About: Ibrar Ayyub

After making the switch from AVR to STM32 microcontrollers, I redesigned my old 6-pin ICSP pogo-programming adapter for SWD. The new design allows programming with pogo pins or a small pin header soldered to the pogo pads for debugging, all with the same cable. The footprint uses surface mount pads only, so it can be […]

This is an example USB project showing how to interface an optical mouse sensor (the ADNS-2620) with a standard XP/Vista computer. The TD-USB-01 board with a PIC18F2550 communicates with: the PC: USB 2.0 through a mini-B connector. the mouse sensor board: SPI over 4-wire flatcable. Here are the technical specifications: PC Win XP/Vista interface application […]

Turn ON or OFF electrical devices using remote control is not a new idea and you can find so many different devices doing that very well. For realization of this type of device, you must make a receiver, a transmitter and understand their way of communication. Here you will have a chance to make that […]

The “Mädchen Machen Technik” workshop is designed to give high school students an introduction to microcontrollers. The students will build a flashing light pattern and/or a counter-timer. In the process of building this project, the students will learn about microcontrollers and digital electronics. Here is the parts list for the projects. Introduction to some circuit […]

@ device pic16f877 define osc 4 ‘sevent segment common Anode define adc_bits 8 main: adcon1 = 7 trisa = $ff trisd = $00 disp var portd num var byte num =0 while(1) for num = 0 to 9 lookup num,[$40,$79,$24,$30,$19,$12,$02,$78,$00,$10],disp pause 500 next num wend end

Microsemi is selling its SmartFusion2 SoC FPGA dual-axis motor control kit with a modular motor control IP suite and reference design for $599 for a limited period. The kit, which simplifies motor control designs using a single SoC FPGA, is scalable across multiple industries such as industrial, aerospace and defense. Typical applications include factory and […]

Recently I bought two ESP12e, wanted to see how those IoT things work. One thing I know for sure, they don’t tolerate 12V 1A 😉 yep fired one by accident … I left with one working, trying to figure out what should I build with it. In the meantime was wondering should I by a […]

USB AVR In-System-Programmer (ISP) – The AVR firmware was written by: Klaus Leidinger – The PCB was designed by: Dimitris Porlidas – The schematic diagram was drawn by: Dimitris Porlidas – The AvrOspII software was written by: Mike Henning – Small modifications in firmware and schematic diagram were made by: Vassilis Serasidis Nowadays, USB is the […]

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I found several different magnetometer designs on Internet, but I tend to be very picky. None of those was what I needed – something that is sensitive enough to record the small magnetic field variations where I live (San Jose, California), robust enough to work for long periods of time without constant maintenance, and relatively […]