Pulse Sensor Amped

Optical heart-rate sensor with on-board amplification and noise cancellation; works with 3 V or 5 V Arduino via analogue input. Outputs a signal proportional to blood-volume pulse for real-time BPM calculation.

Logical pinout · physical placement not verified

RED wire+V
Positive supply lead. Pulse Sensor Getting Started Guide states RED wire = +3V to +5V and connects to +V.
Type · PowerVoltage · +3V to +5V
BLACK wireGND
Ground lead. Pulse Sensor Getting Started Guide states BLACK wire = GND and connects to Ground.
Type · GroundVoltage · 0V
PURPLE wireSignal
Analogue pulse output lead. Pulse Sensor Getting Started Guide states PURPLE wire = Signal and connects to Arduino analogue pin 0; datasheet states output voltage range is 0.3V to Vdd.
Type · SignalVoltage · 0.3V to Vdd output range

Pin	Type	Function	Voltage
RED wire+V	Power	Positive supply lead. Pulse Sensor Getting Started Guide states RED wire = +3V to +5V and connects to +V.	+3V to +5V
BLACK wireGND	Ground	Ground lead. Pulse Sensor Getting Started Guide states BLACK wire = GND and connects to Ground.	0V
PURPLE wireSignal	Signal	Analogue pulse output lead. Pulse Sensor Getting Started Guide states PURPLE wire = Signal and connects to Arduino analogue pin 0; datasheet states output voltage range is 0.3V to Vdd.	0.3V to Vdd output range

Logical pinout · physical placement not verified

Pin details

3 connections

RED wire+V
Positive supply lead. Pulse Sensor Getting Started Guide states RED wire = +3V to +5V and connects to +V.
PowerVoltage · +3V to +5V
BLACK wireGND
Ground lead. Pulse Sensor Getting Started Guide states BLACK wire = GND and connects to Ground.
GroundVoltage · 0V
PURPLE wireSignal
Analogue pulse output lead. Pulse Sensor Getting Started Guide states PURPLE wire = Signal and connects to Arduino analogue pin 0; datasheet states output voltage range is 0.3V to Vdd.
SignalVoltage · 0.3V to Vdd output range

Start wiring

UART · I2C · Analog · 3.3 – 5 V · Breakout

Verify supply voltage and logic levels before powering up.

Module pins: RED wire / +V, BLACK wire / GND, PURPLE wire / Signal. Schematik maps them to your board in the app.

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Pinout