ESP8266 vs ESP32 vs ESP32-S2 vs ESP32-C3

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

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