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Dependencies:   TextLCD mbed MaxSonar RTC-DS1307

Fork of TextLCD_HelloWorld by Simon Ford

main.cpp@4:c669026b6f6e, 2017-05-24 (annotated)

Committer:
aueangpanit
Date:
Wed May 24 12:02:38 2017 +0000
Revision:
4:c669026b6f6e
Parent:
3:5e0ba6e35849
Child:
5:2f13ec8efe0b
Multiple screen display

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon 1:7418a52375a0 1 // Hello World! for the TextLCD
simon 1:7418a52375a0 2
simon 0:334327d1a416 3 #include "mbed.h"
aueangpanit 4:c669026b6f6e 4 #include <string>
simon 0:334327d1a416 5 #include "TextLCD.h"
simon 0:334327d1a416 6
aueangpanit 3:5e0ba6e35849 7 TextLCD lcd(PTE30, PTE29, PTE23, PTE22, PTE21, PTE20); // rs, e, d4-d7
aueangpanit 3:5e0ba6e35849 8
aueangpanit 4:c669026b6f6e 9 DigitalOut screen1(PTE5);
aueangpanit 4:c669026b6f6e 10 DigitalOut screen2(PTE4);
aueangpanit 4:c669026b6f6e 11
aueangpanit 4:c669026b6f6e 12 void UpdateScreen(DigitalOut screen, string text);
aueangpanit 4:c669026b6f6e 13
aueangpanit 3:5e0ba6e35849 14 int i = 0;
simon 0:334327d1a416 15
simon 0:334327d1a416 16 int main() {
aueangpanit 4:c669026b6f6e 17 screen1 = 1;
aueangpanit 4:c669026b6f6e 18 screen2 = 1;
aueangpanit 4:c669026b6f6e 19 wait(1);
aueangpanit 4:c669026b6f6e 20
aueangpanit 4:c669026b6f6e 21 UpdateScreen(screen2, "Screen2");
aueangpanit 4:c669026b6f6e 22
aueangpanit 4:c669026b6f6e 23 UpdateScreen(screen1, "Screen1");
aueangpanit 4:c669026b6f6e 24
aueangpanit 4:c669026b6f6e 25 }
aueangpanit 4:c669026b6f6e 26
aueangpanit 4:c669026b6f6e 27 void UpdateScreen(DigitalOut screen, string text)
aueangpanit 4:c669026b6f6e 28 {
aueangpanit 4:c669026b6f6e 29 //disable all E pin for all screens
aueangpanit 4:c669026b6f6e 30 screen1 = 0;
aueangpanit 4:c669026b6f6e 31 screen2 = 0;
aueangpanit 4:c669026b6f6e 32
aueangpanit 4:c669026b6f6e 33 //enable E pin for the scrren that we want to update
aueangpanit 4:c669026b6f6e 34 screen = 1;
aueangpanit 4:c669026b6f6e 35
aueangpanit 4:c669026b6f6e 36 //some weird behaviour after disabling the E pin once means that we need to update the screen several times for it to display properly
aueangpanit 4:c669026b6f6e 37 for(i = 0; i < 10; i++)
aueangpanit 4:c669026b6f6e 38 {
aueangpanit 3:5e0ba6e35849 39 lcd.cls();
aueangpanit 4:c669026b6f6e 40 char text_char_array[1024];
aueangpanit 4:c669026b6f6e 41 strcpy(text_char_array, text.c_str());
aueangpanit 4:c669026b6f6e 42 lcd.printf(text_char_array);
aueangpanit 3:5e0ba6e35849 43 }
aueangpanit 4:c669026b6f6e 44
aueangpanit 4:c669026b6f6e 45
simon 0:334327d1a416 46 }