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Small green circuit board with USB-C port and castellated edges

LORDWORLD

LORDWORLD ESP32-C3FN4 development board 4MB Flash 160MHz USB-C

SKU CH-5PNX-T23JX

ESP32-C3FN4 board with 2.4 GHz Wi-Fi and Bluetooth 5, 4 MB Flash, 400 KB SRAM, 15 GPIO pins and USB-C

  • RISC-V 32-bit single-core processor runs at 160MHz for responsive edge computing
  • 4MB onboard Flash and 400KB SRAM give ample space for firmware and buffers
  • 4GHz Wi-Fi 802.11 b/g/n plus Bluetooth 5 LE enable wireless IoT links
  • 15 GPIO pins with 3 SPI, 1 I2C, 2 UART, 1 I2S, 2 ADC support diverse sensors
  • Castellated module with ceramic antenna allows direct soldering to custom carrier boards

Compact RISC-V board for IoT prototypes

The LORDWORLD ESP32-C3FN4 board combines a 32-bit single-core processor running at 160MHz with 2.4GHz Wi-Fi 802.11 b/g/n and Bluetooth 5 LE in a castellated module. It provides 400KB SRAM, 384KB ROM and 4MB Flash for firmware and data storage. Fifteen GPIO pins expose 3 SPI, 1 I2C, 2 UART, 1 I2S and 2 ADC channels for sensor and actuator integration. A USB-C port supplies power and a full-speed serial interface for programming and debug.

Sustained low-power operation

Flexible clock control and independent module power-supply settings let the SoC scale frequency and voltage to match workload demands. The onboard ceramic antenna maintains wireless connectivity while the processor idles or runs at reduced speed. This architecture targets long-term battery-powered deployments where duty-cycled sensor reads and occasional network bursts dominate the duty cycle. Thermal load remains minimal because the single core does not sustain high-frequency compute for extended periods.

Wireless and peripheral limits

The 2.4GHz radio supports only 802.11 b/g/n rates, so throughput caps well below modern 5GHz or 6GHz bands. Bluetooth 5 LE provides low-energy links but not classic audio profiles. Fifteen GPIOs restrict simultaneous high-speed SPI, I2S and ADC usage; developers must multiplex functions when peripheral count grows. The USB-C connector carries USB 2.0 full-speed serial only, not high-speed bulk endpoints or video alternate modes.

How it compares

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

Price $15.99
Cheaper than about 92% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

How much power does the ESP32-C3FN4 board draw when running at 160MHz all day?

The RISC-V single-core processor supports flexible clock and independent module power supply settings to achieve low power consumption in different scenarios.

What must I already own to start developing with the USB Type-C port?

A host computer with a USB Type-C cable and a development environment such as ESP-IDF or Arduino IDE is required to program the board.

Can the 15 GPIO pins and 2.4GHz Wi-Fi work alongside older 802.11 b/g/n routers?

Yes, the board supports 2.4GHz Wi-Fi 802.11 b/g/n and Bluetooth 5 LE, so it will connect to legacy routers while using its 15 configurable GPIO pins for peripherals.

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