N K / Mbed 2 deprecated analoghalls5_5

working-est copy with class-based code. still open loop

Dependencies:   mbed

Fork of analoghalls6 by N K

Diff: currentsensors.cpp

Revision:
6:99ee0ce47fb2
Parent:
1:1f58bdcf2956
Child:
7:76d6ceb23e0d
--- a/currentsensors.cpp	Tue Mar 03 06:28:10 2015 +0000
+++ b/currentsensors.cpp	Wed Mar 04 15:33:32 2015 +0000
@@ -8,7 +8,11 @@
 }
 
 void AnalogCurrentSensor::Zero() {
-    _zero_level = (float) *_in;
+    float mean = 0;
+    for(int i = 1; i<=1000; i++){
+        mean = 0.1f*((float) *_in) + 0.9f*mean;
+    }
+    _zero_level = mean;
 }
 
 float AnalogCurrentSensor::GetCurrent() {