create a working serial communication solution containing optocouplers between an Arduino and a Raspberry Pi. Basic requirements for your solution: Arduino must send a minimum of at least 10 characters via the optocoupler to Raspberry. Raspberry will receive these characters and print them on console / monitor. -> (Error handling should be implemented to ensure correct communication. This can be done with parity bit or checksum.)

1- Configure the 8255 as the following port A as Output, B as Input, and all the bits of port C as Output assuming a base address of 3A0h. What is the correct code that read a value from port B and then output is to both port A and port C 3020181 MOV AL, 82h OUT 3A3,AL IN AL, 3A1 OUT 3A0, AL OUT 3A2, AL b) None Of Above MOV AL, 90h C) OUT 53,AL IN AL, 51 OUT 50, AL OUT 52, AL d) MOV AL, 81h OUT 3A2,AL IN AL, 3A1 OUT 3A0, AL OUT 3A3, AL Boş bırak

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Suppose a file of 10,000 bytes is to be sent over a line at 2400 bps. A. Calculate the overhead in bits and time in using asynchronous communication. Assume one start bit and a stop element of length one bit, and 8 bits to send the byte itself for each character. The 8-bit character consists of all data bits, with no parity bit. B. Calculate the overhead in bits and time using synchronous communication. Assume that the data are sent in frames. Each frame consists of 1000 characters = 8000 bits and an overhead of 48 control bits per frame. C. What would the answers to parts (a) and (b) be for a file of 100,000 characters?