ESP8266 Community Forum

here is a good documentation of the behaviour of the gpios, draw your own conclusions.
There are some relay boards that use an additional µC to owrk around the problem-
There are some hw-mods to work around,
I don't know of any effective sw "trick".

schufti wrote:here is a good documentation of the behaviour of the gpios, draw your own conclusions.
There are some relay boards that use an additional µC to owrk around the problem-
There are some hw-mods to work around,
I don't know of any effective sw "trick".

I added a 470µF capacitor between GPIO0 and VCC and it did the trick . Should I add 1K resistor to limit the current or the capacitor alone is enough
Currently working circuit : ESP 3.3VCC -> +ve lead of the capacitor -> -ve lead of capacitor -> ESP GPIO0
With resistance : ESP 3.3VCC -> 1KOhm -> +ve lead of the capacitor -> -ve lead of capacitor -> ESP GPIO0

which would be better and more stable ?