Table 4.
Pin configuration of Spark fun Pulse Oximeter and Heart rate to Arduino MKR.
| Spark fun Pulse Oximeter and Heart rate | Arduino MKR GSM 1400 |
|---|---|
| GND | GND |
| VCC | 3.3V (Arduino BLE Sense) |
| SDA | Pin 11 |
| SCL | Pin 12 |
| MIFO | Pin 5 |
| RST | Pin 4 |
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