About: Ibrar Ayyub

This experiment turns on a LED when a whistle is detected. The LED turns off when the whistle is detected for the second time.                       ;Expt11b.asm ;Project: Whistle-On  Whistle-Off List P = 16F84 #include <p16F84.inc> __CONFIG 1Bh    ;_CP_OFF & _PWRTE_ON & _WDT_OFF & _RC_OSC SetUpDelay Delay1 DelayA Look Look1 Look2 Main Main1 Main2 Main3 ORG 00 […]

Digital temperature controller is an essential instrument in the field of electronics, instrumentation and control automation for measuring and controlling temperatures. It can be used as much at homes as in industrial applications. Different types of analogue and digital temperature controllers are readily available in the market, but they are generally not only expensive, their […]

Linear Voltage Regulator The power supply runs on a linear voltage regulator built on discrete components. The design of the linear regulator was inspired by the user Amspire from the EEVblog forum. The basic idea is that the Q1 pass transistor and U5A op amp act in a classic voltage regulating loop. U5A gets feedback […]

This project controls two servo motors – both clockwise and anticlockwise and has variable speed. You can use the Joy Stick to “pan and tilt” a remote camera or provide “left-right-up-down” action for a crane or an animation on your model layout. The project also tests servo motors. The CIRCUIT The circuit is fairly simple. […]

Aiming at lighting manufacturers that don’t want to buy a soldering line, Sheffield-based Litecool has developed a self-adhesive self-connecting LED package that can be pick-and-placed direct onto heatsinks – and it accepts standard lenses from Carclo. No PCB, metal-cored or otherwise, is required. The key to self-adhesive packaging for power devices is to spread heat […]

Displaying moving or scrolling text on lcd(16×2,8×1,16×4,8×2,16×1,20×1,20×2 etc) is very easy. You just need to know how to efficiently use lcd commands.In this project i am using pic 16f877 microcontroller to display text and then scroll it on the lcd. The lcd which i am using is 16×2. Where 16 represents number of coulombs and […]

BEAVERTON, Ore., March 15, 2016 /PRNewswire/ — Tektronix, Inc., the world’s leading manufacturer of oscilloscopes, today introduced the P7700 series of TriMode™ probes for use with Tektronix performance oscilloscopes. Offering up to 20 GHz bandwidth, the new probes ease the challenges designers face when debugging circuits found in the latest mobile and enterprise designs by minimizing […]

This experiment turns on a LED when button A is pressed. The button is connected to the lowest bit of Port A (bit0). When the button is pressed, the line goes HIGH. This is called positive logic. The LED is connected to the lowest bit of Port B (Bit0). Any bit of any port can be […]

What do you do if you have a spare LCD module with backlight, a weird 16 button keyboard, and a PIC16F877A microcontroller gathering dust? A monster Martian Clock immediately springs to mind. You are probably thinking “There are hundreds of PIC clocks on the Net – do we need yet another one?!” Well, this one […]

17.03.16 – EPFL scientists achieve the highest yet reproducibility for perovskite solar cells combined with a boundary-pushing 21.1% efficiency at normal operating conditions. Perovskite solar cells hold much promise for cost-effective solar energy. However, heat stability is an issue, and can significantly limit the solar cell’s long-term efficiency. A team of scientists led by Michael […]