removed last remaining float, cleaned up unused vars

firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/Pyr0_Piezo_Sensor_v2.x.x.ino

@@ -39,13 +39,11 @@ To change comparator trigger high threshold: VCOMP [float value]
 
 
 These commands should be wrapped in this format: 
-<CMD, INT, FLOAT>
-
-You must include the unused variable for each instance. 
+<CMD, INT>
 
 Examples:
-<GAIN_F, 3, 0.00>
-<VADJ, 0, 2.35>
+<GAIN_F, 3> <~ set gain factor to index 3 (6x)
+<VADJ, 2350> <~ set the vref floor to 2.35V
 
 *Note for Gain Factor:
 The gain STATE is representative of these values:
@@ -63,13 +61,15 @@ int LOOP_DUR = 50;        // duration of time between ADC checks and other loop
 int TRG_DUR = 20;             // duration of the Z-axis pulse sent, in ms
 #define senseThrs 1450
 #define compThrs 2850
-int dAdjFac = 1;		        // adjustment divider. Higher number will cause the DAC output to adjust more slowly.
 int Hyst = 20;                 // Hysteresis value for ADC measurements
 
 /*------------------------------------------------------------*/
 
 // Debug output toggle. Uncomment to enable
 #define DEBUG true
+
+/*  Debug output verbose mode will continuously output sensor readings
+    rather than waiting for user input */
 //#define VERBOSE true
 
 // Headers, variables, and functions
@@ -79,7 +79,7 @@ int Hyst = 20;                 // Hysteresis value for ADC measurements
 #include "pP_serial.h"
 
 // i2c input toggle. Uncomment to enable
-//#define I2C true
+#define I2C true
 #ifdef I2C
   #include "pP_i2c.h"
 #endif
@@ -90,19 +90,17 @@ void setup() {
   pinMode(Z_TRG, INPUT_PULLUP);   // declare z-sense input with pullup
   pinMode(V_FOLLOW_PIN, INPUT);
   pinMode(VCOMP_SENSE_PIN, INPUT);
-  pinMode(GADJ_R0, INPUT); // declare input to break pull to ground
-  pinMode(GADJ_R1, INPUT); // declare input to break pull to ground
-  pinMode(GADJ_R2, INPUT); // declare input to break pull to ground
-  pinMode(GADJ_R3, INPUT); // declare input to break pull to ground
+  pinMode(GADJ_R0, INPUT);        // declare input to set high impedance
+  pinMode(GADJ_R1, INPUT);        // declare input to set high impedance
+  pinMode(GADJ_R2, INPUT);        // declare input to set high impedance
+  pinMode(GADJ_R3, INPUT);        // declare input to set high impedance
   Serial.begin(9600);
 
   attachInterrupt(digitalPinToInterrupt(Z_TRG), pulse, FALLING);
 
   Serial.println("Initializing Pyr0-Piezo Sensor...");
-  
 }
 
-
 /*------------------------------------------------*/
 
 void loop() {
@@ -136,7 +134,7 @@ void loop() {
   }
   
   // Voltage Comparator adjustment
-  if (VLast > Hyst || VLast > -Hyst) {
+  if (VLast > Hyst || VLast < -Hyst) {
     adjustComp();
   }
 

firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_function.h

@@ -60,12 +60,11 @@ long readVcc() {
   /* Compares diffs of threshold vs read value
    if positive, adjusts the follower to within
    the range set above*/
-    
   ADJ_FOLLOW = (senseInt / 4);
 
   // Analog output (PWM) of duty cycle
   analogWrite(V_FOL_PWM, ADJ_FOLLOW);
-  }
+}
 
 /*------------------------------------------------*/
 

firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_i2c.h

@@ -1,5 +1,14 @@
 #include <Wire.h>
 
+/*------------------------------------------------*/
+#ifdef I2C
+  void i2cReply() {
+    if (serialIncoming) {
+      Wire.write("OK");
+    }
+  }
+#endif
+
 /*------------------------------------------------*/
 
 #ifdef I2C
@@ -14,12 +23,3 @@
 	  }
 	}
 #endif
-
-/*------------------------------------------------*/
-#ifdef I2C
-  void i2cReply() {
-    if (serialIncoming) {
-      Wire.write("OK");
-    }
-  }
-#endif

firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_serial.h

@@ -13,9 +13,6 @@ void parseData() {
   strtokIndx = strtok(NULL, ",");   // this continues where the previous call left off
   serialInt = atoi(strtokIndx);     // convert this part to an integer
 
-  strtokIndx = strtok(NULL, ","); 
-  serialFloat = atof(strtokIndx);     // convert this part to a float
-
 }
 /*------------------------------------------------*/
 
@@ -84,7 +81,7 @@ void updateGainFactor() {
 
 void updateVComp() {
   if (serialInt >= 0) {
-    compInt = (serialFloat * 1024) / Vin;
+    compInt = serialInt;
     //senseInt = compInt; // syncing these params til #24 is fixed
   }
 }
@@ -92,7 +89,7 @@ void updateVComp() {
 
 void updateVAdj() {
   if (serialInt >= 0) {
-    senseInt = (serialFloat * 1024) / Vin;
+    senseInt = serialInt;
     //compInt = senseInt; // syncing these params til #24 is fixed
   }
 }
@@ -105,8 +102,6 @@ void updateHysteresis() {
 }
 /*------------------------------------------------*/
 
-/*------------------------------------------------*/
-
 void updateParams() {
   if (strcmp(serialMessageIn, "TRG_D") == 0) {
     updateTrigDuration();
@@ -120,8 +115,13 @@ void updateParams() {
   else if (strcmp(serialMessageIn, "VADJ") == 0) {
     updateVAdj();
   }
+  else if (strcmp(serialMessageIn, "HYST") == 0) {
+  updateHysteresis();
+  }
 }
 
+/*------------------------------------------------*/
+
 void serialInput() {
 
   // receive data from Serial and save it into inputBuffer
@@ -152,12 +152,6 @@ void serialReply() {
     Serial.print(" ");
     Serial.println(compInt);
 
-    Serial.print("Diff");
-    Serial.print(" ");
-    Serial.print(diffCompL);
-    Serial.print(" ");
-    Serial.println(diffCompH);
-    
     Serial.print("Amp Sense:");
     Serial.print(VAdj);
     Serial.print(" ");
@@ -166,11 +160,6 @@ void serialReply() {
     Serial.print(" ");
     Serial.println(senseInt);
 
-    Serial.print("Diff");
-    Serial.print(" ");
-    Serial.print(diffAdjL);
-    Serial.print(" ");
-    Serial.println(diffAdjH);
   #endif
   
   Serial.print("Delay:");

firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/pP_volatile.h

@@ -38,4 +38,3 @@ bool readInProgress = false;
 bool serialIncoming = false;
 char serialMessageIn[buffSize] = {0};
 int serialInt = 0;
-float serialFloat = 0.00;