Espressif ESP32 S3 Mini 1/1U Module

The ESP32-S3-MINI-1 and ESP32-S3-MINI-1U are general-purpose Wi-Fi + Bluetooth Low Energy MCU modules, offering powerful functionality with a wide range of peripheral interfaces. The modules are optimized in size, making them suitable for embedded systems, smart home devices, wearable electronics, and other IoT scenarios. The ESP32-S3-MINI-1 features a PCB onboard antenna, while the ESP32-S3-MINI-1U uses a connector for an external antenna. Both modules come with up to 8 MB of SPI flash, with some versions featuring 2 MB of SPI PSRAM.

Features

CPU and On-Chip Memory

• Integrated ESP32-S3 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 8 MB Quad SPI flash
• 2 MB embedded PSRAM (only for ESP32-S3FH4R2 chip)

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 interface, 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® (compatible with ISO 11898-1, CAN 2.0), ADC, Touch sensor, Temperature sensor, Timers, and Watchdog

Module Integrated Components

• 40 MHz integrated crystal oscillator

Antenna Options

• Onboard PCB antenna (ESP32-S3-MINI-1)
• Connector for external antenna (ESP32-S3-MINI-1U)

Operating Conditions

• Operating voltage/power supply voltage: 3.0 ~ 3.6 V
• Operating temperature range: –40 ~ 85 °C

Certifications

• Environmental Certifications: RoHS/REACH

Testing

• HTOL/HTSL/uHAST/TCT/ESD

Comparison of ESP32-S3-MINI-1 and ESP32-S3-MINI-1U Series Models