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SparkFun IoT RedBoard - ESP32 MicroPython Development Board

SparkFun

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SKU:
057-WRL-28434
MPN:
WRL-28434
SparkFun IoT RedBoard – ESP32 development board with WiFi, Bluetooth 4.2, Qwiic connector, microSD slot, USB-C, and LiPo charging
SparkFun IoT RedBoard – ESP32 with dual-core LX6 CPU, WiFi, Bluetooth 4.2, Qwiic connector, microSD slot, USB-C, LiPo charging, and MicroPython support out of the box View full description
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Technical Specifications

Brand:
SparkFun

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

Resources:

SparkFun IoT RedBoard – ESP32 MicroPython Development Board: Powerful & Python-Ready IoT Platform

The SparkFun IoT RedBoard – ESP32 is a feature-rich development board built around the ESP32-D0WDQ6 chip, specially programmed to run MicroPython out of the box. This makes it ideal for rapid prototyping with SparkFun’s 40+ MicroPython-capable Qwiic modules, IoT projects, and embedded applications. With dual-core Xtensa LX6 processors running up to 240 MHz, integrated WiFi (802.11 b/g/n), and Bluetooth v4.2 (BR/EDR + BLE), it provides a versatile platform for both low-power sensor networks and high-demand applications like streaming, voice encoding, and MP3 decoding.

The IoT RedBoard integrates SparkFun’s Qwiic Connect System, enabling solder-free I²C connectivity to an expanding ecosystem of sensors and peripherals. It also features a microSD card slot for data logging, a JST connector for LiPo batteries, and a built-in MCP73831 charger with MAX17048 fuel gauge for battery management. With USB-C connectivity (CH340G USB-to-serial), secure OTA firmware updates, and built-in TLS 1.2 hardware acceleration, this board is a developer-friendly platform for building secure IoT systems.

Key Features

  • Processor: ESP32-D0WD-V3 with dual-core 32-bit Xtensa LX6, up to 240 MHz.

  • Memory:

    • 448KB ROM

    • 520KB SRAM + 16KB RTC SRAM

    • External SPI flash (4/8/16 MB options).

  • Wireless Connectivity:

    • WiFi 802.11 b/g/n with data rates up to 150 Mbps.

    • Bluetooth v4.2 BR/EDR + BLE.

  • Qwiic Ecosystem Support: 4-pin Qwiic connector for seamless plug-and-play I2C expansion.

  • Peripheral Interfaces: UART, SPI, SDIO, I2C, I2S, IR, LED & Motor PWM, ADC, DAC, capacitive touch, GPIO, TWAI (CAN 2.0).

  • Storage & Expansion: microSD card slot for data logging.

  • Power Options:

    • USB-C connector (with CH340G USB-to-serial).

    • 2-pin JST for LiPo battery input.

    • Built-in LiPo charge IC (MCP73831) – default 500 mA.

    • Integrated fuel gauge (MAX17048).

  • Security & Updates: freeRTOS with LwIP, TLS 1.2 hardware acceleration, secure OTA updates.

  • Onboard LEDs:

    • CHG (charging)

    • PWR (power)

    • RX/TX (serial activity)

    • User LED

    • Addressable RGB LED (WS2812).

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