Programming a PCB using Arduino Uno

Hi everyone! I need to program a PCB that has a total of 3 sensors, to obtain signals from them. I'm using MAX30102EFD+ (oximeter), SPH0645LM4H-B (microphone) and ENS210-LQFM (temperature sensor). I would like if someone showed me code examples to make it easier to process all the information regarding these sensors.
Thank you for your attention!

Google is your friend.

https://create.arduino.cc/projecthub/SurtrTech/measure-heart-rate-and-spo2-with-max30102-c2b4d8

Look for example code exercising one sensor. Use that and learn.
Do the same for the other sensors.
The IDE environment contains quit a lot of various examples.

Thank you! Before asking here I've already seen those websites but the code doesn´t work on my PCB, maybe there is something wrong with it :confused:
For example, in the microphone one, I don't have the I2S example.

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