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Three small green circuit boards with castellated edges and a ceramic antenna patch

KEHIPI

KEHIPI ESP32-S3 Mini Development Board 3PCS

SKU CH-Y18J-EEQTM

Pack of three ESP32-S3 boards with dual-core 240 MHz processor, 2.4 GHz Wi-Fi, Bluetooth 5, 4 MB Flash and 2 MB PSRAM

  • Dual-core 240 MHz processor handles parallel IoT tasks
  • 34 GPIO pins support SPI I2C UART I2S ADC interfaces
  • 4 GHz Wi-Fi 802.11 b/g/n connects sensors to cloud
  • Bluetooth 5 LE enables low-power links to phones or gateways
  • 4 MB Flash plus 2 MB PSRAM stores firmware and buffers data

Triple-pack ESP32-S3 boards for parallel prototyping

This pack supplies three identical ESP32-S3 Mini development boards, each built around the ESP32-S3FH4R2 module with a dual-core Xtensa LX7 processor clocked at 240MHz. Onboard memory includes 512KB SRAM, 384KB ROM, 4MB Flash and 2MB PSRAM. Integrated 2.4GHz Wi-Fi 802.11 b/g/n and Bluetooth 5 LE provide wireless connectivity for IoT edge projects.

Replaces single-board purchases when concurrent

Buyers who previously ordered one board at a time can now run firmware on multiple nodes simultaneously, accelerating mesh-network debugging or sensor-cluster validation. The jump is worth it when a project demands synchronized flashing, A/B firmware comparison or redundant gateway prototypes without waiting for reorders.

Sustained operation stays stable through low-power

Flexible clock management and independent module power-supply settings let each board throttle frequency during idle periods, reducing thermal load during long-running data-logging sessions. The castellated module design with ceramic antenna maintains consistent RF performance when boards are soldered directly onto custom carrier PCBs inside sealed enclosures.

How it compares

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

Price $35.99
Cheaper than about 62% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameWaveshare
Model name3PCS ESP32-S3-Zero
Part number3PCS ESP32-S3-Zero

Questions about this item

What board footprint do the castellated edges of the ESP32-S3 Mini fit?

The castellated module is designed for direct soldering onto a carrier board; match the pad pitch to the module outline when laying out the footprint.

How do I put the ESP32-S3 Mini into download mode for the first firmware flash?

Hold the BOOT button, press and release the RST button, then release BOOT; the USB serial port will appear ready for the flashing tool.

When should I plan to reflow or replace the onboard 4MB Flash chip?

The 4MB Flash is rated for typical endurance cycles; rework is only needed if write failures appear after extensive OTA updates.

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