Everything About Robotics / Product guide
SparkFun IoT RedBoard - ESP32 MicroPython Development Board
SparkFun · WRL-28434
Affiliate disclosure: Everything About Robotics may earn a commission from qualifying purchases through this link. SparkFun handles checkout, fulfillment and returns.
The ESP32 MicroPython IoT RedBoard combines wireless connectivity with a familiar development-board layout. MicroPython comes preloaded, making the board a starting point for code-driven sensor experiments and connected prototypes. A Qwiic connector supports compatible I2C modules, while the microSD slot offers a place for project storage. Onboard single-cell LiPo charging and a fuel gauge support battery-powered designs when a suitable battery is selected. Choose this board for a custom project rather than assuming it is the same controller supplied in the RP2350-based MicroPython Inventor's Kit.
Specifications
| Platform | ESP32; MicroPython preloaded |
|---|---|
| Wireless | 802.11 b/g/n Wi-Fi; Bluetooth 4.2 BR/EDR and LE |
| USB | USB-C; CH340G serial converter |
| Expansion | Qwiic connector and microSD slot |
| Battery management | MCP73831 single-cell LiPo charger; MAX17048 fuel gauge |
| Default charge current | 500 mA |
Supplier price checked October 23, 2026: US$29.95; listed in stock at SparkFun. Price and availability may change. SparkFun confirms taxes, shipping, delivery and returns at its checkout.
Before you buy
Check the compatible battery, connector polarity and charge-current requirements in the hookup guide. Battery and storage inclusion are not established here.
Check current price, availability, taxes, shipping and returns at SparkFun before ordering.
Official product specifications and documentation
Product photograph: SparkFun Electronics, used with permission.