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AFE4404 Sensor with Arduino

Mitchell Donley
Prodigy 60 points
Other Parts Discussed in Thread: AFE4404

Hi,

I am trying to use the AFE4404 Sensor to read a person's blood oxygen, but I would like to do this with just an arduino and the sensor. Is this possible? If so, how would I go about doing this? If not, can someone explain how I would go about hooking up the EVM with an arduino?

Thank you,

Mitch

  • 0
    TI__Genius 12555 points
    Hi Mitchell,

    Yes, you can use AFE4404 ( along with external LEDs and Photo diode) with Arduino to read person's blood oxygen levels.
    To interface the AFE4404 EVM with Arduino please follow the steps listed below:
    1) Remove the connection for digital signal (I2C_CLK, I2C_DATA, ADC_RDY, CLK, RESETZ) between MSP430 and AFE4404.
    i.e. Remove R7, R8, R18, R15, R16
    2) Blue wire digital signal (I2C_CLK, I2C_DATA, ADC_RDY, CLK, RESETZ) from Arduino to AFE4404.
    3) Share the GND signal between Arduino and AFE4404.
    4) Give 8MHz clock to CLK pin of AFE4404. Also pull RESETZ signal to high.
    5) All the power supplies to AFE4404 are given from EVM, so EVM should be connected to Laptop/Desktop.

    Hope this helps..

    Regards,
    Prabin
  • 0
    Prodigy 90 points

    Hi Mitchell,

    did you find a way to set up the AFE4404 with just an Arduino?

    Simon