The ESP32-S3-WROOM-1 is a versatile Wi-Fi + Bluetooth Low Energy (BLE) MCU module powered by the ESP32-S3 series chip. In addition to its wide range of peripheral interfaces, the module boasts powerful neural network processing and signal processing capabilities, making it ideal for various AIoT application scenarios. These include wake word detection, voice command recognition, face detection and recognition, smart home devices, smart appliances, smart control panels, and smart speakers.
The ESP32-S3-WROOM-1 uses a PCB onboard antenna and is available in multiple models to meet different application needs.
Features
CPU and On-chip Memory
- Built-in ESP32-S3 series chip, Xtensa® dual-core 32-bit LX7 microprocessor (supports single-precision floating-point unit), with clock frequency up to 240 MHz
- 384 KB ROM
- 512 KB SRAM
- 16 KB RTC SRAM
- Up to 16 MB PSRAM
Wi-Fi
- 802.11 b/g/n
- Data rate up to 150 Mbps in 802.11n mode
- Frame aggregation (TX/RX A-MPDU, TX/RX A-MSDU)
- 0.4 µs guard interval
- Operating channel center frequency range: 2412 ~ 2484 MHz
Bluetooth
- Bluetooth Low Energy (Bluetooth LE): Bluetooth 5, Bluetooth mesh
- Supported data rates: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps
- Advertising Extensions
- Multiple Advertisement Sets
- Channel Selection Algorithm #2
- Coexistence of Wi-Fi and Bluetooth, sharing the same antenna
Peripherals
- GPIO, SPI, LCD, Camera interface, UART, I2C, I2S, IR remote, pulse counter, LED PWM, full-speed USB 2.0 OTG, USB Serial/JTAG controller, MCPWM, SDIO host interface, GDMA, TWAI® controller (ISO 11898-1 compliant), ADC, touch sensor, temperature sensor, timers, and watchdog
Module Integrated Components
- 40 MHz integrated crystal oscillator
- Up to 16 MB Quad SPI flash
Antenna Options
- Onboard PCB antenna (ESP32-S3-WROOM-1)
- External antenna via a connector (ESP32-S3-WROOM-1U)
Operating Conditions
- Operating voltage/power supply voltage: 3.0 ~ 3.6 V
- Operating temperature:
- 65°C version: –40 ~ 65°C
- 85°C version: –40 ~ 85°C
- 105°C version: –40 ~ 105°C
Testing
- HTOL, HTSL, uHAST, TCT, ESD
ESP32-S3-WROOM-1 Series Model Comparison
| Model Number | Flash (MB) | PSRAM (MB) | Operating Temperature (°C) | Dimensions (mm) |
|---|---|---|---|---|
| ESP32-S3-WROOM-1-N4 | 4 MB (Quad SPI) | - | -40 ~ 85 | 18.0 |
| ESP32-S3-WROOM-1-N8 | 8 MB (Quad SPI) | - | -40 ~ 85 | 18.0 |
| ESP32-S3-WROOM-1-N16 | 16 MB (Quad SPI) | - | -40 ~ 85 | 18.0 |
| ESP32-S3-WROOM-1-N4R2 | 4 MB (Quad SPI) | 2 MB (Quad SPI) | -40 ~ 85 | 18.0 |
| ESP32-S3-WROOM-1-N8R2 | 8 MB (Quad SPI) | 2 MB (Quad SPI) | -40 ~ 85 | 18.0 |
| ESP32-S3-WROOM-1-N4R8 | 4 MB (Quad SPI) | 8 MB (Quad SPI) | -40 ~ 85 | 25.5 |
| ESP32-S3-WROOM-1-N8R8 | 8 MB (Quad SPI) | 8 MB (Quad SPI) | -40 ~ 85 | 25.5 |
| ESP32-S3-WROOM-1-N16R8 | 16 MB (Quad SPI) | 8 MB (Quad SPI) | -40 ~ 85 | 25.5 |
| ESP32-S3-WROOM-1-N8R16V | 8 MB (Octal SPI) | 16 MB (Octal SPI) | -40 ~ 85 | 31.0 |
| ESP32-S3-WROOM-1-N16R16V | 16 MB (Octal SPI) | 16 MB (Octal SPI) | -40 ~ 85 | 31.0 |
Applications
- General low-power IoT sensor hub
- General low-power IoT data logger
- Camera video streaming
- OTT TV box/set-top box devices
- USB devices
- Voice recognition
- Image recognition
- Mesh networks
- Home automation
- Smart buildings
- Industrial automation
- Smart agriculture
- Audio equipment
- Health/medical/caregiving
- Wi-Fi toys
- Wearable electronics
- Retail & catering