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mikroSDK Library

Ammeter click

Rating:

1

Author: MIKROE

Last Updated: 2019-05-03

Package Version: 1.0.0.1

mikroSDK Library: 1.0.0.0

Category: Measurements

Downloaded: 5152 times

Not followed.

License: MIT license  

Ammeter click is a mikroBUS add-on board with circuitry for measuring electric current ( both AC and DC ).

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  • mikroSDK Library 2.0.0.0
  • Comments (3)
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mikroSDK Library Blog

Front / Back View

Front / Back View

Ammeter front and back view

View full image

Library Description

The library covers all the necessary functions that enables the usage of the Ammeter click board.
It offers reading from output register and calculations that result in relatively accurate amperage value.

Key functions:

  • uint16_t ammeter_amperage() - Function is used to measure amperage of a power consumer connected to the click board.
  • uint16_t ammeter_getRawData() - Function is used to read raw data value from output register.
  • uint16_t ammeter_dataRead() - Function is used to read data from output register.

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes SPI module, LOG and GPIO structures, sets CS pin as output and AN pin as input.
  • Application Initialization - Initalizes SPI driver and makes an initial log.
  • Application Task - This is an example that shows the capabilities of the Ammeter click by measuring amperage in miliampers. Ammeter click board can be used to saftly measure current up to 1A both AC and DC, in the case of AC, for peak to peak value. It is important to notice that this click board has its' own electronic circuit, and may not be powered from the same source which we are measuring. Result will not be correct in that case.
void applicationTask( )
{
    amperage = ammeter_amperage();
    IntToStr( amperage, logTxt );
    mikrobus_logWrite( " Amperage: ", _LOG_TEXT );
    mikrobus_logWrite( logTxt, _LOG_TEXT );
    mikrobus_logWrite( "mA ", _LOG_LINE );
    mikrobus_logWrite( "-----------------------", _LOG_LINE );
    Delay_ms( 1000 );
}

Other mikroE Libraries used in the example:

  • SPI
  • UART
  • Conversions

Additional notes and informations

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.

Schematic

Schematic

Ammeter click schematic

View full image

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