S@Robotics

Some integrated circuits and their implementation: some ics and their implementation In previous post i talked about  the basics of digital electronics ,if you don't see this you can read this post  here .Now we discuss about some integrated circuits and their implementation according to  the schedule  sequentially.So let's learn- 555 timer IC: The 555 is a single chip version of a commonly used circuit called a  multivibrator . The IC used in a variety of timer,pulse generation, and oscillator applications. The 555 timer has three modes- monostable,astable and bistable. 555 timer ic pinout Monostable mode: Monostable or 'one shot' mode,produces a single pulse of a set length in response to a trigger input.Here's the formulas written below to find out the time (T),capacitance (c) and resistance (R)-        T=1.1RC        C= T/1.1R        R= T/1.1c Monostable mode of ...

Circuit symbols Circuit symbols Circuit symbols: The list above covers almost every symbol you will find on an electronic circuit diagram.It allows you to identify a symbol and also draw circuits. It is a handy reference and has some symbols that have never had a symbol before, such as a Flashing LED and electroluminescence panel. Once you have identified a symbol on a diagram you will need to refer to specification sheets to identify each lead on the actual component. The symbol does not identify the actual pins on the device. It only shows the component in the circuit and how it is wired to the other components, such as input line, output, drive lines etc.You cannot relate the shape or size of the symbol with the component you have in your hand or on the circuit-board. Sometimes a component is drawn with each pin in the same place as on the chip etc. But this is rarely the case. Most often there is no relationship between the position of the lines on the circuit and ...

Basics of digital electronics: Basics of digital electronics Digital systems A system which deals with quantities and variables having two discrete values or  states are called is called  digital system . In these circuits, the input and output can have any one of the two values “1” or “0”. Following are the examples of such quantities: A switch can either open or closed. The answer of a question can be either yes or no. A certain statement can be either true or false. A bulb can be either on or off. In all these situations, one of the states is represented by “1” and the other state by “0”. "1" represents: i. ON circuit ii. High voltage iii. True statement "0" represents: i. OFF circuit ii. Low voltage iii. False statement Number systems in digital electronics: Types of digital circuits: There are mainly two types of digital circuits- Combinatorial Circuits: In these circuits, the past states are  immaterial and the output depen...

Introduction to embedded systems and robotics: Introduction to embedded systems and robotics Hey friends, you are mostly welcome to my blog "s@robotics".I'm souvik,a physics lover and from this platform you may learn robotics easily for free.I promise you to upload two posts on Thursday and Sunday of each week.I will cover those following contents throughout my posts sequentially. There are mainly three parts i.e- Digital electronics,embedded system and Robotics.And these parts will be devided into some subtopics written below. Contents covered: A. Digital Electronics: Basics of digital electronics Some integrated circuits and their implementation B. Embedded systems: Introduction to microcontrollers Code vision AVR (CVAVR) Introduction to Atmega 16 microcontroller I/O ports LCD interfacing UART communication Timers SPI [serial peripheral interface] ADC [analog to digital converter] Interrupts C. Robotics: Introduction to autonomo...