ESPRESSIF

 

https://www.espressif.com/en/products/devkits

Development Boards | Espressif Systems

 

https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/api-guides/index.html

API Guides - ESP32-S2 - — ESP-IDF Programming Guide latest documentation

 

https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/index.html

ESP-IDF Programming Guide - ESP32-S2 - — ESP-IDF Programming Guide latest documentation

 

ESP32-S2 ESP-IDF Programming Guide =>

https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/esp-idf-en-v5.1-dev-2907-gbcc307cf7b-esp32s2.pdf

 

 

 

https://www.sphinx-doc.org/en/master/      문서 작성도구

Welcome — Sphinx documentation

 

 

https://www.espressif.com/en/support/documents/technical-documents 

Technical Documents | Espressif Systems

 

 

https://gist.github.com/sekcompsci/2bf39e715d5fe47579fa184fa819f421

Comparison table for ESP8266/ESP32/ESP32-S2/ESP32-S3/ESP32-C3/ESP32-C6

 

Comparison table for ESP8266/ESP32/ESP32-S2/ESP32-S3/ESP32-C3/ESP32-C6

A minimal table to compare the Espressif's MCU families.

ESP8266ESP32ESP32-S2ESP32-S3ESP32-C3ESP32-C6

Announcement Date	2014, August	2016, September	2019, September	2020, December	2020, November	2021, April
Main processor	Tensilica L106 32-bit (up to 160MHz)	Tensilica Xtensa 32-bit LX6 (up to 240MHz) (optionally dual core)	Tensilica Xtensa 32-bit LX7 (up to 240MHz)	Tensilica Xtensa 32-bit LX7 dual core (up to 240MHz)	RISC-V 32-bit (up to 160MHz)	RISC-V 32-bit (up to 160MHz)
SRAM	160KB	520KB	320KB	512KB	400KB	400KB
ROM	0	448KB	128KB	384KB	384KB	384KB
JTAG	X	✓	✓	?	✓	✓
Cache	32 KB instruction	64KB	8/16KB (configurable)	?	16KB	?
WiFi	Wi-Fi 4 (only up to 72.2Mbps)	Wi-Fi 4	Wi-Fi 4	Wi-Fi 4	Wi-Fi 4	Wi-Fi 6
Bluetooth	X	BLE 4.2 (upgrade to 5.0, with limitations)	X	BLE 5.0	BLE 5.0	BLE 5.0
Ethernet	X	✓	X	?	X	?
RTC memory	768B	16KB	16KB	16KB	8KB	?
PMU	✓	✓	✓	?	✓	?
ULP coprocessor	X	✓	ULP-RISC-V	?	X	?
Cryptographic Accelerator	X	SHA, RSA, AES, RNG	SHA, RSA, AES, RNG, HMAC, Digital Signature	SHA, RSA, AES, RNG, HMAC, Digital Signature	SHA, RSA, AES, RNG, HMAC, Digital Signature	SHA, RSA, AES, RNG, HMAC, Digital Signature
Secure boot	X	✓	✓	✓	✓	✓
Flash encryption	X	✓	XTS-AES-128/256	✓	XTS-AES-128	XTS-AES-128
SPI	2	4	4	?	3	?
I2C	1	2	2	?	1	?
I2S	1	2	1	?	1	?
UART	2 (one TX only)	3	2	?	2	?
SDIO Host	0	1	0	2	0	0
SDIO Slave	0	1	0	0	0	0
GPIO	17	34	43	44	22	22
LED PWM	5	16	8	?	6	?
MCPWM	0	6	0	2	0	0
Pulse counter	0	8	4	?	0	X
GDMA*	0	0	0	?	6	?
USB	X	X	USB OTG 1.1	?	Serial/JTAG	?
TWAI**	0	1	1	?	1	?
ADC	1x 10-bit SAR	2x 12-bit SAR, up to 18 channels	2x 13-bit SAR, up to 20 channels	?	2x 12-bit SAR, up to 6 channels	?
DAC	X	2x 8-bit	2x 8-bit	?	X	X
RMT	1x transmission + 1x reception	8x transmission/reception	4x transmission/reception	?	2x transmission + 2x reception	?
Timer	2x 23-bit***	4x 64-bit	4x 64-bit	?	2x 54-bit + 1x 52-bit	?
Temperature Sensor	✓	✓	✓	?	✓	?
Hall Sensor	X	✓	X	?	X	?
Touch Sensor	0	10	14	?	X	?

* All the MCUs have some sort of DMA. However, if this field is not checked, it means that the user hasn't the direct control over DMA. With General DMA term, Espressif intends a specific DMA peripheral in full control of user. He will be responsible to manage such peripheral.

** In some old datasheet and documentation, it was referred as CAN bus.

*** A timer is dedicated to Wi-Fi, so you cannot freely use it.

For more details about specific models and variants, look at Espressif Product Selector.

The table will be updated as new information will be released. Contributions and suggestions are welcomed!