Embedded System Communication Protocol in Hindi

Iss post mai embedded system mai use hone wale communication protocol ke bare mai detail mai smjhaya gya hai. We know that, embedded system hardware and software ke combination se bna huaa electronics system hai jo kisi particular job ko krne ke liye bnaya jata hai.

(1). Embedded system protocol (Electronics & Technology)

Embedded system mai different types ke devices  or Electronics components (Microcontroller, sensor, display etc.) hote hai jinko aapas mai data ka aadan - pardan  krane ke liye kuchh rules hote hai, in rules ko hi communication protocol kahte hai.

               PIR sensor or Motion sensor with Arduino code  

Basically embedded system mai serial communication ka use kiya jata hai. Parallel communication mai sbhi data line ke liye alag- alag wire ka use karna pdhta hai, jisse system ki cost kafi bdh jati hai. Isliye embedded system serial communication ka use kiya jata 

Embedded serial communication 2 category ke hote hai.

1. Inter system protocol 
2. Intra system protocol 

Inter system protocol - Computer or processor,  Microcontroller development board (Arduino, Nuclio, ) ke beech hone wale data communication ko inter system protocol kahte hai.

Inter communication protocol nimn parkar ke hote hai.

1. USB      (Universal Serial Bus)

2. UART    (Universal Asynchronous Receiver/Transmitter)

3. USART  (Universal Synchronous Asynchronous Receiver/Transmitter) 

USB protocol -  USB  mai basically 4 wires hoti hai but data transfer ke only 2 wire  ka use hota hai jo ki data positive and data negative hoti  hai. USB communication mai data packet ke roop mai transfer kiya jata hai. Yah ek serial communication protocol hai.

(2). USB Communication

UART  -  UART ek serial communication hai. Iska main purpose Data ko transmit or receive krna. Ye ek easy protocol hai. Isme devices ke beech data transfer ke liye only two wire (Tx, Rx) ka use hota hai.

(3). UART Communication

UART- mai only do device hi kam kr skti hai means 1 master and another slave. Usually iski speed 96000 baud (bit per second) hoti hai.
                    

1	Communication mode	Serial, Asynchronous
2	Duplex mode	Full or simplex
3	Baud rate	Usually 96000
4	Wire use	2 (Rx, Tx)
5	Max. Master, Slave	1,1

                          

USART -     Universal Synchronous Asynchronous Receiver Transmitter ek serial communication interface protocol hai. USART serial port se  RS232 ko data ka communication karta hai.


Intra system protocol -

PCB board mai mount components (microcontroller, Sensor, display etc.) ke beech hone wale communication ko intra system communication protocol kahe hai.

Intra communication protocol mai use hone wale important protocol nimn hai.-

1. I2C    (Inter Integrated Circuit)
2. SPI    (Serial Peripheral Interface)
3. CAN (Controller Area Network)


I2C Communication Protocol 

Is protocol mai theoretically multi master or 1008 slave connect kiya ja skata hai. Yah ek serial, synchronous protocol hai. I2C half duplex mai kam krti hai.

(4). I2C Communication

.

I2C mai 2 data line SDA or SCL hoti hai jine hmesa ek resistor se pull-up rkha jata hai. 

Generally Pull-up resistor ki value 4K7 hoti hai.

1	Communication mode	Serial, Synchronous
2	Duplex mode	Half duplex
3	Baud rate	100 KBPS - 5 MBPS
4	Wire use	2 (SCL, SDA)
5	Max. Master, Slave	Multi, 1008

SPI Communication Protocol -

Is protocol mai one  master or multi Slave hote hai. Mtlab microcontroller ek SPI port se hm mult devices connect kar skte hai.

Isme 4 wires ka use kiya jata hai, jnme se 3 wire (SCL, MISO, MOSI) sbhi slave devices ke liye common hoti hai or sbhi slave devices ko ek- ek wire se or connect kiya jata hai vo hai Chip Select pin , Chip select pin Microcontroller ki koi bhi GPIO pin ho sakti hai. Yah ek fast communication protocol hai.

1	Communication mode	Serial, Synchronous
2	Duplex mode	Full duplex
3	Baud rate	Up to 10 MBPS
4	Wire use	4 (MISO, MOSI, SCK, CS)
5	Max. Master, Slave	1, Multi

(5) SPI Communication

CAN Communication Protocol -


Is communication protocol mai sbhi devices common connection ke sath jude rhte hai. Basically  CAN protocol ka use automobile mai automation ke liye kiya jata hai. CAN protocol ek high speed protocol hai. Yah half duplex mai kam krta hai.

1	Communication mode	Serial,  Asynchronous
2	Duplex mode	Half duplex
3	Baud rate	125 KBPS- 1MBPS
4	Wire use	1 (Can bus)
5	Max. Master, Slave	Multi, Multi

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