Question

a) A remote-control car works such that it has a four-way control (forward, reverse, left, right). The car has four motors for movements in four directions. Each motor turns on when the corresponding button is pressed. For instance, if the left button is pressed the left motor turns on and the car moves in the left direction. The figure below shows the movement of the car according to the pressed button. For instance, when both up and right button are pressed together, both the forward and the right motors are activated and the car moves in the forward right direction. The car sounds an alarm on the following combinations Page 2 of 3

(need answer as soon as possible)

Answer 1

Answer:- A remote control Car such that it has works control a four-way i) Forward ii) Reverse iii) Left iv) Right in 1) The car has four motors for movements four directions so Pi كه for up motor P2 is for down motor P3 is for left motor Pu motor. for is right where H for alarm as selection lines represented So, si, Sz, S3 A,B,C,D the system is X The output to motor movement where *b represents xa represents car alarm.

2) Truth table !- Xb Xa x D B A Pi P2 P3 |P4 H o O 0 o o O ó - QH O O 0 O o 0 0 Q3 - D 0 0 o H Q2 o o - 0 - 0 Qe tou b 0 - O QztQ3 - 0 o 0 I 0 0 o O Qi - - 0 0 Q+Qu o Q+Q3 O L o o - 0 H O O H 0 o H 0 j - 0 0 H - 0 1 H -

3) The simplified function for car movement : BA BA 00 E 11 BA 10 01 D o o 00 - Ďc 01 1 o 0 0 DC O - DE 10 X b = Õ BA + Ď CB + D C B + DBÃ t CBĀ

of car alarm :- The Simplified function BA DC BA BA BA BA Il o DC oo O 0 IC 01 - DC D 0 o Xa BA +DC

4) The logic diagram Io R (right) І, Iz P3 (left) Н. I3 P2 (daon) Iy Ratau P2+P3 IS I6 16: I7 X Pi (up) PI Mux Is Pitpu| Iq P+P3 Io Ill H T2 Hlalarm) H I13 H Ilu 1+ 115 S3 S2 Si so DCBA

Up Button (PD) Up & Right Up and left button PitP3) 7 button LP, + Pu) left Right car button (Pu) button (B3) Down & left button Doon & Right Buton AL + Du Dovon button (P2) (P3+P2)