In only one sketch I cannot make the serial monitor to show normal text. only squares are displayed. Baud rates are set correctly, tried different baud rates, same NodeMCU used on same COM port, other sketches do show correctly, tried different text instead of just the dot, tried Serial.println() …

Serial Monitor displays only blocks (SOLVED)

J-M-L February 2, 2024, 2:00pm 4

GPIO1 (the one you called PBH) my be TXD0, the Serial Tx pin

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