The SparkFun Thing Plus ESP32-S2 WROOM is a Feather form-factor development board built around Espressif's ESP32-S2 SoC with integrated 2.4 GHz Wi-Fi. It features enhanced security over the original ESP32, including transparent flash and RAM encryption, secure boot with signed firmware, and dedicated HMAC and Digital Signature modules.

The board includes a LiPo charging circuit, USB-C connector, Qwiic connector for I²C peripherals, and a RISC-V ULP co-processor for low-power operation. Note that the ESP32-S2 does not include Bluetooth — it focuses on Wi-Fi connectivity for IoT applications.

Key Features

• ESP32-S2 WROOM Module – 2.4 GHz 802.11 b/g/n Wi-Fi up to 150 Mbps
• Enhanced Security – Flash/RAM encryption, secure boot, HMAC, and Digital Signature modules
• RISC-V ULP Co-Processor – Ultra-low-power processing for battery-efficient designs
• LiPo Charging Circuit – Onboard battery management for portable projects
• USB-C Connector – Modern USB interface for programming and power
• Qwiic Connector – Solderless I²C connection for sensors and accessories
• Feather Form Factor – Compatible with Feather-compatible shields and accessories
• Additional Interfaces – DVP camera interface, LCD interface, and integrated temperature sensor

Specifications

• SoC – Espressif ESP32-S2 WROOM
• Wi-Fi – 802.11 b/g/n, up to 150 Mbps
• Bluetooth – Not included (Wi-Fi only)
• Co-Processor – RISC-V ULP
• USB – USB-C
• Form Factor – Feather / Thing Plus

Ideal For

• IoT and connected device prototyping
• Home automation projects
• Wearable electronics with battery power
• Security-sensitive wireless applications

Package Contents

• 1× SparkFun Thing Plus – ESP32-S2 WROOM