Diff: AHT20.h

Revision:

2:ec96fb27c02d

Parent:

0:a7e98be43098

--- a/AHT20.h	Tue Feb 08 17:59:29 2022 +0000
+++ b/AHT20.h	Tue Feb 08 19:39:29 2022 +0000
@@ -22,7 +22,106 @@
 /**
     Example:
 @code
+#include "mbed.h"
+#include "AHT20.h"
 
+AHT20 myAHT20   ( I2C_SDA, I2C_SCL, AHT20::AHT20_ADDRESS, 100000 );
+Serial pc       ( USBTX, USBRX );
+
+DigitalOut  myled ( LED1 );
+Ticker      newReading;
+
+
+//@brief Variables.
+uint32_t    myState = 0UL;
+
+//@brief   FUNCTION PROTOTYPES
+void    changeDATA     ( void );
+
+
+
+//@brief FUNCTION FOR APPLICATION MAIN ENTRY.
+int main()
+{
+    AHT20::AHT20_user_data_t    myAHT20_Data;
+    AHT20::AHT20_status_t       aux;
+
+    pc.baud ( 115200 );
+
+    myled   =   1;
+    wait(3);
+    myled   =   0;
+
+    // Reset the device
+    aux  =   myAHT20.AHT20_SoftReset ();
+    wait_ms(80);
+
+    // Get the state byte
+    aux  =   myAHT20.AHT20_TriggerStatus ();
+    wait_ms(80);
+
+    aux  =   myAHT20.AHT20_GetStatus ( (uint8_t*)&myAHT20_Data.state );
+
+    // Check if the device is calibrated
+    if ( ( myAHT20_Data.state & AHT20::STATUS_CAL_MASK ) == AHT20::STATUS_CAL_UNCALIBRATED ) {
+        // Calibrate the sensor
+        aux  =   myAHT20.AHT20_Calibrate ();
+    }
+
+    newReading.attach( &changeDATA, 1 );                                        // the address of the function to be attached ( changeDATA ) and the interval ( 1s )
+
+    // Let the callbacks take care of everything
+    while(1) {
+        sleep();
+
+        myled = 1;
+
+        if ( myState == 1UL ) {
+            // Trigger a new measurement data
+            aux  =  myAHT20.AHT20_TriggerMeasurement ();
+            wait_ms(80);
+
+            // Get the temperature value
+            aux  =  myAHT20.AHT20_GetAllData ( (AHT20::AHT20_user_data_t*)&myAHT20_Data );
+
+            // Process the temperature data
+            myAHT20_Data.temperature.temperature = myAHT20.AHT20_ProcessTemperature ( myAHT20_Data.temperature.raw_temperature );
+
+            // Process the humidity data
+            myAHT20_Data.humidity.humidity = myAHT20.AHT20_ProcessHumidity ( myAHT20_Data.humidity.raw_humidity );
+
+            // Transmit result over the UART
+            pc.printf( "Temp: %0.2f C | RH: %0.3f %%\r\n", myAHT20_Data.temperature.temperature, myAHT20_Data.humidity.humidity  );
+
+            myState  =   0UL;                                                   // Reset the variable
+        }
+
+        myled = 0;
+    }
+}
+
+
+// @brief       changeDATA ( void  )
+//
+// @details     It changes myState variable
+//
+// @param[in]    N/A
+//
+// @param[out]   N/A.
+//
+//
+// @return       N/A.
+//
+//
+// @author      Manuel Caballero
+// @date        08/February/2022
+// @version     08/February/2022   The ORIGIN
+// @pre         N/A
+// @warning     N/A.
+void changeDATA ( void )
+{
+    myState = 1UL;
+}
 @endcode
 */
 
@@ -37,7 +136,7 @@
     * @brief   DEFAULT ADDRESS
     */
     typedef enum {
-        AHT20_ADDRESS     =   0x38                      /*!<   AHT20 I2C Address                    */
+        AHT20_ADDRESS     =   ( 0x38 << 1U )           /*!<   AHT20 I2C Address                    */
     } AHT20_address_t;