POC Breath using SMD commercial sensors

Dependencies:   iAQ_Core Adafruit_SGP30_mbed mbed BME680

Revision:
0:d034cdad5b6d
Child:
1:08bbc3ecd836
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 30 08:26:56 2019 +0000
@@ -0,0 +1,28 @@
+#include "mbed.h"
+#include <SoftSerial.h>
+
+Serial ble(A4,A5);
+AnalogIn flowIn(A2);
+
+float flowVal1;
+float flowVal2;
+float Pressure;
+float finalflow;
+
+float flow()
+{
+   flowVal1=3.3*flowIn; //Logic level 3.3
+          flowVal2 = 1.5*flowVal1; //5v
+          Pressure =(125*flowVal2)-62.5;
+          finalflow=(0.1989*sqrt(Pressure))+0.0284; //flow in litter per min
+          return finalflow;
+
+}
+
+int main(){       
+ble.baud(9600);
+    while(1){
+        ble.printf("E2.7, %f, 3.3\n", flow());     
+        } 
+
+}