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Author: MIKROE
Last Updated: 2019-05-03
Package Version: 1.0.0.1
mikroSDK Library: 1.0.0.0
Category: Current sensor
Downloaded: 8081 times
Followed by: 2 users
License: MIT license
This project is a simple demonstration of working with the <b>Current Click</b> board
based on the MCP3201 12-bit Analog-to-Digital Converter (ADC) with SPI Interface.
This example demosntrates measuring the current drawn by the consumer using a shunt resistor.
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Current click is s a compact and easy solution for adding current measurement in your design. It features INA196 current shunt monitor, MCP3201 12-bit ADC, MAX6106 voltage reference as well as two screw terminals. Current Click communicates with target board microcontroller via mikroBUS SPI (SDO, SCK, CS) and AN lines.
Library Description
The library covers all the necessary functions that enables the usage of the Current click board.
It offers reading from output register and calculations that result in relatively accurate current value.
Key functions:
uint16_t current_dataRead()
- Function is used to read data from output register.float current_avgData()
- Function is used to calculate average raw data value.float current_getCurrentData( float rShunt )
- Function is used to calculate current in mA.Examples description
The application is composed of the three sections :
void applicationTask( ) { current = current_getCurrentData( _CURRENT_RSHUNT_10 ); FloatToStr( current, logTxt ); mikrobus_logWrite( " Current: ", _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 click, USB 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.