Arduino Library for the HX3603 Heartrate sensor for the nRF52 Bluetooth Micro
This sensor is used in the "second-generation" Da Fit watches, based on the nRF52840. I have a Kospet ROCK to test on.
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It includes a closed source .a file, to get the Arduino IDE recognize it you need to edit the Platform.txt from the nRF52 library.
Add: compiler.libraries.ldflags= somewhere as a new line.
also add: {compiler.libraries.ldflags} somewhere ad the end of line combine.pattern
For more infos watch this video for another Heartrate Sensor:
Demo video:
