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Green rectangular development board with USB-C port and pin headers, 52 by 28 mm

Ruth's sister

Ruth's sister ESP32-DevKitC-32 development board 4MB

SKU CH-DVN9-9ZMKE

ESP32 dual-core board with 4 MB flash, CH340C USB-C, Wi-Fi and Bluetooth

  • Dual-core 32-bit MCU handles demanding IoT workloads
  • 4 MB external flash stores firmware and data reliably
  • CH340C USB driver gives stable high-speed programming
  • Three power options suit battery or mains projects
  • Compact 52×28 mm board weighs only 9.5 g

ESP32-DevKitC-32 development board

The Ruth's sister ESP32-DevKitC-32 is a compact IoT development board built around the ESP32-DOWDQ6-V3 dual-core 32-bit MCU with integrated Wi-Fi and Bluetooth. It provides 4MB of external flash storage and 520 kB of SRAM for firmware and data. Makers, students and engineers can program it using Arduino IDE, Mixly, Mind+ or Python.

Check USB driver and power options

Before ordering, verify that your host computer can install the CH340C USB-to-UART driver for the Type-C connector. The board accepts power from the USB port, a 3.3 V external source or a VIN input ranging from 5 V to 12 V; the battery variant limits VIN to 5.5 V. Ensure your power source matches the chosen input mode.

Thermals, noise and power draw

The board has no active cooling, so it runs silently during normal operation. Power consumption scales with Wi-Fi and Bluetooth activity and with the clock speed of the dual-core MCU. The small 52 mm by 28 mm PCB dissipates heat through its copper planes and the ESP32-WROOM-32 module's metal shield.

Punti di forza

  • Dual-core 32-bit MCU handles demanding IoT workloads
  • 4 MB external flash stores firmware and data reliably
  • CH340C USB driver gives stable high-speed programming
  • Three power options suit battery or mains projects
  • Compact 52×28 mm board weighs only 9.5 g

Caratteristiche tecniche

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Domande su questo articolo

What comes in the box and do I need to buy a cable or power supply separately?

The board includes a USB Type-C port with a CH340C driver chip for programming and power. It also accepts 5–12 V on the VIN pin or 3.3 V directly, so you can power it from USB, a battery up to 5.5 V, or an external supply.

Which memory version should I choose for my project?

This model provides 4 MB of external flash storage plus 520 kB of integrated SRAM and 448 kB of ROM, which is the only capacity offered for this board.

What does the dual-core 32-bit MCU with 520 kB SRAM mean when the code is running?

The ESP32-DOWDQ6-V3 runs two 32-bit cores sharing 520 kB SRAM, with Wi-Fi and Bluetooth built in, so tasks like networking and sensor reading can run in parallel on a 52×28 mm board weighing 9.5 g.

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