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Small green circuit board with dual-row pin headers and separate USB-C adapter board

LORDWORLD

LORDWORLD ESP32-S3FH4R2 Mini Development Board with USB Adapter

SKU CH-4ZB0-2VK99

A compact ESP32-S3FH4R2 board with dual-core 240MHz processor, 2.4GHz Wi-Fi and Bluetooth LE, 34 GPIOs, and USB Type-C adapter included

  • Dual-core Xtensa LX7 processor reaches 240 MHz for responsive edge computing
  • 512 KB SRAM plus 384 KB ROM with 2 MB PSRAM and 4 MB Flash for ample program space
  • Integrated 2.4 GHz Wi-Fi and Bluetooth LE enables wireless IoT connectivity
  • 34 multi-function GPIO pins with SPI, I2C, UART, ADC and PWM for flexible peripheral control
  • Onboard FPC 8-pin connector adapts to USB Type-C via included adapter board

ESP32-S3FH4R2 Mini Development Board

The LORDWORLD ESP32-S3FH4R2 Mini Development Board is a compact IoT edge device built around a Xtensa 32-bit LX7 dual-core processor running at up to 240MHz. It provides 512KB of SRAM, 384KB of ROM, 2MB of PSRAM and 4MB of Flash memory. Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication delivers superior RF performance for connected projects. The board includes a USB adapter via an onboard FPC 8PIN connector.

Suitable for embedded developers and IoT prototyping

This board suits engineers and hobbyists building wireless IoT prototypes who need dual-core processing, ample on-board memory and 34 multi-function GPIO pins with SPI, I2C, UART, ADC and PWM interfaces. It is not suited for applications requiring wired Ethernet connectivity, cellular radios, higher-frequency Wi-Fi bands, or more than 4MB of Flash storage without external components. Buyers needing a larger GPIO count or different form factor should consider other options.

4MB Flash and 2MB PSRAM on ESP32-S3FH4R2

The single specification that decides fit is the combined 4MB Flash and 2MB PSRAM memory configuration on the ESP32-S3FH4R2 chip. This capacity determines whether your firmware, buffers and data structures fit without external memory. Verify your application's memory footprint against these exact figures before purchasing.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 88% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

How do I connect the board to a computer for programming, and which step do people often miss?

Plug the supplied USB Type-C adapter board into the onboard FPC 8PIN connector, then connect the USB cable; the step often missed is seating the FPC ribbon fully before locking the connector latch.

What part will need replacement first during long-term deployment?

The 4MB Flash memory has a finite write-erase cycle rating, so heavy logging or frequent OTA updates will wear it out before the 2MB PSRAM or the ESP32-S3FH4R2 silicon.

What thermal or power limit appears first when the dual-core processor runs at 240MHz continuously?

The on-board regulator and PCB copper area limit sustained current draw, so the chip will throttle or brown-out before the 2.4GHz Wi-Fi and Bluetooth LE radios hit their own thermal ceiling.

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