fra221-pb11 / Mbed 2 deprecated hw02

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Dependencies:   mbed

main.cpp@1:da458f1db225, 2018-10-19 (annotated)

Committer:
xkzy
Date:
Fri Oct 19 04:09:07 2018 +0000
Revision:
1:da458f1db225
Parent:
0:c8b89a6e4c0e
Child:
2:77448d13dd0d
.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pitiwut 0:c8b89a6e4c0e 1 #include "mbed.h"
xkzy 1:da458f1db225 2 AnalogIn analog_value(A5);
xkzy 1:da458f1db225 3 BusOut vu_leds = (PA_3,PA_2,PA_10,PB_3,PB_5,PB_4,PB_10,PB_8);
xkzy 1:da458f1db225 4 BusOut digit1=(PA_9,PC_7,PB_6,PA_7);
xkzy 1:da458f1db225 5 BusOut digit2=(PB_0,PA_4,PA_1,PA_0);
xkzy 1:da458f1db225 6 DigitalIn user(USER_BUTTON);
xkzy 1:da458f1db225 7 DigitalOut led(LED1);
xkzy 1:da458f1db225 8 long map(long x, long in_min, long in_max, long out_min, long out_max)
xkzy 1:da458f1db225 9 {
xkzy 1:da458f1db225 10 return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
xkzy 1:da458f1db225 11 }
xkzy 1:da458f1db225 12 double power(int x,int y)
xkzy 1:da458f1db225 13 {
xkzy 1:da458f1db225 14 int z=x;
xkzy 1:da458f1db225 15 while(y>0) {
xkzy 1:da458f1db225 16 z=z*x;
xkzy 1:da458f1db225 17 y--;
xkzy 1:da458f1db225 18 }return z;
xkzy 1:da458f1db225 19 }
xkzy 1:da458f1db225 20 void display_vu(unsigned int x)
xkzy 1:da458f1db225 21 {
xkzy 1:da458f1db225 22 int out=power(2,x)-1;
xkzy 1:da458f1db225 23 vu_leds=out;
xkzy 1:da458f1db225 24 }
xkzy 1:da458f1db225 25 void display_digits(int x)
xkzy 1:da458f1db225 26 {
xkzy 1:da458f1db225 27 digit1=x/10;
xkzy 1:da458f1db225 28 digit2=x%10;
Pitiwut 0:c8b89a6e4c0e 29
xkzy 1:da458f1db225 30 }
Pitiwut 0:c8b89a6e4c0e 31 int main()
Pitiwut 0:c8b89a6e4c0e 32 {
xkzy 1:da458f1db225 33 float adc1;
xkzy 1:da458f1db225 34 int volt1;
xkzy 1:da458f1db225 35 int volum;
xkzy 1:da458f1db225 36 bool mode;
Pitiwut 0:c8b89a6e4c0e 37 while(1) {
Pitiwut 0:c8b89a6e4c0e 38
xkzy 1:da458f1db225 39 adc1 = analog_value.read(); // Read the analog input value (value from 0.0 to 1.0 = full ADC conversion range)
xkzy 1:da458f1db225 40 volt1 = map(adc1,0,1.0,0,33); // Converts value in the 0V-3.3V range
xkzy 1:da458f1db225 41 volum = map(adc1,0,1.0,0,8);
xkzy 1:da458f1db225 42 if(mode) {
xkzy 1:da458f1db225 43 display_vu(volum);
Pitiwut 0:c8b89a6e4c0e 44 } else {
xkzy 1:da458f1db225 45 display_digits(volt1);
Pitiwut 0:c8b89a6e4c0e 46 }
xkzy 1:da458f1db225 47 if(user) {
xkzy 1:da458f1db225 48 mode=!mode;
xkzy 1:da458f1db225 49 while(user);
xkzy 1:da458f1db225 50 }
Pitiwut 0:c8b89a6e4c0e 51 wait(0.2); // 200 millisecond
Pitiwut 0:c8b89a6e4c0e 52 }
Pitiwut 0:c8b89a6e4c0e 53 }