Example schematic for ESP32-WROOM?

Mike1997
Posts: 5
Joined: Fri May 10, 2019 6:57 am

Example schematic for ESP32-WROOM?

Postby Mike1997 » Fri May 10, 2019 7:15 am

Hi,

at the moment I'm using this development board for my first tests and prototypes: http://www.smartarduino.com/view.php?id=95103

The final goal is to deisgn an own board which makes use of the ESP32-WROOM32 module without all the stuff that is not needed (USB etc) and for Bluetooth communication only.

So my question: is there an example schematic available which shows the minimum wiring that is needed in order to operate a ESP32-WROOM module with fixed 3.3V power?

Thanks!


Mike1997
Posts: 5
Joined: Fri May 10, 2019 6:57 am

Re: Example schematic for ESP32-WROOM?

Postby Mike1997 » Fri May 10, 2019 11:32 am

Thanks :-)

Mike1997
Posts: 5
Joined: Fri May 10, 2019 6:57 am

Re: Example schematic for ESP32-WROOM?

Postby Mike1997 » Sat May 11, 2019 2:51 pm

OK, I checked the documents but I afraid there is not what I' looking for. There are a lot of schematics showing what is inside the ESP-WROOM-32 module, but I could not find any information what the minimum required wiring is when using this module!

So for sure I need to connect GND and +3.3V

How about EN? Any other signals that are mandatory and need to be connected?

What do I need to program it from outside - which serial interface is responsible from that?

Thanks!

WiFive
Posts: 2378
Joined: Tue Dec 01, 2015 7:35 am

Re: Example schematic for ESP32-WROOM?

Postby WiFive » Sat May 11, 2019 11:43 pm


rodmcm
Posts: 26
Joined: Sat Sep 02, 2017 3:31 am

Re: Example schematic for ESP32-WROOM?

Postby rodmcm » Thu May 16, 2019 12:21 am

Try this
Attachments
ESP32.JPG
ESP32.JPG (57.2 KiB) Viewed 398 times

Franco
Posts: 48
Joined: Thu Dec 10, 2015 1:11 pm

Re: Example schematic for ESP32-WROOM?

Postby Franco » Sun May 19, 2019 3:22 pm

Hi Mike, page 15 of the ESP32-WROOM-32D module, you can find the peripheral schematic https://www.espressif.com/sites/default ... eet_en.pdf
The version D is recommended by Espressif for new designs. Cheers!

Mike1997
Posts: 5
Joined: Fri May 10, 2019 6:57 am

Re: Example schematic for ESP32-WROOM?

Postby Mike1997 » Mon May 20, 2019 6:45 am

Great - Thanks!

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