WiFi_Reconnecting & reset function added

xpod_V3.1.9/Adafruit_PM25AQI.cpp

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+/*!
+ * @file Adafruit_PM25AQI.cpp
+ *
+ * @mainpage Adafruit PM2.5 air quality sensor driver
+ *
+ * @section intro_sec Introduction
+ *
+ * This is the documentation for Adafruit's PM2.5 AQI driver for the
+ * Arduino platform.  It is designed specifically to work with the
+ * Adafruit PM2.5 Air quality sensors: http://www.adafruit.com/products/4632
+ *
+ * These sensors use I2C or UART to communicate.
+ *
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ *
+ * @section author Author
+ * Written by Ladyada for Adafruit Industries.
+ *
+ * @section license License
+ * BSD license, all text here must be included in any redistribution.
+ *
+ */
+
+#include "Adafruit_PM25AQI.h"
+
+/*!
+ *  @brief  Instantiates a new PM25AQI class
+ */
+Adafruit_PM25AQI::Adafruit_PM25AQI() {}
+
+/*!
+ *  @brief  Setups the hardware and detects a valid PMSA003I. Initializes I2C.
+ *  @param  theWire
+ *          Optional pointer to I2C interface, otherwise use Wire
+ *  @return True if PMSA003I found on I2C, False if something went wrong!
+ */
+bool Adafruit_PM25AQI::begin_I2C(TwoWire *theWire) {
+  if (!i2c_dev) {
+    i2c_dev = new Adafruit_I2CDevice(PMSA003I_I2CADDR_DEFAULT, theWire);
+  }
+
+  if (!i2c_dev->begin()) {
+    return false;
+  }
+
+  return true;
+}
+
+/*!
+ *  @brief  Setups the hardware and detects a valid UART PM2.5
+ *  @param  theSerial
+ *          Pointer to Stream (HardwareSerial/SoftwareSerial) interface
+ *  @return True
+ */
+bool Adafruit_PM25AQI::begin_UART(Stream *theSerial) {
+  serial_dev = theSerial;
+
+  return true;
+}
+
+/*!
+ *  @brief  Setups the hardware and detects a valid UART PM2.5
+ *  @param  data
+ *          Pointer to PM25_AQI_Data that will be filled by read()ing
+ *  @return True on successful read, false if timed out or bad data
+ */
+bool Adafruit_PM25AQI::read(PM25_AQI_Data *data) {
+  uint8_t buffer[32];
+  uint16_t sum = 0;
+
+  if (!data) {
+    return false;
+  }
+
+  if (i2c_dev) { // ok using i2c?
+    if (!i2c_dev->read(buffer, 32)) {
+      return false;
+    }
+  } else if (serial_dev) { // ok using uart
+    if (!serial_dev->available()) {
+      return false;
+    }
+    int skipped = 0;
+    while ((skipped < 32) && (serial_dev->peek() != 0x42)) {
+      serial_dev->read();
+      skipped++;
+      if (!serial_dev->available()) {
+        return false;
+      }
+    }
+    if (serial_dev->peek() != 0x42) {
+      serial_dev->read();
+      return false;
+    }
+    // Now read all 32 bytes
+    if (serial_dev->available() < 32) {
+      return false;
+    }
+    serial_dev->readBytes(buffer, 32);
+  } else {
+    return false;
+  }
+
+  // Check that start byte is correct!
+  if (buffer[0] != 0x42) {
+    return false;
+  }
+
+  // get checksum ready
+  for (uint8_t i = 0; i < 30; i++) {
+    sum += buffer[i];
+  }
+
+  // The data comes in endian'd, this solves it so it works on all platforms
+  uint16_t buffer_u16[15];
+  for (uint8_t i = 0; i < 15; i++) {
+    buffer_u16[i] = buffer[2 + i * 2 + 1];
+    buffer_u16[i] += (buffer[2 + i * 2] << 8);
+  }
+
+  // put it into a nice struct :)
+  memcpy((void *)data, (void *)buffer_u16, 30);
+
+  if (sum != data->checksum) {
+    return false;
+  }
+
+  // success!
+  return true;
+}

xpod_V3.1.9/Adafruit_PM25AQI.h

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+/*!
+ * @file Adafruit_PM25AQI.h
+ *
+ * This is the documentation for Adafruit's PM25 AQI driver for the
+ * Arduino platform.  It is designed specifically to work with the
+ * Adafruit PM25 air quality sensors: http://www.adafruit.com/products/4632
+ *
+ * These sensors use I2C or UART to communicate.
+ *
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ * Written by Ladyada for Adafruit Industries.
+ *
+ * BSD license, all text here must be included in any redistribution.
+ *
+ */
+
+#ifndef ADAFRUIT_PM25AQI_H
+#define ADAFRUIT_PM25AQI_H
+
+#include "Arduino.h"
+#include <Adafruit_I2CDevice.h>
+
+// the i2c address
+#define PMSA003I_I2CADDR_DEFAULT 0x12 ///< PMSA003I has only one I2C address
+
+/**! Structure holding Plantower's standard packet **/
+typedef struct PMSAQIdata {
+  uint16_t framelen;       ///< How long this data chunk is
+  uint16_t pm10_standard,  ///< Standard PM1.0
+      pm25_standard,       ///< Standard PM2.5
+      pm100_standard;      ///< Standard PM10.0
+  uint16_t pm10_env,       ///< Environmental PM1.0
+      pm25_env,            ///< Environmental PM2.5
+      pm100_env;           ///< Environmental PM10.0
+  uint16_t particles_03um, ///< 0.3um Particle Count
+      particles_05um,      ///< 0.5um Particle Count
+      particles_10um,      ///< 1.0um Particle Count
+      particles_25um,      ///< 2.5um Particle Count
+      particles_50um,      ///< 5.0um Particle Count
+      particles_100um;     ///< 10.0um Particle Count
+  uint16_t unused;         ///< Unused
+  uint16_t checksum;       ///< Packet checksum
+} PM25_AQI_Data;
+
+/*!
+ *  @brief  Class that stores state and functions for interacting with
+ *          PM2.5 Air Quality Sensor
+ */
+class Adafruit_PM25AQI {
+public:
+  Adafruit_PM25AQI();
+  bool begin_I2C(TwoWire *theWire = &Wire);
+  bool begin_UART(Stream *theStream);
+  bool read(PM25_AQI_Data *data);
+
+private:
+  Adafruit_I2CDevice *i2c_dev = NULL;
+  Stream *serial_dev = NULL;
+  uint8_t _readbuffer[32];
+};
+
+#endif