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Qi Receiver click


Author: MikroElektronika Team

Last Updated: 2018-02-13

Category: Power supply

Downloaded: 163 times

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Qi Receiver click is based on the P9025AC 5W Qi wireless power receiver integrated circuit, with the advanced Foreign Object Detection (FOD) feature, from IDT. The click utilizes the principles of the inductive coupling for the purpose of wireless power transfer.

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Library Blog

QI Receiver click

QI Receiver click

Native view of the QI Receiver click board.

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 Qi Receiver click

Qi Receiver click

Front and back view of the Qi Receiver click board.

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Library Description 

This library contains functions for reading from and writing to, the registers of Qi Receiver click. 

Key functions:

float QIRCV_readV ()  - Reads VRECT value from the click's registers.

float QIRCV_readI ()  - Reads IOUT value from the click's registers.

uint8_t QIRCV_readReg (uint8_t inputAddress) - Generic read function for any register.

void QIRCV_writeReg (uint8_t inputAddress, uint8_t inputData) - Generic write function for any register.

Examples Description

This example demonstrates reading of Qi Receiver registers. It will output the VRECT value and IOUT value. The VRECT can be used to indicate how well the receiver is placed, where higher values mean that the position is better. The IOUT is the output current of the system.

void Qi_Receiver_Task()
    float readValue;
    uint8_t txt [15];

    readValue = QIRCV_readV ();
    FloatToStr (readValue, txt);
    LOG ("rn Current Voltage: ");
    LOG (txt);
    LOG (" V. ");

    readValue = QIRCV_readI ();
    FloatToStr (readValue, txt);
    LOG ("rn Current Current: ");
    LOG (txt);
    LOG (" mA. ");

    Delay_ms (2000);

Other mikroE Libraries used in the example:

  • UART
  • Conversions
  • C_String

Additional notes and information

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.


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