Reading temps requieres review readDeg function

my-tclab-firmware.ino

@@ -1,11 +1,46 @@
+#include<Arduino.h>
+
+// vars and pins at TCLab
+const int LED = 9;
+const int T1 = A0; // temperature sensor T1 input
+const int T2 = A2; // temperature sensor T2 input
+const int Q1 = 3; // PWM at Q1 (output)
+const int Q2 = 5; // PWM at Q2 (output) 
+
+
+// vars and constants:
+int T1Val;
+int T2Val;
+const int nAvg = 10; // samples per reading
+const long BAUD = 115200; // Freq serial comm
+const float factor = 3.3/1024*100; // 3.3V/1024
+
+// functions
+
+float readDeg(int channel) {
+  float acc = 0;
+  for(int i=0;i<=nAvg;i++) {
+    acc += analogRead(channel)*factor-50;
+  }
+  return acc/nAvg;
+}
+
 
 
 void setup() {
   // put your setup code here, to run once:
-
+  pinMode(LED, OUTPUT);
+  analogReference(EXTERNAL);
+  Serial.begin(BAUD);
+  delay(100);
+  Serial.println("Temps");
 }
 
 void loop() {
   // put your main code here, to run repeatedly:
-
+  float t1Val = readDeg(T1);
+  float t2Val = readDeg(T2);
+  Serial.print(t1Val,4); Serial.print(',');
+  Serial.println(t2Val,4);
+  delay(250);
 }