The ESP32-S3-WROOM-1 and ESP32-S3-WROOM-1U are general-purpose Wi-Fi + Bluetooth Low Energy MCU modules, equipped with the ESP32-S3 series chip. In addition to offering a wide range of peripheral interfaces, the modules feature powerful neural network computing and signal processing capabilities, making them suitable for various AIoT applications such as wake word detection, voice command recognition, facial detection and recognition, smart home devices, smart appliances, smart control panels, and smart speakers. The ESP32-S3-WROOM-1 uses a PCB onboard antenna, while the ESP32-S3-WROOM-1U is designed with a connector for an external antenna.
Features
CPU and On-Chip Memory
- Integrated ESP32-S3 series chip with 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
- Supports 802.11 b/g/n
- Data rates 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
- Supports data rates of 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps
- Advertising Extensions
- Multiple Advertisement Sets
- Channel Selection Algorithm #2
- Coexistence of Wi-Fi and Bluetooth with shared antenna
Peripherals
- GPIO, SPI, LCD, Camera interface, UART, I2C, I2S, Infrared remote, Pulse counter, LED PWM, Full-speed USB 2.0 OTG, USB Serial/JTAG controller, MCPWM, SDIO host interface, GDMA, TWAI® controller (compatible with ISO 11898-1), 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)
- Connector for external antenna (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
Certifications
- Environmental Certifications: RoHS/REACH
Testing
- HTOL/HTSL/uHAST/TCT/ESD
Comparison of ESP32-S3-WROOM-1/1U Modules
| Model | Chip | Flash | PSRAM | Antenna | Dimensions (mm) |
|---|---|---|---|---|---|
| ESP32-S3-WROOM-1-N4 | ESP32-S3 | 4 MB | 0 | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-N8 | ESP32-S3 | 8 MB | 0 | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-N16 | ESP32-S3 | 16 MB | 0 | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-H4 (105 °C) | ESP32-S3R2 | 4 MB | 2 MB (Quad SPI) | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-H8R2 | ESP32-S3R2 | 8 MB | 2 MB (Quad SPI) | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-N8R2 | ESP32-S3R2 | 16 MB | 2 MB (Quad SPI) | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-N16R2 | ESP32-S3R2 | 16 MB | 2 MB (Quad SPI) | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-H4R8 (105 °C) | ESP32-S3R8 | 4 MB | 8 MB (Quad SPI) | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-N8R8 (65 °C) | ESP32-S3R8 | 8 MB | 8 MB (Quad SPI) | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1-N16R8 (65 °C) | ESP32-S3R8 | 16 MB | 8 MB (Quad SPI) | PCB onboard antenna | 18 × 25.5 × 3.1 |
| ESP32-S3-WROOM-1U-N4 | ESP32-S3 | 4 MB | 0 | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N8 | ESP32-S3 | 8 MB | 0 | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N16 | ESP32-S3 | 16 MB | 0 | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N4R2 | ESP32-S3R2 | 4 MB | 2 MB (Quad SPI) | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N8R2 | ESP32-S3R2 | 8 MB | 2 MB (Quad SPI) | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N16R2 (85 °C) | ESP32-S3R2 | 16 MB | 2 MB (Quad SPI) | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N4R8 (85 °C) | ESP32-S3R8 | 4 MB | 8 MB (Quad SPI) | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N8R8 (65 °C) | ESP32-S3R8 | 8 MB | 8 MB (Quad SPI) | IPEX external antenna connector | 18 × 19.2 × 3.2 |
| ESP32-S3-WROOM-1U-N16R8 (65 °C) | ESP32-S3R8 | 16 MB | 8 MB (Quad SPI) | IPEX external antenna connector | 18 × 19.2 × 3.2 |