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Tiny green circuit board with pin headers, thumb-sized form factor

MCDODO

MCDODO Supermini ESP32-S3 Development Board 3pcs

SKU CH-3NEA-BKZDE

Thumb-sized ESP32-S3 board with Wi-Fi, 43 µA deep-sleep current and 11 GPIOs for wearable IoT projects

  • TypeSingle Board Computers
  • Powerful 160 MHz 32-bit ESP32-S3 processor for responsive IoT tasks
  • 11 b/g/n 2.4 GHz Wi-Fi with Station, SoftAP and mixed modes
  • Ultra-low deep-sleep draw of about 43 µA extends battery life
  • Tiny 22.52 x 18 mm thumb-sized board fits wearables and compact builds
  • Hardware AES-128/256, RSA, HMAC, secure boot for strong device security

Ultra-small IoT development board

The MCDODO Supermini ESP32-S3 Development Board is a high-performance low-power board built around an ESP32-S3 32-bit single-core processor running at 160 MHz. It delivers WiFi connectivity using the 802.11 b/g/n protocol at 2.4 GHz with support for Station mode SoftAP mode SoftAP+Station mode and mixed mode. The ultra-small thumb-sized form factor measuring 22.52 x 18 mm makes it suitable for wearable projects and compact IoT applications.

Makers needing minimal footprint and low power

This board suits developers working on low-power IoT applications and wireless wearable devices where size and deep-sleep consumption of about 43 µA matter. It provides rich interfaces including 1xI2C 1xSPI 2xUART 11xGPIO with PWM and 4xADC alongside cryptographic hardware acceleration for AES-128/256 hash RSA HMAC digital signature and secure boot. Builders who require more GPIO pins larger flash storage or multi-core processing should consider other platforms.

4 Mflash built-in storage capacity

The board includes 4Mflash built-in memory alongside 400KB SRAM and 384KB ROM which determines how much application code and data can be stored on the device. This capacity fits many sensor-driven wearable and edge projects but limits more complex firmware or local logging requirements. Match your firmware size against this figure before choosing the board.

Priekšrocības

  • Powerful 160 MHz 32-bit ESP32-S3 processor for responsive IoT tasks
  • 11 b/g/n 2.4 GHz Wi-Fi with Station, SoftAP and mixed modes
  • Ultra-low deep-sleep draw of about 43 µA extends battery life
  • Tiny 22.52 x 18 mm thumb-sized board fits wearables and compact builds
  • Hardware AES-128/256, RSA, HMAC, secure boot for strong device security

Specifikācijas

TypeSingle Board Computers

Jautājumi par šo preci

What are the 3 pieces in the pack — are they identical boards or different versions?

The pack contains three identical Supermini ESP32-S3 boards, each with a 32-bit single-core processor at 160 MHz, 4 M flash, 400 KB SRAM, 384 KB ROM, Wi-Fi 802.11 b/g/n at 2.4 GHz, Bluetooth, 11 GPIO with PWM, 4 ADC, 1 I²C, 1 SPI, 2 UART, and a 22.52 × 18 mm form factor.

What does the 160 MHz CPU speed mean for real-time sensor reading and wireless tasks?

The 160 MHz single-core ESP32-S3 can run sensor polling, PWM control, and Wi-Fi or Bluetooth stacks simultaneously, with deep-sleep current around 43 µA for battery-powered wearables.

Which wireless standards are supported and what throughput ceiling do they impose?

The board uses 802.11 b/g/n on the 2.4 GHz band with Station, SoftAP, and combined modes; the PHY rate is capped by the b/g/n specification, and Bluetooth is also integrated for short-range links.

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