I know that I need to pull pin #34 high on the HC-05 "chip" (AKA PIO11) while powering ON the chip in order to put it into AT mode. Can I leave that pin high while programming, or does it need to go back to ground immediately after it is in AT mode in order to program?

From the datasheet I interpret it as that I can leave it high while programming the chip, then put it back to low when I re-power the module for normal use.
Looking for confirmation. Thank you!

  • please be aware that people do not have time to search for the datasheet ... please add a link to the datasheet to your question .... do not use comments – jsotola Jun 23 at 1:00

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