About: Ibrar Ayyub

Hi folks, now I’ll teach you how to make your programmer to the ESP-01 and ESP-201, (perhaps serve with other models) using an Arduino UNO, a few cables and optionally a button and a slide switch, in my case I use them because I had available, with this programmer able to upload the Arduino sketches […]

multifunction RGB  LED  controller  using low cost PIC12F675 microcontroller. features: 1, 4+1 mode operation   a single potentiometer  and single button switch used for  multiple operation 2, EEPROM Memory option for mode selection :- the  last mode will be saved . 3, mode1  automatic hue saturation RGB LED light  color pattern – potentiometer  used for the […]

The PE42420 is a HaRP™ technology-enhanced absorptive 50 Ohm SPDT RF switch developed on the UltraCMOS® process technology. This general purpose switch is comprised of two RF ports and has very high isolation performance. It is ideal for RF and IF transceiver signal switching (signal amplitude adjust), discrete DSA stages, and filter bank switching applications. […]

When you connect a microcontroller to a sensor, display, or other module, do you ever think about how the two devices talk to each other? What exactly are they saying? How are they able to understand each other? Communication between electronics is like communication between humans. Both sides need to speak the same language. In electronics, these languages are called communication […]

Description It is a low cost dimmer circuit for adjusting the light brightness of incandescent, Halogen Lamp, Light Bulb load up to 250 W. Features: – Input supply: 230 VAC or 110 VAC – Output: 250 W – Triac controlled – On board Potentiometer for adjusting level – Power Battery Terminal (PBT) for easy input […]

Description   The TPS65090A is a single chip Power Management ICs for portable applications consisting of a battery charger with power path management for a dual or triple Li-Ion or Li-Polymer cell battery pack. The charger can be directly connected to an external wall adapter. Three highly efficient step-down converters are targeted for providing a […]

Features Complete Step-Down Switch Mode Power Supply Wide Input Voltage Range: 3.4V to 40V Wide Output Voltage Range: 0.97V to 18V Wide Temperature Range: –40°C to 150°C (H-Grade) 3.5A Continuous Output Current, 6A peak FMEA Compliant Pinout Output Stays at or Below Regulation Voltage During Adjacent Pin Short or if a Pin Is Left Floating Selectable Switching […]

Dave checks out a Fluke/Philips PM2812 System DC Power supply he scored from ebay for 30 bucks. Does it work? Will the bunker hardware tin collection come through?   For more detail: EEVblog #755 – Fluke PM2812 PSU Ebay Score

This project is pretty cool for a few reasons, and driving a huge LED matrix with a single 8-bit controller is just one of them. The idea was born when I bought 120 LEDs of the wrong type, and decided to do something with them. With that many LEDs, there are only a few things […]

It’s been my experience over many years that hardware people are responsible for rubbish software. Years upon years of shoddy hardware drivers, dreadful software bundled with cameras (Canon, Pentax I’m looking at both of you); Printers (HP, Epson), Scanners (HP – one day I might forgive you) have provided the evidence. Since leaving Microsoft I’ve […]