Pulse Sensor Features and Specifications
Biometric Pulse Rate or Heart Rate detecting sensor
Plug and Play type sensor
Operating Voltage: +5V or +3.3V
Current Consumption: 4mA
Inbuilt Amplification and Noise cancellation ci
Pin Configuration
The PT100 sensor is just like a variable resistor, whose resistance varies with respect to the environment temperature. There are many types of PT100 sensors, the one we use here is a two wire one.
A3144 hall effect sensor module is used to detect the presence of a magnetic field. The output of the module goes high in the presence of a magnetic field and it becomes low in the absence of a magnetic field.