I’ve been searching Google but not finding quite the answer.

I’m trying to switch a 2n2222 transistor just to blink an LED and confirm it’s all working before using it for anything grander. The exact breadboard circuit that works with an Arduino UNO won’t work with my NodeMCU esp8266.

Literally just moving my one jumper wire to the other microcontroller’s pin stops it from working.

Did I overlook something in the NodeMCU data sheet? Does it not output enough juice or something? It appears other people have it working but mine just doesn’t.

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