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mikroSDK Library

Temp-Hum 2 click

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Author: MikroElektronika Team

Last Updated: 2018-04-30

Category: Measurement

Downloaded: 44 times

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Temp-Hum 2 click is a smart temperature and humidity sensor click board, packed with features, that allow easy and simple integration into any design that requires accurate and reliable humidity and temperature measurements.

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mikroSDK Library Blog

Temp&amp;Hum 2 click

Temp&Hum 2 click

Native view of the Temp&Hum 2 click board.

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Temp&amp;Hum 2 click

Temp&Hum 2 click

Front and back view of the Temp&Hum 2 click board.

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Library Description

The library initializes and defines the I2C bus driver and drivers that offer a choice for writing data in the register. The library includes the function for reads query device, electronic ID, firmware revision, temperature and humidity data. The user can select the measurement mode and set the Heater.

Key functions :

void temphum2_setMode(uint8_t selectMode, uint8_t speedMode) - Functions for set measurement mode
void temphum2_getMeasurement( float *dataBuffer ) - Functions for measurement
void temphum2_writeByte(uint8_t reg, uint8_t _data) - Functions for write one byte in register

Example description

The application is composed of three sections:

  • System Initialization - Initializes I2C module.
  • Application Initialization - Initializes driver init, set work mode and Heater.
  • Application Task - (code snippet) - Reads temperature and humidity and logs values on usbuart for every 500ms.
void applicationTask()
{
 temphum2_getMeasurement( &dataBuffer[0] );

 mikrobus_logWrite( " --- Temperature : ", _LOG_TEXT);
 FloatToStr( dataBuffer[0] , dataText);
 mikrobus_logWrite(dataText, _LOG_TEXT);
 mikrobus_logWrite( " C", _LOG_LINE);

 mikrobus_logWrite( " --- Humidity : ", _LOG_TEXT);
 FloatToStr( dataBuffer[1] , dataText);
 mikrobus_logWrite(dataText, _LOG_TEXT);
 mikrobus_logWrite( " %RH", _LOG_LINE);

 Delay_ms( 500 );
}

mikroE Libraries used in the example:

  • Conversions
  • I2C
  • UART

Additional notes and information

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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