For a quick start, you may also want to just paste this code http://forum.espruino.com/conversations/372681/?offset=25#16390275
to the left side of the WebIDE. (leave clock before. If you are in launcher menu the graphs don't get disturbed by watch/widget updates)
After a while you should see the detected peaks marked.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
For a quick start, you may also want to just paste this code
http://forum.espruino.com/conversations/372681/?offset=25#16390275
to the left side of the WebIDE. (leave clock before. If you are in launcher menu the graphs don't get disturbed by watch/widget updates)
After a while you should see the detected peaks marked.