WORKING IN PROGRESS !
The example provided is set up on NRF52840 board.
You can find an example running on an ESP32 on VSPI here.
You can also find here the github of our collaborator Prashant Sinha who shared with us informations about the Max86140/Max86141, the NRF52 and ESP32.
Arduino codes and docs for using Max86140/Max86141 sensors
The Select Slave Pin SS_Pin is A5
