Skip to content

Instantly share code, notes, and snippets.

View garizlo's full-sized avatar

garizlo

  • Cyprus
View GitHub Profile
@garizlo
garizlo / dontdothis.ino
Created December 15, 2023 07:41 — forked from turbo/dontdothis.ino
Use ESP8266 ESP-12F/E D1 Mini GPIO Pin 10
/*
* In ESP 12 modules, spec. D1 Mini mounted, GPIO9 and GPIO10 can sort of be freed up.
* GPIO9 is connected to flash HOLD
* GPIO10 is connected to flash WP
*
* In DIO mode, these pins should be free, but remain connected to the flash chip.
* Using GPIO9 will crash the module sooner or later, GPIO10 is relatively safe, but
* don't fuzz it. Might be good enough for SPI CS or similar, no data rates pl0x.
*/