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ESP8266 ESP-12F Button problem?

https://www.esp8266.com/viewtopic.php?f=32&t=14107

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ESP8266 ESP-12F Button problem?

PostPosted: Mon Mar 13, 2017 7:38 am
by VonalOrdu
Image

The circuit is as above.
I touch the WPS pin pin is triggered even insulated cables.
What is the reason?

Re: ESP8266 ESP-12F Button problem?

PostPosted: Tue Mar 14, 2017 9:40 am
by jankop
May by - external pulldown resistor R5 + internal pullup resistor is voltage divider and input is in undefined state. Why pulldown resistors are used?
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