Grumpy_Mike:
What is wrong with the code on that web site?
I try the exact code. But LED 13 doesn't blink when i touch it. The processing that shows the heartbeats work, but it only changes every time i touch it, where actually it is said that when we touch it it will continuously detect our heart rate without having to keep removing our fingers.
So I am planing on creating a simple code without using any processing code. And just print the hear rate in the serial monitor. But no luck it doesn't work.