Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

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By ingenium
michaeltandy wrote:See here for a list of the different pins' behaviours during reset and startup.

TLDR: Only GPIO4 and GPIO5 go through the reset procedure without being set high or pulled up.

This doesn't seem to be the case on mine. GPIO5 gets pulled high on boot. I have it connected to my garage door opener, and it triggers it every time it boots.