Diff: main.cpp

Revision:

0:0cf9262fc2b2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Mar 20 13:11:21 2017 +0000
@@ -0,0 +1,83 @@
+#include "mbed.h"
+#include "HX711.h"
+#include "ESP8266.h"
+
+ESP8266 esp(PTC4,PTC3,9600);
+DigitalIn hx711input(D5);
+DigitalOut green(LED2);
+DigitalOut red(LED1);
+Serial pc(USBTX, USBRX);    // USB Serial Terminal
+
+HX711 scale(D5,D13);
+char rs[100],rcv[100];
+int averageSamples = 100;
+float calibration_factor = 1000;
+int main(void)
+{
+    pc.baud(9600);
+    pc.printf("Starting Scale\r\n");
+    //wait(0.2f);
+   // pc.printf("HX711 calibration sketch\r\n");
+    //wait(0.2f);
+    pc.printf("Remove all weight from scale\r\n");
+    //wait(0.2f);
+    pc.printf("After readings begin, place known weight on scale\r\n");
+    //wait(0.2f);
+    
+      
+    scale.setScale(0);
+    scale.tare(); //Reset the scale to 0
+    
+    //long zero_factor = scale.averageValue(averageSamples); //Get a baseline reading
+   // pc.printf("Zero factor: %.4f\r\n" , zero_factor); //This can be used to remove the need to tare the scale. Useful in permanent scale projects.
+    
+     while (true) {
+          scale.setScale(calibration_factor); 
+         float weight = scale.getGram();
+         
+         
+        //float raw = scaleRaw.read();
+        if (weight >5 && weight <10)
+        weight = 50;
+        else if (weight >10 && weight <15)
+        weight = 100;
+        else if (weight >15 && weight <25)
+        weight = 100;
+        else if (weight >25 && weight <30)
+        weight = 200;
+        else if (weight >30 && weight <50)
+        weight = 300;
+        else if (weight >50 && weight <70)
+        weight = 400;
+        else if (weight >70 && weight <75)
+        weight = 500;
+        else if (weight >145 && weight <150)
+        weight = 1000;
+        
+        pc.printf("Reading: %.2f gms \r\n", weight);
+        pc.printf(" calibration_factor: %.2f\r\n", calibration_factor);
+        if(pc.readable()) {
+            char temp = pc.getc();
+            if(temp == '+' || temp == 'a')
+               calibration_factor += 10;
+            else if(temp == '-' || temp == 'z')
+                calibration_factor -= 10;
+            }
+       sprintf(rs,"&pr=%.3f", weight);
+       esp.SendCMD(rs);
+       esp.RcvReply(rcv, 1000);
+        //pc.printf("%s", rcv);
+        wait(1);
+       /* if(hx711input > 2000)
+        {
+            green = !green;
+            wait(0.2);
+        }
+        else 
+        {   red=!red;
+           wait(0.2);
+            }
+        //pc.printf("Raw Value: %.7f\n", raw);*/
+        // wait(0.2);
+    }
+}
\ No newline at end of file