SparkFun Thing Plus - ESP32 WROOM (Micro-B)

The SparkFun ESP32 Thing Plus (Micro-B) is the perfect foundation for your Internet of Things projects. Powered by the ESP32 WROOM module from Espressif™, this board features a highly adaptive Xtensa® Dual-Core 32-bit LX6 microprocessor operating at up to 240MHz, backed by 16MB of embedded Flash storage and 520KB of internal SRAM.

This board provides the essential wireless capabilities you need to get your connected ideas off the ground:

• WiFi (802.11b/g/n): Dependable 2.4GHz transceiver for local network and cloud connectivity.
• Dual-Mode Bluetooth®: Support for both Classic Bluetooth and Bluetooth Low Energy (BLE).
• Hardware Encryption: Built-in acceleration for AES, SHA2, ECC, and RSA-4096 to keep your data secure.

By combining these protocols with an ultra-low 2.5 µA deep-sleep current, you can build incredibly efficient, battery-operated sensor nodes that reliably report data over extended periods of time.

The Thing Plus Advantage

This board is built using the SparkFun Thing Plus form factor, making it fully compatible with the popular Adafruit Feather footprint. It breaks out 21 multifunctional GPIO pins to standard 0.1-inch spaced headers. The ESP32 integrates an excellent set of peripherals, giving you access to capacitive touch sensors, high-speed SPI, UART, I²S audio output, and I²C.

To make using the ESP32 WROOM Thing+ as easy to use as possible, we have equipped this board with several built-in features:

• Solderless Qwiic Connector: Seamlessly integrate the board into SparkFun's ecosystem of plug-and-play I²C sensors, actuators, and displays.
• Integrated Power Management: Features a micro-B USB connector for primary power and programming, plus a 2-pin JST connector for a LiPo battery.
• Status Indicators: Includes a yellow charge LED and a blue status/test LED for quick visual feedback.

Whether you are turning on a single LED or streaming data to your chosen IoT platform, the ESP32 WROOM Thing Plus can be programmed just like any standard microcontroller. You can even utilize the familiar Arduino IDE by installing the updated ESP32 Arduino Core, making this a foundational starting point for your next connected build.