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By Gold
#82937 Hi, I've just bought a NodeMCU v2 and I'm trying to load the simple code in the pictures but I always receive one of the two errors. What can I do to fix them?
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By QuickFix
#83019
  • Remove NodeMCU from development PC's USB port
  • Install the correct firmware for the used on-board USB -> UART convertor (either a CH340g or a CP2102).
  • Connect USB to development PC
  • Make a note of the assigned COM-port (if not shown, or the dialogbox went away too fast, look for the number in the "Device Manager" under "Ports (COM & LPT)")
  • Start up the Arduino IDE and under "Tools" select:
    • Board: NodeMCU (any version will work)
    • Port: <The COM-port you just made a note of>
  • It should work now