I²C – Inter-Integrated Circuit

I²C or I2C is an abbreviation of Inter-Integrated Circuit, a serial communication protocol made by Philips Semiconductor (now it is NXP Semiconductor). It is created with an intention of communication between chips reside on the same Printed Circuit Board (PCB). It is commonly usually used to interface slow speed ICs to a microprocessor or a microcontroller. It is a master-slave protocol, usually a processor or microcontroller is the master and other chips like RTC, Temperature Sensor,...

March 23, 2018By Ligo GeorgeElectronicsBUS, I²C, Master, Serial Communication, Slave1 CommentRead more...

Home Automation using Bluetooth and Mobile App

Technology is a never ending process. To be able to design a product using the current technology that will be beneficial to the lives of others is a huge contribution to the community. Generally in today’s modern world human beings are addicted to using modern equipment. So here we can perform home automation by using an Android App and Bluetooth as a wireless communication medium. Home automation not only refers to reduce human efforts but also energy efficiency and time saving. Home...

December 23, 2017By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsAutomation, Embedded, IoT, Microcontroller, MikroC, PIC8 CommentsRead more...

SPI Communication with PIC Microcontroller – MPLAB XC8

SPI (Serial Peripheral Interface) is a full duplex synchronous serial communication interface used for short distance communications. It is usually used for communication between different modules in a same device or PCB. SPI devices communicates each other using a master slave architecture with a single master. SPI Communication SPI is called as a 4-wire bus as it requires four wires for its communication as shown above. In the case of single slave communications we need only 3 wires, as slave select (SS)...

May 1, 2017By Ligo GeorgeMPLAB XC8, PIC Microcontroller, Tutorials16F877A, MPLAB, PIC, SPI, XC82 CommentsRead more...

SPI – Serial Peripheral Interface

SPI (Serial Peripheral Interface) is a full duplex synchronous serial communication interface used for short distance communications. It is usually used for communication between different modules in a same device or PCB. SPI devices communicates each other using a master slave architecture with a single master. Multiple slaves are supported through individual slave select lines.

SPI Interface

SPI is called as a 4-wire bus as it requires four wires for its communication as shown below. In the case of single slave communications...

April 30, 2017By Ligo GeorgeElectronicsSerial Communication, SPI2 CommentsRead more...

What is a Microprocessor ?

A microprocessor is an integrated circuit (IC) which incorporates core functions of a computer's central processing unit (CPU). It is a programmable multipurpose silicon chip, clock driven, register based, accepts binary data as input and provides output after processing it as per the instructions stored in the memory.

Block Diagram of a Computer

Why we need a Microprocessor ?

Thank you "B B DWIVEDI" for asking this question in the comment. So I thought...

April 5, 2017By Ligo George8085, Electronics, TutorialsMicroprocessor, processor8 CommentsRead more...

EasyEDA vs DipTrace vs OrCad

Today I am gonna write about my PCB designing journey that happened before 8 year. I started doing hobby circuits before 8 years and now I am doing professional circuits.

Phase 1 : Hand Drawn (no Software)

I started designing PCB manually without using any softwares. Mostly I used graph papers to design PCB as it was very easy to make measurements and alignments. Several iterations of drawing was required to make even a small circuit. After the design is completed, I...

December 13, 2016By Ligo GeorgeElectronicsDipTrace, EasyEDA, Layout, OrCad, pcb, PCB Design6 CommentsRead more...

Virtual Ground – Opamp

What is Virtual Ground ?

As the name indicates it is virtual, not real ground. For some purposes we can consider it as equivalent to ground. In opamps the term virtual ground means that the voltage at that particular node is almost equal to ground voltage (0V). It is not physically connected to ground. This concept is very useful in analysis of opamp circuits and it will make a lot of calculations very simple.

Virtual Ground - Opamp

Lets see how the virtual...

December 2, 2016By Ligo GeorgeBasic Electronics, Electronics, OpampGround, Opamp, Virtual Ground4 CommentsRead more...

ESP8266 – WiFi SoC

WiFi SoC (System on Chip)

ESP8266 is the most popular and low cost WiFi SoC with TCP/IP stack and a low power 32 bit microcontroller manufactured by Espressif, a Shanghai based Chinese manufacturer. As you might already know, nowadays IoT (Internet of Things) is an emerging field. This is the one of the most popular and low cost solution for connecting 'Things' to internet via WiFi. ESP8266 - WiFi SoC ESP8266 belongs to Espressif System's Smart Connectivity Platform (ESCP) which is...

November 25, 2016By Ligo GeorgeElectronics, ESP8266, IC, TutorialsESP8266, IoT, SoC, TCP/IP, UDP, WiFi0 CommentsRead more...

Author - Ligo George