ESP32-S2
Espressif recently introduced a new member of the ESP32 family: the ESP32-S2
ESP32-S2 datasheet is available here
Comparison with regular ESP32
(Source: https://esp32.com/viewtopic.php?t=10632)
What do we gain over ESP32?
- Xtensa LX7
- USB FS OTG
- Support for larger external SPI RAM up to 128MB
- Support for larger external SPI Flash up to 1GB
- 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)?
- V2I (802.11p?)
- Lower cost
- External ram access from instruction cache
- Auto-zero ADC
- PSRAM encryption
What do we lose?
- Bluetooth
- ### Dual core ###
- RAM space (320KB vs 520KB)
- ROM space (128KB vs 448KB)
- UART (2 vs 3)
- SDMMC
- MCPWM
- Ethernet
- I2S (1 vs 2, no PDM)
- RMT (4ch vs 8ch)
- PCNT (4 vs 8)
ESP32-SOLO-1
ESP32-SOLO-1 is a new Espressif module that is based on the new ESP32-S2.
Available here: