About: Ibrar Ayyub

Since it was one of the first things I ever built, I decided to put it in an enclosure of its own and consider it too as a finished product. The problem was that the prototype never ran properly. It worked, just not as well as it should. Needless to say, I tried to fix […]

Details • The world’s first lab device to target OS X, Linux, Windows, Android and iOS (jailbroken) compatibility. • Get mobile: take the SmartScope on the road, thanks to the single-cable connectivity. • Intuitive: pointing, pinching and swiping finally replaces the clunky interfaces of old scopes. • Develop your digital interfaces using the 100MS/s logic […]

In my previous post, I write about an LED matrix for a marquee. The display itself is a two-board solution, the second board or ‘daughterboard’ piggy-backs on some pin headers from the display board. This second PCB provides the control interface and logic for handling these 64 leds, and passing along control data to any […]

Features Synchronous Boost and Buck Controllers When Cascaded, Allows VIN Above, Below, or Equal to Regulated VOUT Output Remains in Regulation Through Input Dips (e.g., Cold Crank) Down to 2.5V Wide Bias Input Voltage Range: 4.5V to 38V Low Input and Output Ripple Low EMI Fast Output Transient Response High Light Load Efficiency Low Operating IQ: 33μA […]

How to interpret the direction of rotation from a digital rotary switch with a PIC The objective for this Instructable is to illustrate how to interface a digital (quadrature coded) rotary switch with a microcontroller. Don’t worry, I’ll explain what quadrature coded means for us. This interface and the accompanying software will allow the microcontroller […]

This project is fit for use in automotive and industrial network applications. As a Controller Area Network (CAN) transceiver, this device provides differential transmit capability to the bus and differential receive capability to a CAN controller at signaling rates up to1Mbps. The device is designed for operation in especially harsh environments and includes many device […]

As a fan of taking my dihydrogen monoxide in straight, uncut, uncorrupted liquid form, I purchased a six stage reverse osmosis filter some years ago. My filter is a few years old now, and the super calcium enriched water we have in Michigan has taken its toll. The filter used to shut off when the […]

This is an inexpensive component tester called the FISH 8840 which you can find from many online eBay retailers for around $30. The interface is very simple, attach a device to be tested and press the test button. It turns off after about 20 seconds, pressing the off button puts it into sleep mode immediately. […]

I recently bought The Energy Detective (TED), a pretty inexpensive and friendly way to keep tabs on your whole house’s electricity usage. It’s a lot like having a more featureful version of your utility company’s power meter, sitting on your kitchen counter. It can estimate your utility bill, and tell you how much electricity and […]

We love to read emails from our visitors, Please let us know by clicking here if you find any kind of bug/error in our site. We will fix it as soon as possible. PIC Controlled Relay Driver This circuit is a relay driver that is based on a PIC16F84A microcontroller. The board includes four relays […]