arduinoprojects

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Example8_Core.ino (3115B)

      1 /******************************************************************************
      2   Core
      3 
      4   Marshall Taylor @ SparkFun Electronics
      5 
      6   April 4, 2017
      7 
      8   https://github.com/sparkfun/CCS811_Air_Quality_Breakout
      9   https://github.com/sparkfun/SparkFun_CCS811_Arduino_Library
     10 
     11   This example shows how the normally hidden core class operates the wire interface.
     12 
     13   The class 'CCS811Core' abstracts the wire library and contains special hardware
     14   functions, and is normally not needed.
     15 
     16   Use this sketch to test the core of the library, or inherit it with your own
     17   functions for performing CCS811 operations.
     18 
     19   Hardware Connections (Breakoutboard to Arduino):
     20   3.3V to 3.3V pin
     21   GND to GND pin
     22   SDA to A4
     23   SCL to A5
     24 
     25 
     26   Resources:
     27   Uses Wire.h for i2c operation
     28 
     29   Development environment specifics:
     30   Arduino IDE 1.8.1
     31 
     32   This code is released under the [MIT License](http://opensource.org/licenses/MIT).
     33 
     34   Please review the LICENSE.md file included with this example. If you have any questions
     35   or concerns with licensing, please contact techsupport@sparkfun.com.
     36 
     37   Distributed as-is; no warranty is given.
     38 ******************************************************************************/
     39 #include <Wire.h>
     40 
     41 #include "SparkFunCCS811.h" //Click here to get the library: http://librarymanager/All#SparkFun_CCS811
     42 
     43 #define CCS811_ADDR 0x5B //Default I2C Address
     44 //#define CCS811_ADDR 0x5A //Alternate I2C Address
     45 
     46 CCS811Core mySensor(CCS811_ADDR);
     47 
     48 void setup()
     49 {
     50   Serial.begin(115200);
     51   Serial.println();
     52   Serial.println("CCS811 Core Example");
     53 
     54   Wire.begin();
     55 
     56   //This setup routine is similar to what is used in the subclass' .begin() function
     57   CCS811Core::CCS811_Status_e returnCode = mySensor.beginCore(Wire); //Pass in the Wire port you want to use
     58   Serial.print("beginCore exited with: ");
     59   switch (returnCode)
     60   {
     61   case CCS811Core::CCS811_Stat_SUCCESS:
     62     Serial.print("SUCCESS");
     63     break;
     64   case CCS811Core::CCS811_Stat_ID_ERROR:
     65     Serial.print("ID_ERROR");
     66     break;
     67   case CCS811Core::CCS811_Stat_I2C_ERROR:
     68     Serial.print("I2C_ERROR");
     69     break;
     70   case CCS811Core::CCS811_Stat_INTERNAL_ERROR:
     71     Serial.print("INTERNAL_ERROR");
     72     break;
     73   case CCS811Core::CCS811_Stat_GENERIC_ERROR:
     74     Serial.print("GENERIC_ERROR");
     75     break;
     76   default:
     77     Serial.print("Unspecified error.");
     78   }
     79 
     80   //Write to this register to start app
     81   Wire.beginTransmission(CCS811_ADDR);
     82   Wire.write(CSS811_APP_START);
     83   Wire.endTransmission();
     84 }
     85 
     86 void loop()
     87 {
     88   uint8_t arraySize = 10;
     89   uint8_t tempData[arraySize];
     90 
     91   tempData[0] = 0x18;
     92   tempData[1] = 0x27;
     93   tempData[2] = 0x36;
     94   tempData[3] = 0x45;
     95 
     96   mySensor.multiWriteRegister(0x11, tempData, 2);
     97 
     98   tempData[0] = 0x00;
     99   tempData[1] = 0x00;
    100   tempData[2] = 0x00;
    101   tempData[3] = 0x00;
    102 
    103   mySensor.multiReadRegister(0x11, tempData, 3);
    104 
    105   for (int i = 0; i < arraySize; i++)
    106   {
    107     if (i % 8 == 0)
    108     {
    109       Serial.println();
    110       Serial.print("0x");
    111       Serial.print(i, HEX);
    112       Serial.print(":");
    113     }
    114 
    115     Serial.print(tempData[i], HEX);
    116     Serial.print(" ");
    117   }
    118 
    119   Serial.println("\n");
    120   delay(1000); //Wait for next reading
    121 }