Write a program to do the following:

$1-$PORT $1$ must start with the LEDs connected to P$1\mathrm{.}0,$ P$1\mathrm{.}1,$ P$1\mathrm{.}6,$ and P$1\mathrm{.}7$ being ONwhile the rest of the LEDs are OFF for $2$ seconds. You must then switch the LEDs offbefore reading the ADC.

$2-$In the main program, read the $8-$bits ADC$0804$ which is connected through Port P$2.$The ADC$0804$ on board is an $8-$bit device with an internal reference voltage of $5$ volt. TheADC is connected to a temperature sensor$.$ If the temperature sensor output is $5$V$,$ thenthe real temperature is $90-$degree Celsius. In the main program you must read thesensor output and convert it to the real temperature. This real temperature must bedisplayed on the two $7-$segment displays which is connected to Port $1.($Binary to BCDconversion must thus be done$).$ If the temperature goes above $40$ degree Celsius$($Including $40),$ the LED connected to Port $3\mathrm{.}0$ must switch ON $($Take note of how it isconnected$).$ For temperatures below $40-$degree Celsius, the LED must be OFF.

$3-$You must also activate the external interrupt $0,$ for the Hex keypad which isconnected through the MM$74$C$922$ decoder device. On every key press, an interrupt is triggeredon pin P$3\mathrm{.}2$ and can be used to interrupt the main program.

In the interrupt service routine:

$-$you must read the values that you receive from the keypad encoder when a key ispressed, correct the received values and display the corrected value on Port $1$ for aslong as the key is pressed. Display only the binary value received from the keypad onthe LED$$s connected to Port $1.$

$-$While still in the interrupt routine, just after the pressed key is released, display the rawvalue that was received from the ADC for $1$ second. $($Hint: The value received from theADC must thus be globally declared. Create another $1-$second software delay in theinterrupt service routine. Do not call an outside delay function$).$

$-$Only after displaying the key pressed value and the raw ADC value the program mustreturn to the main program and display the temperature again on the $7-$segmentdisplays connected through $2$ bin$-7$seg decoders through pins P$1\mathrm{.}2,$ P$1\mathrm{.}3,$ P$1\mathrm{.}4,$ P$1\mathrm{.}5.$and P$3\mathrm{.}4,$ P$3\mathrm{.}5,$ P$3\mathrm{.}6$ and P$3\mathrm{.}7.$