Mark Schwarzer / Mbed 2 deprecated Schwarzer_A5_1_Temperature

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Dependencies:   mbed

Diff: main.cpp

Revision:
4:657329790c52
Parent:
3:b755f0cf35bc
Child:
5:265e04e0cc1d
diff -r b755f0cf35bc -r 657329790c52 main.cpp
--- a/main.cpp	Fri Oct 16 01:41:49 2020 +0000
+++ b/main.cpp	Fri Oct 16 01:57:25 2020 +0000
@@ -6,23 +6,32 @@
 DigitalOut led3(LED3);
 AnalogIn aI(p19);
 DigitalIn switch_input(p17);
-float T;
-float V;
+float T; //temp
+float V;  //voltage
+float m;  //varibale in equation defined
+float a;
+float i;
+float n;
 
 int main() {
+    V=(3.3); //Vref
+    m=-1481.96;
+    a=1.8639;
+    i=3.88e-6;
+    n=2.1962e6;
 
 V=aI.read_u16();
-T = -1481.96+ sqrt((2.1962e6)+((1.8639-V)/3.88e-6)));
+T=(m+(sqrt(n+(a-V)/(i)))); //Temp equation
 pc.printf("V=%f\r\n", V );
 
 while(1) {
     if (25>=T>20) {
         led1=1;
-        pc.printf("T=%d\r\n", T ); }
+        pc.printf("T=%f\r\n", T ); }
     else if (30>=T>25) {
         led2=1;
         led1=0;
-        pc.printf("T=%d\r\n", T ); }
+        pc.printf("T=%f\r\n", T ); }
     else (T>30) {
         led3=1;
         led2=0;