ESP32-S2 is a highly integrated, low-power, 2.4 GHz Wi-Fi Microcontroller SoC supporting Wi-Fi HT40 and 43 GPIOs. Based on Xtensa® single-core 32-bit LX7 processor, it can be clocked at up to 240 MHz.
Q: Is this "chip7"?
This chip is intended to expand the product line and coexist with esp32 not replace it.
What do we gain over ESP32?
USB FS OTG
Support for larger external flash/ram
More GPIOs (39 gpio + 1 gpi, 22 rtcio)
14/15 ch Waterproof touch sense? & Proximity sensing
Improved SPI (OSPI)
Improved ULP (RISC-V)
WiFi Indoor Positioning (802.11mc)?
External ram access from instruction cache
Integrated antenna switch
What do we lose?
RAM? (320KB vs 520KB, or are we not counting IRAM/cache now?)
ROM (128KB vs 448KB)
UART (2 vs 3)
I2S (1 vs 2, no PDM)
RMT (4ch vs 8ch)
PCNT (4 vs 8)
Sometimes internally designated as ESP32C?