ESP32 hardware versions

[max-arnold]

Let's collect some data on PSRAM availability in different hardware versions. Install f/w version 2.22 or later, go-to Menu->Settings->About, scroll to the last page and post its photo here. A PCB photo under the battery would be helpful as well. Please avoid posting the data that was already reported by someone else.

[reppr]

Let's collect some data on PSRAM availability in different hardware versions.

This is a very early version:
esptool.py v4.8.1
Serial port /dev/ttyACM0
Connecting...
Chip is ESP32-S3 (QFN56) (revision v0.2)
Features: WiFi, BLE, Embedded PSRAM 2MB (AP_3v3)
Crystal is 40MHz
...
Detected flash size: 8MB

[max-arnold]

Thanks! Could you please try the latest testing firmware build? https://github.com/esp32-si4732/ats-mini/actions/runs/15204365584

It enables PSRAM and has the new About screen that is not yet released

[reppr]

Cannot spot the change in the About screen, but firmware seems to run ok

[GrzegorzZajac000]

Software version on both: https://github.com/esp32-si4732/ats-mini/actions/runs/15204365584

ATS Mini from AliExpress

[GrzegorzZajac000]

ATS Mini from Banggood

[radiola2]

Edit: Removed my photos as GrzegorzZajac000 posted the same version that I have, also from Banggood.

[max-arnold]

Thanks! Now someone who has N8R2 printed on the metal chip cover please try this build (I switched it to a different type of PSRAM) and post the About screen.

https://github.com/esp32-si4732/ats-mini/actions/runs/15208976938

[GrzegorzZajac000]

Thanks! Now someone who has N8R2 printed on the metal chip cover please try this build (I switched it to a different type of PSRAM) and post the About screen.

https://github.com/esp32-si4732/ats-mini/actions/runs/15208976938

[0xAF]

Esptool report:

Detecting chip type... ESP32-S3
Chip is ESP32-S3 (QFN56) (revision v0.2)
Features: WiFi, BLE, Embedded PSRAM 8MB (AP_3v3)
Crystal is 40MHz
MAC: 98:88:e0:04:45:2c
Uploading stub...
Running stub...
Stub running...
Warning: ESP32-S3 has no Chip ID. Reading MAC instead.
MAC: 98:88:e0:04:45:2c

[0xAF]

Another one just came from Ali (link) today:

Detecting chip type... ESP32-S3
Chip is ESP32-S3 (QFN56) (revision v0.2)
Features: WiFi, BLE, Embedded PSRAM 8MB (AP_3v3)
Crystal is 40MHz
MAC: 30:ed:a0:a6:bb:14
Uploading stub...
Running stub...
Stub running...
Warning: ESP32-S3 has no Chip ID. Reading MAC instead.
MAC: 30:ed:a0:a6:bb:14

[max-arnold]

Hey!

Could someone with an N8R2 chip please test the following two builds and show the About screen with system information?

ats-mini-test-build-v2.27-psram-opi-1.zip
ats-mini-test-build-v2.27-psram-qspi-1.zip

Thanks!

[Ed-Mouse]

opi-1

qspi-1