Diff: main.cpp

Revision:

0:74ce8bfddd4a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jun 09 06:25:36 2021 +0000
@@ -0,0 +1,67 @@
+#include "mbed.h"
+#include "DHT.h"
+#include "TextLCD.h"    // LCD1602
+ 
+DHT sensor(PB_3, DHT11);
+Serial pc(SERIAL_TX, SERIAL_RX);
+ 
+ // LCD pins
+TextLCD lcd(D2, D3, D9, D10, D11, D12);
+
+// diplay text on LCD
+void textLCD(char *text, int line) {
+    char tmpBuf[16];
+    for (int i = 0; i < 16; i++) tmpBuf[i] = 0x20;
+    for (int i = 0; i < strlen(text); i++) {
+        if (i < 16) tmpBuf[i] = text[i];
+    }
+    
+    lcd.locate(0, line);
+    lcd.printf(tmpBuf);
+}
+
+
+int main()
+{
+    int error = 0;
+    float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f;
+    pc.baud(9600);
+    lcd.cls();
+    char tmpString[16];
+    char tmpString2[16];
+    int iKey = 0;
+    int oldiKey = 0;
+    int temp_format = 0;
+    int humid_format = 0;
+    
+    while(1) {  
+        wait(2.0f);
+        error = sensor.readData();
+        if (0 == error) {
+            c   = sensor.ReadTemperature(CELCIUS);
+            f   = sensor.ReadTemperature(FARENHEIT);
+            k   = sensor.ReadTemperature(KELVIN);
+            h   = sensor.ReadHumidity();
+            dp  = sensor.CalcdewPoint(c, h);
+            dpf = sensor.CalcdewPointFast(c, h);
+            pc.printf("Temperature in Kelvin: %4.2f, Celcius: %4.2f, Farenheit %4.2f\r\n", k, c, f);
+            pc.printf("Humidity is %4.2f, Dewpoint: %4.2f, Dewpoint fast: %4.2f\r\n", h, dp, dpf);
+            pc.printf("Tempformat: %d HumidFormat: %d\r\n", temp_format, humid_format);
+            switch(temp_format) {
+                case 0 : sprintf(tmpString, " Temp: %4.2fC", c); break;
+//                case 1 : sprintf(tmpString, " Temp: %4.2fF", f); break;
+//                case 2 : sprintf(tmpString, " Temp: %4.2fK", k); break;
+            }     
+            textLCD(tmpString, 1);
+            switch(humid_format) {
+                case 0 : sprintf(tmpString2, "Humid: %4.2f", h); break;
+//                case 1 : sprintf(tmpString2, "Dewpoint: %4.2f", dp); break;
+//                case 2 : sprintf(tmpString2, "DewpFast: %4.2f", dpf); break;
+            }                   
+            textLCD(tmpString2, 0);            
+        } else {
+            pc.printf("Error: %d\n", error);
+            textLCD("Error", 0);
+        }
+    }
+}
\ No newline at end of file