This pulse oximetry shield from ProtoCentral uses the AFE4490 IC to enable your Arduino to measure heart rate as well as SpO2 values.
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The polarity in D1 D2 D3 and D5 in sch is incorrect, but in pcb is correct #1
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danieljpb closed 7 years ago
The polarity in D1 D2 D3 and D5 in sch is incorrect, but in brd is correct