Put four red LED as a straight line and connect each of them to a corresponding analog output. Connect a potentiometer to a 5 Volt power source. Divide the 0 to 5 Volt output of the potentiometer into four parts (0 ~ 1.25 Volt, 1.25 to 2.5 Volt, 2.5 to 3.75 volt, and 3.75 to 5 Volt). Write a program to change the brightness of a LED with respect to the voltage. For each 1.25 V interval, the brightness of one LED will be proportional to the output voltage of the connected potentiometer.

Explanation:

There has been no information about related to which programming language is to be used, writing code algorithm.

Defining I/O's ;

Analogue output

A01, A02, A03,AO4

Analogue Input;

AI_1   // potentiometer input

// Based on controller used, assign channels to I/O's

// code

int voltage

Voltage = AI_1;

If (Voltage > 0 && Voltage < 1.25)

 {

   A01 = voltage

   A02 = 0;

   A03= 0

   AO4= 0

 }

If (Voltage > 1.25 && Voltage < 2.5)

 {

   A01 = 1.25

   A02 = (Voltage -1.25);

   A03= 0

   AO4= 0

 }

If (Voltage > 2.5 && Voltage < 3.75)

 {

   A01 = 1.25

   A02 = 1.25

   A03=  (Voltage - 2.5);

   AO4= 0

 }

else

 {

   A01 = 1.25

   A02 = 1.25

   A03=  1.25

   AO4= (Voltage - 3.75);

 }

return

answer:

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answer:

50 vo; ts

explanation: