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What's the difference between ESP32-S3-WROOM-1 and -2?
Posted: Mon Jan 03, 2022 8:57 am
by kartg0058033
Hello folks,
I have backordered a dev board ESP32-S3-DevKitC-1-N16R8V, and I found that it embeds an ESP32-S3-WROOM-2-N16R8V chip. However, I could not find the datasheet throughout the official website.
What's the difference between ESP32-S3-WROOM-2 and -1? Are they identical? Thank you!
Re: What's the difference between ESP32-S3-WROOM-1 and -2?
Posted: Mon Jan 03, 2022 10:32 am
by ESP_igrr
Hi kartg0058033,
the datasheet for ESP32-S3-WROOM-2 is currently in review, it should be published soon. The main difference of the -2 version is that it uses octal SPI interface to connect Flash/PSRAM.
Re: What's the difference between ESP32-S3-WROOM-1 and -2?
Posted: Mon Jan 03, 2022 11:27 am
by kartg0058033
Hi ESP_igrr,
ESP_igrr wrote: ↑Mon Jan 03, 2022 10:32 am
The main difference of the -2 version is that it uses octal SPI interface to connect Flash/PSRAM.
Thanks for your immediate support. I have another question.
Are ESP32-S3-DevKitC-1-N16R8V (with ESP32-S3-WROOM-2) have the same pinout like other ESP32-S3-DevKitC-1 (using ESP32-S3-WROOM-1/1U)? I am afraid that additional SPI interface will affect available GPIOs. Thank you.
Re: What's the difference between ESP32-S3-WROOM-1 and -2?
Posted: Thu Jan 06, 2022 1:59 am
by ESP_Peter
Hi kartg0058033，
The GPIO35 ~ 37 is used by internal Octal SPI PSRAM/Flash, when you use ESP32-S3-DevKitC-1-NxR8V (with ESP32-S3-WROOM-2) and ESP32-S3-DevKitC-1-NxR8 (with ESP32-S3-WROOM-1-NxR8).
Re: What's the difference between ESP32-S3-WROOM-1 and -2?
Posted: Fri Mar 18, 2022 12:27 pm
by meltdown03
ESP_Peter wrote: ↑Thu Jan 06, 2022 1:59 am
Hi kartg0058033，
The GPIO35 ~ 37 is used by internal Octal SPI PSRAM/Flash, when you use ESP32-S3-DevKitC-1-NxR8V (with ESP32-S3-WROOM-2) and ESP32-S3-DevKitC-1-NxR8 (with ESP32-S3-WROOM-1-NxR8).
Does the WROOM-2 Devkit being sold have the pins broken out like the WROOM-1 version? If not, is it smaller or in a different configuration?