Yes, exactly, I don't have an oscilloscope or something like that. Unfortunately.
' I don't have an oscilloscope'
See post #3 and #4 for images of this handy little device.
http://forum.espruino.com/conversations/332295/
The FX2 Logic Analyzer is inexpensive and helped solved many timing issues. . . .
@Robin started
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.
Yes, exactly, I don't have an oscilloscope or something like that. Unfortunately.