My Maker world changed last week when I started my first inline debugging tool for an Arduino sketch. Free of charge, nota bene. You do not know what I am talking about? Then you must watch at least the beginning of the video. If you know what I am talking about, I am sure; you also want to have it.
PlatformIO announced it will go open source because of an investment of Western Digital.

Links:
PlatformIO: https://platformio.org/
Zadig https://zadig.akeo.ie/
JTAG debugger: http://s.click.aliexpress.com/e/nheTjRa
or http://bit.ly/2KxvblY
Olimex JTAG: https://www.olimex.com/Products/ARM/J...

Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot

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