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ESP32-WROVER Footprint,
Posted: Sun May 07, 2017 10:40 pm
by awl007
Hi,
I am hacking together a quick PCB board that supports both the ESP-WROOM-32 and ESP-WROVER modules. Does anyone know if the ESP-WROVER module has a ground pad in the same location as the ESP-WROOM-32? Also from ESP32.NET it seems the ESP-WROVER is using the 1.8V IS25WP032 FLASH (ESP-SRAM); which means GPIO6-11 and GPIO16,17 are at 1.8V ? Is there a way to get access to VDD_SDIO?
Best
Al
Re: ESP32-WROVER Footprint,
Posted: Mon May 08, 2017 2:50 am
by WiFive
I don't think vdd-sdio is broken out but gpio16-17 are used by the ram anyway.
Re: ESP32-WROVER Footprint,
Posted: Mon May 08, 2017 4:06 pm
by rudi ;-)
awl007 wrote:
Does anyone know if the ESP-WROVER module has a ground pad in the same location as the ESP-WROOM-32?
hi
perhabs this "eye catch just in time from now on a Wrover and Wroom" helps
- IMG_6460_s.jpg (308.49 KiB) Viewed 11292 times
..
- IMG_6464_s.jpg (203.18 KiB) Viewed 11289 times
awl007 wrote:
Also from ESP32.NET it seems the ESP-WROVER is using the 1.8V IS25WP032 FLASH (ESP-SRAM); which means GPIO6-11 and GPIO16,17 are at 1.8V ? Is there a way to get access to VDD_SDIO?
GPIO16 -> NC
GPIO17 -> NC
best wishes
rudi
edit: btw, if you see the
shematic of Wrover Kit V2, there is footprint
for Wrover and Wroom, but there is Gpio16 and GPIO17 on the footprint. but i think this is only cosmetic
and not functionally cause PSRAM version...
- WroverKit2.png (53.63 KiB) Viewed 11292 times
Re: ESP32-WROVER Footprint,
Posted: Tue May 09, 2017 12:30 am
by awl007
Thanks Rudi!
Re: ESP32-WROVER Footprint,
Posted: Fri May 12, 2017 5:20 pm
by santanapablo1975
Hi All,
Somebody hier would have the sch for the new 2 column WROVER module?
I would like to see the circuit dor the external SPI FLASH and the external PSARAM.
Regards
Juan