ESP8266 vs ESP32 vs ESP32-S2 vs ESP32-C3

Nombre corto	ESP32-C3-WROOM-02U	ESP32-C3	ESP32-S2	ESP32	ESP8285	ESP8266
Descripción		ESP32-C3 is pin-compatible with ESP8266. It has a single core RISC-V 32-bit CPU @160 MHz and includes 400 kB of SRAM and 384 kB of flash built-in.			The ESP8285 is similar to the ESP8266, but has built-in 1 MiB of flash.
Sitio web	espressif.com/...	espressif.com/...	espressif.com/...	espressif.com/...	espressif.com/...	espressif.com/...
Fecha de lanzamiento	2021	2020	2019	2016	2016	2014
Product details
CPU	32-bit RISC-V single-core processor	RISC-V 32-bit Single-Core @ 160 MHz	Tensilica Xtensa LX7 32 bit Single-Core @ 240Mhz	Tensilica Xtensa LX6 32 bit Dual-Core @ 160 / 240Mhz	Tensilica LX106 32 bit @ 80 MHz (up to 160 MHz)	Tensilica LX106 32 bit @ 80 MHz (up to 160 MHz)
Coprocessor			ULP (RISC-V)	ULP
RAM		400 KB	320 KB	520 KB	160 KB	50 KB less than
ROM (Flash)		384 KB	128 KB	448 KB	1,024 KB	0 use external SPI flash
UART	2	2	2	3	2	2
SPI	Sí 3	Sí 3	Sí 4 (OSPI)	Sí 4	Sí 2	Sí 2
Wi-Fi	Sí 802.11b/g/n	Sí 802.11b/g/n	Sí 802.11b/g/n	Sí 802.11b/g/n	Sí 802.11b/g/n (max 65Mbps)	Sí 802.11b/g/n (max 65Mbps)
Bluetooth®	Sí 5.0 BLE	Sí 5.0 + BLE	No	Sí 4.2 BR/EDR + BLE	No	No
USB Host		No	Sí	No	No	No
Ethernet (LAN, RJ45)		No	No	Sí 10/100Mbps	No	No
RTC Memory	8 KB	8 KB	16 KB	16 KB
External SRAM			128 MB up to	8 MB up to	16 MB up to
External Flash			1 GB up to	16 MB up to		16 MB up to
ESP-MESH		Sí	Sí	Sí	Sí	Sí
CAN				Sí v2.0		No
GPIO	15 (up to)	22 (up to)	43	34	17 (up to)	17 (up to)
Sensor de efecto Hall	No	No	No	Sí	No	No
Capteur de température	Sí	Sí	Sí	Sí	No	No
Touch sensors	No		14	10	No	No
I²C	Sí up to 1	Sí up to 1	Sí up to 2	Sí up to 2	Sí up to 1	Sí up to 1
I2S	1	1	1	2	2	2
ADC	Sí 2 × 12-bit ADC, up to 6 channels	Sí 2 × 12-bit SAR ADCs, up to 6 channels	Sí 12 bit SAR ADC up to 20 channels	Sí 12 bit SAR ADC up to 18 channels	Sí 10 bit	Sí 10 bit
DAC	No		Sí 8 bit up to 2 channels	Sí 8 bit up to 2 channels	No	No
PWM		Sí up to 6	Sí 8	Sí up to 8	No	Sí 4
SDMMC			No	Sí	No	No
RMT (remote control)			Sí	Sí	No	No
LCD Interface		No	Sí	No	No	No
Camera Interface	No	No	Sí	No	No	No
Secure flash		4096-bit OTP	4096-bit OTP secure boot	1024-bit OTP secure boot
Cryptography support		AES-128/256, RSA Accelerator, SHA Accelerator, Random Number Generator (RNG), HMAC	AES-128/192/256, SHA-2, RSA, RNG, HMAC, Digital Signature	AES, SHA-2, RSA, ECC, RNG
Deep sleep consumption	5 µA		5 µA	10 µA, Yes	20 µA	20 µA, Yes
Dimensiones
Altura	18 mm	5 mm	7 mm	6 mm	5 mm	5 mm
Ancho	20 mm	5 mm	7 mm	6 mm	5 mm	5 mm

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