Wemos digitalWrite not Working

Projects Programming
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pin labeled D0 is D0 in code. 'Arduino" doesn't have D0, only 0

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vinci444:
So i've to use 0 and not D0? And the pin 0 equals to the Pin called D0 on the WeMos board?

No, D0 on Wemos is D0. Uno doesn't have D0.

btw: Wemos"s pin labeled D0 is connected to pin 16 of onboard esp8266, so the value of the D0 macro is 16