ESP32 제품군 설명: 기술적 차이점과 각 제품의 적용 분야

 

ESP32 제품군 설명: 기술적 차이점과 각 제품의 적용 분야

 

에스프레시프는 단순히 "하나의" ESP32를 만든 것이 아닙니다. 특정 목적에 맞게 각 버전을 최적화한 전체 제품군을 구축했습니다. 프로젝트에 적합한 칩을 선택하는 데 도움이 되는 보다 명확한 기술적 분석을 소개합니다.

 

1. ESP32: The All Rounder

Specs:

• Dual-core Xtensa

• WiFi 2.4 GHz + Bluetooth Classic + BLE

• 520 KB SRAM

• External flash (4–16 MB)

• Rich peripherals (SPI, I2C, UART, CAN, DAC, ADC, touch pins)

Where it’s used:

• LED displays (P10/P6/P4)

• Smart switches, plugs, home devices

• Audio streaming, IoT gateways

• Robotics, general prototyping

Why: It’s powerful, flexible, and has the best library support.

2. ESP32 S2: Secure USB MCU

Specs:

• Single-core Xtensa

• No Bluetooth

• Full-speed USB OTG

• Improved security hardware (HMAC, Digital Signature unit)

• 320 KB SRAM

Where it’s used:

• USB keyboards, USB gadgets

• Secure IoT devices

• Industrial authentication devices

Why: USB + strong security features make it unique.

3. ESP32-S3: AI Friendly Successor

Specs:

• Dual-core Xtensa

• BLE 5 + WiFi

• Vector instructions for AI acceleration

• Larger memory options

• Built in LCD & camera interfaces (in some variants)

Where it’s used:

• Camera modules (ESP32-S3-CAM)

• Basic AI/ML workloads on-device

• Smart audio, keyword detection

• Wearables and human detection systems

Why: Best choice for camera + AI at low cost.

4. ESP32-C3: RISC-V: Low Power Option

Specs:

• Single core RISC-V 32-bit

• WiFi + BLE 5

• 400 KB SRAM

• Very low power consumption

• Secure boot + flash encryption

Where it’s used:

• Battery powered IoT

• Smart locks, sensors, meters

• WiFi modules replacing ESP8266

• Low cost consumer electronics

Why: Cheap, efficient, and RISC-V.

5. ESP32-C6: WiFi 6 + Matter Future Device

Specs:

• RISC-V 32-bit

• WiFi 6 (802.11ax)

• BLE 5.2

• Thread + Zigbee support

• 512 KB SRAM

Where it’s used:

• Matter IoT devices

• Smart home hubs

• Multi protocol smart bulbs/switches

• Future proof WiFi 6 products

Why: One chip, multiple modern IoT protocols.

6. ESP32-H2 – No WiFi, Pure Thread/Zigbee

Specs:

• RISC-V 32 bit

• BLE 5.2

• Thread + Zigbee

• Very low power

• No WiFi at all

Where it’s used:

• Smart home mesh networks

• Matter bridges

• Zigbee & Thread devices (sensors, actuators)

• Ultra low power nodes

Why: Designed purely for mesh based low-power systems.

■ Quick Cheat Sheet:

ESP32 → Best all rounder

ESP32-S2 → USB devices, secure products

ESP32-S3 → Camera + AI + BLE 5

ESP32-C3 → Low-cost RISC-V + WiFi/BLE

ESP32-C6 → WiFi6 + Matter future devices

ESP32-H2 → Thread/Zigbee mesh nodes