Serial I$/$O

You need to design an interface to receive a message one byte at a time from a

Bluetooth device connected with null modem configuration. The Bluetooth HC$-05$ module receives information wirelessly and transmits to the MCU through an interface

configured with $9600$ baud rate. The MCU then outputs the byte to parallel PortB pins.

You can use the USARTO subsystem in the ATmega$2560$ for Bluetooth communication.

A$)(4$ pts$.)$ Show the interconnection wire between ATmega$2560$ and Bluetooth HC$-05$ Transmit and receive pins Indicate the direction of the data with arrows. Annotate the name of the ATmega$2560$ pins used for this application. The illustration is given above.

B$)(10$ pts$.)$ Complete the following C program given the MCU clock frequency is $16$ MHz

Use the commented number $()$ on your answer sheet to indicate which blank your

answer is for. Also state the reason with a comment

#include

#define FULL$\_$BYTE$\_$RECEIVED $(1$