About: Ibrar Ayyub

This post provides the software UART (Bit Banging) code for PIC12F675 microcontroller (e-g to connect PIC controller with PC using serial adapter). As we know, PIC12F675 microcontroller doesn’t have built in UART module, so we can create UART functionality in it’s software. This post provides the details of how to program software UART functionality in PIC12F675. This […]

On this page I hope to provide more details than I usually provide for those who wish to construct their own PIC-bot, realising that people actually try to make this stuff. Traditionally, my ‘bot pages are for documenting the essentials, not in the kind of detail needed to make as if it were a kit. […]

These days I was thinking about a better PIC programmer that can work with MicrochipMPLAB IDE software so that I can write my own programs or edit someone else’s programs. I found that there are numerous versions of the famous Microchip PICkit 2 on the web. Some of them are using the original schematic published […]

A WiFi (Wireless Fidelity) is a technology that uses the 2.4GHz UHF and 5GHz SHF ISM radio bands to allow devices such as computers, smartphones, digital cameras, tablet computers, etc. to network. Nowadays the WiFi technology is being used by cities to provide free or low-cost Internet access to residents. The WiFi is inexpensive and […]

Features Fits in one half height 5.25″ drive bay. Back light 16 x 2 lines LCD (Hitachi Compatible) display. 4 Selection buttons, arranged so that it looks like an ATM machine. RS232 19,200 baud connection to PC with Hardware handshaking (CTS). Uses a subset of the standard VT-52 control codes to control the LCD. 3.6864MHz […]

LG Chem has supplied 1,100 OLED reading lights to the KwanJeong Library at Seoul National University (SNU), claiming it to be the biggest OLED lighting installation yet. “SNU adopted OLED lighting for the library’s reading lights because it is energy efficient and is comfortable to the eyes,” said the firm, claiming: “OLED lighting comes closest […]

Updated on 30.6.2015 The PIC16F876A’s ADC digitizes the sound and store it in the SD or SDHC card. The firmware works for SD or SDHC cards only, for old SD (before 2009) use ver1 firmware. Do not use SDXC cards with this project because some of them work on 1.8V drive. The code detects whether […]

ESP8266 Troubleshooting – NodeMCU Flasher Where do I download the NodeMCU flasher? Go to the NodeMCU flasher GitHub repository and download the flasher for your Windows PC bit version by clicking the button that says “Raw”: NodeMCU flasher Windows 64 bits NodeMCU flasher Windows 32 bits Which settings should I use with the NodeMCU flasher? The […]

Here’s another breadboard module that carries a PIC16F628A microcontroller. The power supply pins and the I/O ports of the PIC16F628A microcontroller are accessed through male headers. It can be easily plugged into a breadboard and is very useful for quick prototyping. It frees up a lot of space on the breadboard since the oscillator, reset, […]

uni5_a.bmp – PCB of parallel programmer UNIPROG V-A uni5_as1.bmp – schematic diagram of G.Tait’s programmer with 4066 uni5_ao1.bmp – layout of components of G.Tait’s programmer with 4066 List of components: 1 x slot for ISO card (eight pins are enough) 1 x female Centronix connector 36pin 1 x 74LS06 (7406) or 74LS07 (7407) 1 x […]