Gravity: PPG Heart Rate Monitor Sensor (Analog/Digital)
Thumb-contact PPG heart rate sensor outputs both analog and digital signals and connects via the Gravity interface to Arduino or Raspberry Pi. Not intended for medical use; readings are unreliable during movement.
Pinout
- SignalGravity 3-pin signal
Analogue/digital signal output on the documented Gravity 3-pin connector.
Type · Signal - VCCGravity 3-pin power
Supply input on the documented Gravity 3-pin connector.
Type · Power - GNDGravity 3-pin ground
Ground return on the documented Gravity 3-pin connector.
Type · Ground
| Pin | Position | Type | Function |
|---|---|---|---|
| Signal | Gravity 3-pin signal | Signal | Analogue/digital signal output on the documented Gravity 3-pin connector. |
| VCC | Gravity 3-pin power | Power | Supply input on the documented Gravity 3-pin connector. |
| GND | Gravity 3-pin ground | Ground | Ground return on the documented Gravity 3-pin connector. |
Pin details
3 connections- SignalGravity 3-pin signal
Analogue/digital signal output on the documented Gravity 3-pin connector.
Signal - VCCGravity 3-pin power
Supply input on the documented Gravity 3-pin connector.
Power - GNDGravity 3-pin ground
Ground return on the documented Gravity 3-pin connector.
Ground
Start wiring
UART · I2C · Analog · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: VCC, GND, Signal. Schematik maps them to your board in the app.
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