ESP32-S3 Mini Development Board - 4MB Flash 2MB PSRAM - 2.4GHz WiFi & Bluetooth - Soldered

The Waveshare ESP32-S3-Zero is a tiny ESP32-S3 development board with 2.4GHz Wi-Fi and Bluetooth 5 (LE), packing a dual-core 240MHz processor, 4MB Flash and 2MB PSRAM, USB-C and an onboard RGB LED into a thumbnail-sized footprint. This version comes with pin headers pre-soldered, ready to plug straight into a breadboard.

Its castellated edges let it be soldered directly onto a PCB like a module, making it ideal for compact IoT devices, wearables, smart home sensors and embedded projects. It can be programmed with Arduino, ESP-IDF or MicroPython.

Versions

Features

• Xtensa 32-bit LX7 dual-core processor, up to 240MHz
• 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE)
• 512KB SRAM, 384KB ROM, 4MB Flash and 2MB PSRAM
• Castellated module with onboard ceramic antenna, can be soldered directly to carrier boards
• Flexible clock and independent power settings for low power operation
• Integrated full-speed USB serial controller via USB-C, no separate USB to serial chip needed
• 24 GPIO pins with flexible pin function configuration
• 4 × SPI, 2 × I2C, 3 × UART, 2 × I2S, 2 × ADC
• Onboard WS2812 RGB LED, BOOT and RESET buttons
• Supports Arduino, ESP-IDF and MicroPython

Specifications

What's On Board

1. ESP32-S3FH4R2: dual-core processor, up to 240MHz
2. USB Type-C port
3. ME6217C33M5G: low dropout regulator, 800mA max
4. WS2812 RGB LED
5. 2.4GHz ceramic antenna
6. BOOT button: hold it and press RESET to enter download mode
7. RESET button
8. ESP32-S3 pins

Pinout

Dimensions

Documentation: ESP32-S3-Zero Wiki

Resources

• Detailed Guide to ESP32: Exploring Popular Models, Features, and Applications
• Installing and Configuring Arduino IDE for ESP32
• Arduino, ESP32, & Raspberry Pi Pinout Reference for I2C, SPI, and UART

This product can be found here:

• Boards
• ESP32 Development Boards
• Espressif
• Microcontrollers
• Waveshare
• Wireless Development Boards