructables, without which I would not of been able to complete this project. My idea is to take an old printer and […]

Have a problem with my wireless bridge. It works for a some time then, despite it saying everything it fine, refuses to connect wirelessly. All it needs is to be turned off and on again and it works again (for a while!). I decided that what was needed is some form of circuit to reset […]

Description The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as […]

Plessey Semiconductors today announced the release of the PS2292X family of low dropout linear regulators for point of load applications. The devices are part of a high current, single supply LDO family that operates from an input voltage as low as 1.7V. Targeted for industrial, medical, communication, computing and consumer markets, the regulators are an […]