Max30101 with nRF51822

[Muhammad Nabeel]

Hello,

I am trying to configure a Heart rate sensor MAX30101 with nRF51822. I have initialized the sensor correctly as I can see the LEDs turn on. But when I read data from the data register I get zero. The sensor uses I2C and to read data from FIFO I used the pseudocode given in link https://datasheets.maximintegrated.com/en/ds/MAX30101.pdf . And to configure the sensor I followed the following link. https://maximsupport.microsoftcrmportals.com/en-us/knowledgebase/article/000102527 .

Please help me get the data.

Regards

M Nabeel

[Jørgen Holmefjord]

Hi,

Have you checked the TWI bus lines with a logic analyzer, to see if the expected commands are output to/from the sensor? Can you post the code you used to configure TWI and what registers you write/read?

Best regards,
Jørgen