This signal is from an instrumentation amplifier,
read from Arduino MEGA2560 ADC,
loop delay 10ms (rate 10kHz)

I need to **count high spikes only**, (in below figure, 6 high spikes can be observed)

**Edited** -
**its and ECG signal and signal was sampled at rate of 10kHz**

[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/UFl4l.png