Pulse Sensor Amped robotics Comes with a range of

Comes with a range of horns as seen above

only about 1

They have a color picker

You can even chain up 62 breakouts to control up to 992 PWM outputs (which we would really like to see since it would be glorious)

We also have a version without an amplifier

Pulse Sensor Amped robotics Comes with a range ofPulse Sensor Amped is a greatly improved version of the original Pulse Sensor, a plug and play heart rate sensor for Arduino and Arduino compatibles. It can be used by students, artists, athletes, makers, and game & mobile developers who want to easily incorporate live heart rate data into their projects. Pulse Sensor Amped adds amplification and noise cancellation circuitry to the hardware. It's noticeably faster and easier to get reliable pulse