This Wireling lets you measure your heartbeat via the MAX30101 pulse sensor. The sensor package features internal LEDs, photodetectors, optical elements, and low-noise electronics.

 

MAX30101 Specs

• Heart-Rate Monitor and Pulse Oximeter Sensor in LED Reflective Solution
• Integrated cover glass for optimal, robust performance
• Programmable sample rate and LED Current for power savings
• Fast Data output capability: high sample rates
• Robust motion artifact resilience: high SNR

TinyDuino Power Requirements

• Voltage: 3.0V - 5.5V 
• Power: < mW (Low-Power Mode)
• Current: 0.7uA, typ (Ultra-Low Shutdown Current)

Pins Used

• A5/SCL - I²C Serial Clock line
• A4/SDA - I²C Serial Data line 

Dimensions

• 10mm x 10mm (.39 inches x .39 inches)
• Max Height (from the lower bottom of Wireling to upper top of pulse sensor) 5.11mm (0.20 inches)
• Weight: 1 gram (.04 ounces)

 

You can also use this Wireling without the TinyDuino – modifying the connecting cable by removing the opposite connector and stripping/tinning the wires, you can solder the connector cable to any other microcontroller board of your choice!