esp32s2 vs esp32 Comparison Table
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spec esp32 esp32s2 CPU single core or dual core LX6 single core LX7 SRAM 520KB 320KB ROM 448KB 128KB ext spi-ram support 8MB 128 MB total(not confirm) ext spi-flash support 16MB 1 GB(not confirm) GPIOs 34 43 Cap Touch IO 10 14 PKG QFN48 66 or 55 or 7*7 QFN56 7*7 WiFi 802.11 b/g/n 802.11 b/g/n and TOF(Time-of-Flight) BT v4.2 BR/EDR/BLE None LCD None 8/16/24bit parallel RGB/8080/6800 i2s 2 1 DVP 8 or 16-bit in i2s0 or i2s1 8 or 16-bit in i2s0 USB None Full speed USB OTG SDIO Yes None SPI 4 4 ETH Yes None