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--- vatt:mirror_cell_thermal_reader [2014/09/03 09:45]
scott
+++ vatt:mirror_cell_thermal_reader [2014/09/03 10:11] (current)
scott
@@ Line 1: / Line 1: @@
 =====VATT Thermal System=====
-The VATT Thermal System is controlled by an Arduino Mega board located in the mirror cell. It is connected to 7 analog 8D590K thermal sensors. Four of these sensors are located on the telescope struts and 3 are in the mirror cell. The Arduino board communicates with vatttel through an RS-232 serial port. vatttel (TCS) requests the thermal information from each thermal sensor over the serial port by sending a 't' followed a carriage return '\r'. The arduino board then sends a string of white space separated temperatures.
+The VATT Thermal System is controlled by an Arduino Mega board located in the mirror cell. It is connected to 7 analog AD 590K thermal sensors. Four of these sensors are located on the telescope struts and 3 are in the mirror cell. The Arduino board communicates with vatttel through an RS-232 serial port. vatttel (TCS) requests the thermal information from each thermal sensor over the serial port by sending a 't' followed a carriage return '\r'. The arduino board then sends a string of white space separated temperatures.
@@ Line 69: / Line 69: @@
 //Offsets. Most of this is counter-acting the hard coded offsets in
 //vatttel
-float temp_offsets[NCHAN] = {0.4, 2.7, 0.4, 1.5, 3.3, 3.3, 1.5, 0.0};
+float temp_offsets[NCHAN] = {0.4, 2.7, 0.4, -1.5, 3.3, 3.3, -1.5, 0.0};
@@ Line 193: / Line 193: @@
     {
       toggle13();//toggle the light for debug
-      Serial3.print('t\r');
+      //Serial3.print('t\r');
+      //vatttel expects an echo.
+      printTemps( adc );
       printTemps( adc );

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