ESP8266 Community Forum

- Wed Jan 06, 2021 12:45 pm #90102 Thank you for the replies:)

1) @RichardS Ok, so what is the real difference between setting binary 1 or binary 0 through 10k resistors or not, on RST and EN by voltage from Vcc or from microcontroller's own GPIOs?

2) The diode is a good idea, thank you!:)

[RichardS]

- Thu Jan 07, 2021 5:21 pm #90114 Simply difference is control, one you can control by software one you can not.

If the inputs needed current limiting then resistors would be needed, but here they do not.

RichardS

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- Fri Jan 08, 2021 5:37 am #90118 in general: use resistors on pins that can be configured as output ... you never know what chip does when going berserk.

- Fri Jan 08, 2021 5:54 am #90120 If only during booting, when some pins are used as signal output. Only during the boot process they're set GPIO in low state.