GPIO0 (D3) pin on Wemos D1 mini toggles upon Micropython start

All ESP8266 boards running MicroPython.
Official boards are the Adafruit Huzzah and Feather boards.
Target audience: MicroPython users with an ESP8266 board.
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eltomek
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Joined: Sat Feb 02, 2019 8:32 am

GPIO0 (D3) pin on Wemos D1 mini toggles upon Micropython start

Post by eltomek » Sat Mar 02, 2019 8:08 pm

What is special about GPIO0 (D3) that this pin toogles ON->OFF upon bootup of Micropython? I checked the rest of the pins and they look to behave correctly i.e no unexpected toggling.
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