Catalog > Internet of Things (IOT) Related Products > More Platforms ESP32-S3 Mini Development Board ESP32-S3 Mini Development Board WVS ESP32-S3 MINI DEVELOPM BOARD ESP32-S3 Mini Development Board, Based on ESP32-S3FH4R2 Dual-Core Processor, 240MHz Running Frequency, 2.4GHz Wi-Fi & Bluetooth 5 148.69 ZAR inc for 1 Each 0 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview ESP32-S3-Zero (without pin header) and ESP32-S3-Zero-M (with pin header) are tiny in size with castellated holes, making them easy to integrate into other host boards. ESP32-S3-Zero comes with an onboard Type-C USB connector, which exposes most of the unused pins in a small form factor. It adopts ESP32-FH4R2 as a System-on-Chip (SoC) that integrates low-power WiFi and BLE5.0 with 4MB Flash and 2MB PSRAM. In addition, there are hardware encryption accelerator, RNG, HMAC and Digital Signature modules to meet the safety requirements of IoT and provide rich peripheral interfaces. Moreover, its low-power working mode supports most application scenarios such as IoT, mobile devices, wearable electronic devices, and smart homes. Features quipped with Xtensa® 32-bit LX7 dual-core processor, up to 240MHz main frequency. Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth® 5 (LE). Built-in 512KB of SRAM and 384KB ROM, onboard 4MB Flash memory and 2MB PSRAM. Castellated module and onboard ceramic antenna, allow soldering direct to carrier boards. Supports flexible clock, module power supply independent setting, and other controls to realize low power consumption in different scenarios. Integrated with USB serial port full-speed controller, 24 × GPIO pins allow flexible configuring pin functions. 4 × SPI, 2 × I2C, 3 × UART, 2 × I2S, 2 × ADC, etc. Hardware Description When using ESP32-S3-Zero with daughterboards, please avoid covering the ceramic antenna with PCB boards, metal, or plastic components. In ESP32-S3-Zero, GPIO33 to GPIO37 pins are not exposed; these pins are used for Octal PSRAM. ESP32-S3-Zero uses GPIO21 to connect with WS2812 RGB LED. Please refer to this link for WS2812 specifications. ESP32-S3-Zero does not employ a USB to UART chip. When flashing firmware, press and hold the BOOT button (GPIO0) and then connect the Type-C cable. The "TX" and "RX" markings on the board indicate the default UART0 pins for ESP32-S3-Zero. Specifically, TX is GPIO43, and RX is GPIO44. Hardware Connection Press the BOOT (GPIO0) key before connecting the Type-C cable each time download the firmware. Input 3.7V~6V for the castellated hole with 5V silkscreen when connecting the external power.