It worked for me. Note that: While in general, speeds up to 80MHz on the dedicated SPI pins and 40MHz on GPIO-matrix-routed pins are supported, full-duplex transfers routed over the GPIO matrix only support speeds up to 26MHz. https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/api-referen...

Still, if you tilt the board whilst the solder is still molten the chip may slide. Please pay extra attention and post an update when you reflow some more

Make sure there is no vibration in your oven and that the PCBs are kept perfectly flat whilst moving them if the solder is still molten. Best to keep flat in the oven, let cool, then take out without risk. You've run into over 50 out of how many boards with this problem?

What is the value you pass to the fuction when you call it?

Also, GPIO35 is an input-only pin so you don't need to give it any internal pull up or down configuration:

GPIO pins 34-39 are input-only. These pins do not feature an output driver or internal pull-
up/pull-down circuitry

Thank you, I will test this out and provide an update

Is it possible to remap the SPI pins (/use any pins) on the ESP32-S3 for SPI without a performance hit? I only need to connect MOSI, MISO, SS (Slave Select / CE / CS), and CLK. So far I have been using GPIO11 for MOSI, GPIO13 for MISO, GPIO10 for SS, and GPIO12 for SCK, it works but I need to use di...

Also need to put ESP32-S3 into flash mode by disabling the chip (EN low) and making sure that when you enable the chip again (EN high) that BOOT is low (IO0 low). You can probably do this and make your UART connections with some test pads on a PCB and a spring-loaded connector for flashing.

For your camera capabilities look at https://github.com/espressif/esp32-camera . There is also a popular ESP32-CAM board you could try out available cheaply from AliExpress and there are some YouTube videos online going into it. If you want to straight away use the S3 rather than have to think about...

What is the purpose of SPICLK_P and SPICLK_N? Even in the internal schematic of the ESP32-S3-WROOM-2, though SPICLK_P (GPIO47) and SPICLK_N (GPIO48) are powered by VDD_SPI (so have the same voltage as the flash and PSRAM under ESP32-S3-WROOM-2 the metal shield) I do not see those SPICLK_P and SPICLK...