ESP32 Wroom En & Io0 Pins

techster.amman
Posts: 1
Joined: Wed Aug 11, 2021 2:52 pm

ESP32 Wroom En & Io0 Pins

Postby techster.amman » Wed Aug 11, 2021 2:56 pm

Hi there,

I am currently designing a breakout board for the ESP32 Wroom. I need help figuring out how to wire the buttons for pins EN & IO0. I've seen a lot of conflicting schematics on the internet so I would appreciate it if someone could guide me in the right direction.

Thanks!

ESP_Sprite
Posts: 9592
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32 Wroom En & Io0 Pins

Postby ESP_Sprite » Thu Aug 12, 2021 1:07 am

The barebones basics are that you want a RC network on EN, with a button able to pull that node down to ground. For IO0, a simple button pulling it down to ground is enough in most cases, but some people add a pullup to 3.3V as well.

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