Diff: Sensors/Sensors.cpp

Revision:

73:f6f378311c8d

Child:

74:d281aaef9766

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Sensors/Sensors.cpp	Mon Jul 30 16:48:48 2018 +0000
@@ -0,0 +1,24 @@
+#include "Sensors.hpp"
+#include "StaticDefs.hpp"
+
+Sensors::Sensors() {
+    _reference_voltage = 5.0;   //check this against actual v_ref
+}  
+  
+    // extrapolated from graph if V_s = 5.0
+    // https://www.nxp.com/docs/en/data-sheet/MPXA6115A.pdf   
+float Sensors::getInternalPressurePSI() {
+    return ( ( 22.029 * ( _reference_voltage * adc().readCh5() / 4095.0 ) + 10.884 ) * 0.145038 ); // Press_Xducer (on-board)
+}
+
+float Sensors::getVoltageInput() {
+    return ( adc().readCh6() / 4095.0 * _reference_voltage * 7.8 );
+}
+
+float Sensors::getCurrentInput() {
+    return ( adc().readCh7() / 4095.0 * _reference_voltage );
+}
+
+float Sensors::getAltimeterChannelReadings() {
+    return adc().readCh5();
+}
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