Aplicações de Microcontroladores / Mbed 2 deprecated Aula_2

Multímetro

Dependencies:   mbed LCDLib

main.cpp@2:fb35f75110ee, 2019-07-04 (annotated)

Committer:
meksc
Date:
Thu Jul 04 12:24:39 2019 +0000
Revision:
2:fb35f75110ee
Parent:
1:808bed0f2433 
projeto arlindo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
felipealboy 0:be36515913f8 1 #include "mbed.h"
felipealboy 0:be36515913f8 2 #include "TextLCD.h"
felipealboy 0:be36515913f8 3
felipealboy 0:be36515913f8 4
meksc 2:fb35f75110ee 5
felipealboy 0:be36515913f8 6 DigitalOut led1(PC_13);
felipealboy 0:be36515913f8 7 TextLCD lcd(PA_4,PA_5,PA_6,PB_12,PB_13,PB_14,PB_15);
felipealboy 0:be36515913f8 8 AnalogIn adc(PA_0);
MaikonJT 1:808bed0f2433 9 AnalogIn tensaofixa(PA_1);
meksc 2:fb35f75110ee 10 Serial pc(PA_9, PA_10);// ver qual porta e rx e tx
felipealboy 0:be36515913f8 11
meksc 2:fb35f75110ee 12 /*InterruptIn botao(PA_7);
felipealboy 0:be36515913f8 13 volatile bool botao_pressed = false; // Used in the main loop
felipealboy 0:be36515913f8 14 volatile bool botao_enabled = true; // Used for debouncing
felipealboy 0:be36515913f8 15 Timeout botao_timeout; // Used for debouncing
felipealboy 0:be36515913f8 16
felipealboy 0:be36515913f8 17 // Enables button when bouncing is over
felipealboy 0:be36515913f8 18 void botao_enabled_cb(void)
felipealboy 0:be36515913f8 19 {
felipealboy 0:be36515913f8 20 botao_enabled = true;
felipealboy 0:be36515913f8 21 }
felipealboy 0:be36515913f8 22
felipealboy 0:be36515913f8 23 // ISR handling button pressed event
felipealboy 0:be36515913f8 24 void botao_onpressed_cb(void)
felipealboy 0:be36515913f8 25 {
felipealboy 0:be36515913f8 26 if (botao_enabled) { // Disabled while the button is bouncing
felipealboy 0:be36515913f8 27 botao_enabled = false;
felipealboy 0:be36515913f8 28 botao_pressed = true; // To be read by the main loop
felipealboy 0:be36515913f8 29 botao_timeout.attach(callback(botao_enabled_cb), 0.3); // Debounce time 300 ms
felipealboy 0:be36515913f8 30 }
felipealboy 0:be36515913f8 31 }
meksc 2:fb35f75110ee 32 */
felipealboy 0:be36515913f8 33
felipealboy 0:be36515913f8 34 int main()
felipealboy 0:be36515913f8 35 {
MaikonJT 1:808bed0f2433 36 float alim, tensao, corrente, resistencia;
meksc 2:fb35f75110ee 37 char cont;
meksc 2:fb35f75110ee 38 cont = '1';
felipealboy 0:be36515913f8 39 //button1.mode(PullUp); // Activate pull-up
meksc 2:fb35f75110ee 40 //botao.fall(callback(botao_onpressed_cb)); // Attach ISR to handle button press event
felipealboy 0:be36515913f8 41
felipealboy 0:be36515913f8 42 while(1) {
felipealboy 0:be36515913f8 43
MaikonJT 1:808bed0f2433 44 alim = 3.3*tensaofixa.read();
felipealboy 0:be36515913f8 45 tensao = 3.3*adc.read();
MaikonJT 1:808bed0f2433 46 resistencia = (tensao*1000)/(alim-tensao);
MaikonJT 1:808bed0f2433 47 corrente = (tensao/resistencia) * 1000;
meksc 2:fb35f75110ee 48 cont= pc.getc ();
felipealboy 0:be36515913f8 49
meksc 2:fb35f75110ee 50
meksc 2:fb35f75110ee 51 /* if (botao_pressed == true) { // Set when button is pressed
felipealboy 0:be36515913f8 52 botao_pressed = false;
felipealboy 0:be36515913f8 53 cont = cont++;
felipealboy 0:be36515913f8 54 led1 = !led1;
felipealboy 0:be36515913f8 55 }
MaikonJT 1:808bed0f2433 56 if(cont == 4){
felipealboy 0:be36515913f8 57 cont = 1;
felipealboy 0:be36515913f8 58 }
meksc 2:fb35f75110ee 59 */
meksc 2:fb35f75110ee 60
meksc 2:fb35f75110ee 61 if(cont == '1'){
meksc 2:fb35f75110ee 62 //lcd.gotoxy(1,1);
meksc 2:fb35f75110ee 63 //lcd.printf("Tensao: %.2fV ",tensao);
meksc 2:fb35f75110ee 64 pc.printf("Tensao: %.2fV ",tensao);
MaikonJT 1:808bed0f2433 65 wait(0.2);
MaikonJT 1:808bed0f2433 66
felipealboy 0:be36515913f8 67 }
meksc 2:fb35f75110ee 68 if(cont == '2'){
meksc 2:fb35f75110ee 69 //lcd.gotoxy(1,1);
meksc 2:fb35f75110ee 70 pc.printf("Corrente: %.2fmA ",corrente);
MaikonJT 1:808bed0f2433 71 wait(0.2);
felipealboy 0:be36515913f8 72 }
meksc 2:fb35f75110ee 73 if(cont == '3'){
meksc 2:fb35f75110ee 74 //lcd.gotoxy(1,1);
meksc 2:fb35f75110ee 75 pc.printf("Res.:% .0fohm ",resistencia);
MaikonJT 1:808bed0f2433 76 wait(0.2);
felipealboy 0:be36515913f8 77 }
MaikonJT 1:808bed0f2433 78
felipealboy 0:be36515913f8 79 }
felipealboy 0:be36515913f8 80 }