pressure: create state for reading pressure

esp-vent-main/inc/PressureWrapper.h

@@ -13,13 +13,13 @@
 
 #define ADDRESS 0x40
 
-
 /**
  * @brief structure to hold a raw data from
  * the pressure sensor
  */
 
-typedef struct _PRESSURE{
+typedef struct _PRESSURE
+{
   uint8_t rBuffer[2];
   uint8_t crc;
 } PRESSURE_DATA;
@@ -33,6 +33,20 @@ public:
    */
   int getPressure ();
 
+  /**
+   * @brief Check if sensor is ready
+   *
+   * @return true if awake
+   * @return false if asleep
+   */
+  bool isAwake ();
+
+  /**
+   * @brief Wake the sensor up
+   *
+   */
+  void wakeUp ();
+
   virtual ~PressureWrapper ();
 
 private:

esp-vent-main/inc/StateHandler/StateHandler.h

@@ -132,6 +132,7 @@ private:
   LiquidCrystal *_lcd;
   ModbusRegister *A01;
   PressureWrapper *pressure;
+  bool pressure_status;
   Timer *state_timer;
   /* CO2 sensor object */
   GMP252 co2;

esp-vent-main/src/PressureWrapper.cpp

@@ -8,15 +8,21 @@
 #include "PressureWrapper.h"
 #include <cstdio>
 
-static uint8_t crc8(uint8_t *data, size_t size) {
+static uint8_t
+crc8 (uint8_t *data, size_t size)
+{
   uint8_t crc = 0x00;
   uint8_t byteCtr;
   // calculates 8-Bit checksum with given polynomial
-	for (byteCtr = 0; byteCtr < size; ++byteCtr) {
+  for (byteCtr = 0; byteCtr < size; ++byteCtr)
+    {
       crc ^= (data[byteCtr]);
-		for (uint8_t bit = 8; bit > 0; --bit) {
+      for (uint8_t bit = 8; bit > 0; --bit)
-			if (crc & 0x80) crc = (crc << 1) ^ 0x131; //P(x)=x^8+x^5+x^4+1 = 0001 0011 0001
+        {
-			else crc = (crc << 1);
+          if (crc & 0x80)
+            crc = (crc << 1) ^ 0x131; // P(x)=x^8+x^5+x^4+1 = 0001 0011 0001
+          else
+            crc = (crc << 1);
         }
     }
   return crc;
@@ -35,15 +41,20 @@ PressureWrapper::~PressureWrapper ()
   // TODO Auto-generated destructor stub
 }
 
-int PressureWrapper::getPressure() {
+int
+PressureWrapper::getPressure ()
+{
   int16_t pressure = 0;
-	if(!getRawPressure ()) {
+  if (!getRawPressure ())
+    {
       unsigned int i = 0;
-		while(i<7200) i++;
+      while (i < 7200)
+        i++;
       getRawPressure ();
       i = 0;
     }
-	if(crc8(data.rBuffer, 2) == data.crc){
+  if (crc8 (data.rBuffer, 2) == data.crc)
+    {
       pressure = data.rBuffer[0];
       pressure = pressure << 8;
       pressure |= data.rBuffer[1];
@@ -53,9 +64,20 @@ int PressureWrapper::getPressure() {
   return -255;
 }
 
-bool PressureWrapper::getRawPressure () {
+bool
+PressureWrapper::isAwake ()
+{
+  return true;
+}
+
+void
+PressureWrapper::wakeUp ()
+{
+}
+
+bool
+PressureWrapper::getRawPressure ()
+{
   uint8_t getMeasurementComm = 0xF1;
   return (i2c->transaction (ADDRESS, &getMeasurementComm, 1, data.rBuffer, 3));
 }
-
-

esp-vent-main/src/StateHandler/StateHandler.cpp

@@ -202,13 +202,22 @@ StateHandler::stateGetPressure (const Event &event)
   switch (event.type)
     {
     case Event::eEnter:
+      pressure_status = pressure->isAwake ();
       break;
     case Event::eExit:
       break;
     case Event::eKey:
+      handleControlButtons (event.value);
       break;
     case Event::eTick:
-
+      if (pressure_status)
+        {
+          save (pressure->getPressure (), ((current_mode) ? AUTO : MANUAL));
+        }
+      else
+        {
+          pressure->wakeUp ();
+        }
       break;
     }
 }