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ESP8266 vs ESP32 vs ESP32-S2 vs ESP32-C3

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Compare Espressif SoCs ESP8266 vs ESP8285 vs ESP32 vs ESP32-S2 vs ESP32-C3

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Short name
ESP32ESP32-C3ESP32-C3-WROOM-02UESP32-S2ESP8266ESP8285
DescriptionESP32-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.
Websiteespressif.com/...espressif.com/...espressif.com/...espressif.com/...espressif.com/...espressif.com/...
Release date201620202021201920142016
Product details
CPUTensilica Xtensa LX6
32 bit Dual-Core @ 160 / 240Mhz
RISC-V 32-bit Single-Core @ 160 MHz32-bit RISC-V single-core processorTensilica 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)
CoprocessorULPULP (RISC-V)
RAM520 KB400 KB320 KB50 KB less than160 KB
ROM (Flash)448 KB384 KB128 KB0 use external SPI flash1,024 KB
UART322222
SPIYes 4Yes 3Yes 3Yes 4 (OSPI)Yes 2Yes 2
Wi-FiYes 802.11b/g/nYes 802.11b/g/nYes 802.11b/g/nYes 802.11b/g/nYes 802.11b/g/n (max 65Mbps)Yes 802.11b/g/n (max 65Mbps)
Bluetooth®Yes 4.2 BR/EDR + BLEYes 5.0 + BLEYes 5.0 BLENoNoNo
USB HostNoNoYesNoNo
Ethernet (LAN, RJ45)Yes 10/100MbpsNoNoNoNo
RTC Memory16 KB8 KB8 KB16 KB
External SRAM8 MB up to128 MB up to16 MB up to
External Flash16 MB up to1 GB up to16 MB up to
ESP-MESHYesYesYesYesYes
CANYes v2.0No
GPIO3422 (up to)15 (up to)4317 (up to)17 (up to)
Hall effect sensorYesNoNoNoNoNo
Temperature sensorYesYesYesYesNoNo
Touch sensors10No14NoNo
I²CYes up to 2Yes up to 1Yes up to 1Yes up to 2Yes up to 1Yes up to 1
I2S211122
ADCYes 12 bit SAR ADC up to 18 channelsYes 2 × 12-bit SAR ADCs, up to 6 channelsYes 2 × 12-bit ADC, up to 6 channelsYes 12 bit SAR ADC up to 20 channelsYes 10 bitYes 10 bit
DACYes 8 bit up to 2 channelsNoYes 8 bit up to 2 channelsNoNo
PWMYes up to 8Yes up to 6Yes 8Yes 4No
SDMMCYesNoNoNo
RMT (remote control)YesYesNoNo
LCD InterfaceNoNoYesNoNo
Camera InterfaceNoNoNoYesNoNo
Secure flash1024-bit OTP secure boot4096-bit OTP4096-bit OTP secure boot
Cryptography supportAES, SHA-2, RSA, ECC, RNGAES-128/256, RSA Accelerator, SHA Accelerator, Random Number Generator (RNG), HMACAES-128/192/256, SHA-2, RSA, RNG, HMAC, Digital Signature
Deep sleep consumption10 µA, Yes5 µA5 µA20 µA, Yes20 µA
Dimensions
Height6 mm5 mm18 mm7 mm5 mm5 mm
Width6 mm5 mm20 mm7 mm5 mm5 mm
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Compare Espressif ESP8266 vs ESP8285 vs ESP32 vs ESP32-S2 vs ESP32-C3
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Jan. 21st 2024 5:27:20 AM
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