Diff: main.cpp

Revision:

1:e6f838f99eeb

Parent:

0:8fe7d36af056

Child:

2:85f2573de3e4

--- a/main.cpp	Mon Mar 17 12:35:48 2014 +0000
+++ b/main.cpp	Mon Jul 26 12:23:40 2021 +0000
@@ -1,110 +1,17 @@
 
 #include "mbed.h"
-
-DigitalOut LCD_RS(D8);
-DigitalOut LCD_EN(D9);
-DigitalOut LCD_D4(D4);
-DigitalOut LCD_D5(D5);
-DigitalOut LCD_D6(D6);
-DigitalOut LCD_D7(D7);
+#include "LCD.h"
 
 
-//########################################
-// LCD Library
-//########################################
-
-//send data to lcd
-void write_lcd(uint8_t d){
-
-    LCD_D4 = (d & 0x10)?1:0;
-    LCD_D5 = (d & 0x20)?1:0;
-    LCD_D6 = (d & 0x40)?1:0;
-    LCD_D7 = (d & 0x80)?1:0;
-
-    wait_us(2);
-    LCD_EN = 1;
-    wait_us(2);
-    LCD_EN = 0;
-
-}
-
-//lcd write byte
-void lcd_write_byte(uint8_t byte){
-
-    write_lcd(byte);
-    write_lcd(byte << 4);
-
-}
-
-//write command
-void lcd_putcmd(uint8_t c){
-
-    wait_ms(5);
-    lcd_write_byte(c);
-    
-}
-
-//write one char
-void lcd_putc(uint8_t d){
-
-    wait_ms(1);
-    LCD_RS = 1;
-    lcd_write_byte(d);
-    LCD_RS = 0;
-
-}
-
-
-
-//print string
-void lcd_puts(char * p){
-
-    while(* p)lcd_putc(* p++);
-
-}
-
-//lcd initial interface
-void lcd_initial(void){
-    
-    uint8_t x = 3;
-    
-    LCD_RS = 0;
-    LCD_EN = 0;
-
-    LCD_D4 = 0;
-    LCD_D5 = 0;
-    LCD_D6 = 0;
-    LCD_D7 = 0;
-
-    wait_ms(50);
-    
-    while(x--){
-        
-        write_lcd(0x30);
-        wait_ms(5);
-        
-    }
-
-    write_lcd(0x20);            //4bit interface
-
-    lcd_putcmd(0x28);           //function set
-    lcd_putcmd(0x08);           //display off
-    lcd_putcmd(0x01);           //display clear
-    lcd_putcmd(0x06);           //entry mode set
-    lcd_putcmd(0x0c);           //display on
-
-}
-//########################################
-// End of LCD Library
-//########################################
 
 #define DHTLIB_OK                0
 #define DHTLIB_ERROR_CHECKSUM   -1
 #define DHTLIB_ERROR_TIMEOUT    -2
 
 Timer tmr;
+lcd mylcd;
 
-DigitalInOut data_pin(A1);
+DigitalInOut data_pin(PB_15);
 
 int humidity;
 int temperature;
@@ -128,31 +35,31 @@
     // REQUEST SAMPLE
     data_pin.output();
     data_pin.write(0);
-    wait_ms(18);
+    wait_us(18000);
     data_pin.write(1);
     wait_us(40);
     data_pin.input();
 
     // ACKNOWLEDGE or TIMEOUT
-    unsigned int loopCnt = 10000;
+    unsigned int loopCnt = 20000;
     
     while(!data_pin.read())if(!loopCnt--)return DHTLIB_ERROR_TIMEOUT;
 
-    loopCnt = 10000;
+    loopCnt = 20000;
     
     while(data_pin.read())if(!loopCnt--)return DHTLIB_ERROR_TIMEOUT;
 
     // READ OUTPUT - 40 BITS => 5 BYTES or TIMEOUT
     for(int i=0; i<40; i++){
         
-        loopCnt = 10000;
+        loopCnt = 20000;
         
         while(!data_pin.read())if(loopCnt-- == 0)return DHTLIB_ERROR_TIMEOUT;
 
         //unsigned long t = micros();
         tmr.start();
 
-        loopCnt = 10000;
+        loopCnt = 20000;
         
         while(data_pin.read())if(!loopCnt--)return DHTLIB_ERROR_TIMEOUT;
 
@@ -191,30 +98,21 @@
 
 int main(void){
     
-    lcd_initial();
+    mylcd.clear();
+    mylcd.cursorpos(0);
     
-    lcd_puts("=Nucleo - DHT11=");
+    mylcd.printf("Nucleo - DHT11");
     
     for(;;){
+       int fehler=dht_read();
         
-        if(!dht_read()){
             
-            //sprintf(buffer, "Temp %2d C     ", temperature);
-            //lcd_putcmd(0x80);
-            //lcd_puts(buffer);
-            sprintf(buffer, "Hum %2d%%  Tmp %2dc", humidity, temperature);
-            lcd_putcmd(0xc0);
-            lcd_puts(buffer);
-            wait(0.5);
+
+            mylcd.cursorpos(0x40);
+            mylcd.printf("Hum %2d%%  Tmp %2dc  ", humidity, temperature);
+            wait_us(500000);
             
-        }else{
-            
-            lcd_putcmd(0x80);
-            lcd_puts("Sensor Error !!!");
-            lcd_putcmd(0xc0);
-            lcd_puts("                ");
-            
-        }
+
     
     }