Y'all make any progress figuring out RISCV ULP i2c?

Thank you, that's very helpful! Would be good to update the product selector to be clear about this since right now it reads on the ESP32-PICO-D4 page "The ESP32-PICO-04 (sic) is a System-in-Package (SiP) device that is based on ESP32 with ECO V3 wafer" https://imgur.com/a/E28o1df I absolutely need ...

I ordered 1000 ESP32-PICO-D4 chips and turns out they are the older ECO V1 version (not the latest ECO V3). According to the Espressif Product Selector ( https://products.espressif.com/#/product-selector?names=ESP32-PICO-D4 ) the latest version of these chips should be based on the ECO V3 silicon. I...

Are there any guidelines as to the maximum PPM tolerance for the 32.768kHz oscillator that will still work, particularly for using BLE + light sleep? I'm considering the various options from the SiTime lineup https://www.sitime.com/products/khz-oscillators

So is it a bug in the hardware design that this 10M resistor isn't included on the PCB? The onboard crystal is useless without it right? The hardware design guidelines ( https://www.espressif.com/sites/default/files/documentation/esp32_hardware_design_guidelines_en.pdf ) seem to confirm it's necessa...