# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**12 device listed.**

## FeatherS2 Neo ESP32-S2

ESP32-S2 Feather-format board by Unexpected Maker with 4MB flash, 2MB PSRAM, 5×5 RGB LED matrix, LiPo charging, and STEMMA QT — designed for colorful wearable and IoT projects.

[Details](https://openhardware.directory/devices/feathers2-neo) | [Markdown](https://openhardware.directory/devices/feathers2-neo/md)

## TinyS2 ESP32-S2

Ultra-compact ESP32-S2 development board by Unexpected Maker in the TinyPICO form factor, with 4 MB flash, 2 MB PSRAM, native USB, WiFi, and LiPo charging at just 17.8 × 41 mm.

[Details](https://openhardware.directory/devices/tinys2-esp32-s2) | [Markdown](https://openhardware.directory/devices/tinys2-esp32-s2/md)

## ProS3[D] ESP32-S3 by Unexpected Maker

The ProS3[D] is Unexpected Maker's flagship ESP32-S3 development board featuring a dual antenna system (onboard 3D high-gain + u.FL for external), an I2C battery fuel gauge, 16MB flash, 8MB PSRAM, dual 700mA LDOs, and STEMMA QT — with software-switchable RF routing.

[Details](https://openhardware.directory/devices/pros3d-esp32-s3) | [Markdown](https://openhardware.directory/devices/pros3d-esp32-s3/md)

## FeatherS3[D] ESP32-S3 by Unexpected Maker

The FeatherS3[D] is Unexpected Maker's Feather-form ESP32-S3 board with a dual antenna system (onboard + u.FL, software-switchable), I2C battery fuel gauge, 16MB flash, 8MB PSRAM, two STEMMA QT connectors, and LiPo charging — all in the standard Adafruit Feather footprint.

[Details](https://openhardware.directory/devices/feathers3d-esp32-s3) | [Markdown](https://openhardware.directory/devices/feathers3d-esp32-s3/md)

## TinyS3 ESP32-S3 with u.FL

Ultra-compact ESP32-S3 board by Unexpected Maker in TinyPICO form factor with u.FL external antenna connector, 8MB flash, 8MB PSRAM, LiPo charging, and dual-core 240 MHz.

[Details](https://openhardware.directory/devices/tinys3-esp32-s3-ufl) | [Markdown](https://openhardware.directory/devices/tinys3-esp32-s3-ufl/md)

## TinyS3[D] ESP32-S3 by Unexpected Maker

The TinyS3[D] is Unexpected Maker's ultra-compact ESP32-S3 board in the TinyPICO form factor, featuring a dual antenna system (onboard + u.FL, software-switchable), I2C battery fuel gauge, 8MB flash, 8MB PSRAM, LiPo charging, and 17 GPIO pins — all in a tiny castellated module.

[Details](https://openhardware.directory/devices/tinys3d-esp32-s3) | [Markdown](https://openhardware.directory/devices/tinys3d-esp32-s3/md)

## FeatherS3 ESP32-S3 with u.FL

Unexpected Maker's pro ESP32-S3 Feather board with u.FL external antenna connector, 16MB flash, 8MB PSRAM, dual STEMMA QT connectors, LiPo charging, and dual 700mA regulators.

[Details](https://openhardware.directory/devices/feathers3-esp32-s3-ufl) | [Markdown](https://openhardware.directory/devices/feathers3-esp32-s3-ufl/md)

## ProS3 ESP32-S3 with u.FL

Unexpected Maker's ProS3 ESP32-S3 with u.FL external antenna, 16MB flash, 8MB PSRAM, 27 GPIO castellated headers, dual LDO regulators, LiPo charging, and STEMMA QT.

[Details](https://openhardware.directory/devices/pros3-esp32-s3-ufl) | [Markdown](https://openhardware.directory/devices/pros3-esp32-s3-ufl/md)

## FeatherS2 ESP32-S2

Full-featured ESP32-S2 Feather-compatible board by Unexpected Maker with 16MB Flash, 8MB QSPI PSRAM, WiFi, native USB-C, 21 GPIO, STEMMA QT, APA102 RGB LED, ambient light sensor, and dual 700mA LDOs.

[Details](https://openhardware.directory/devices/feathers2-esp32-s2) | [Markdown](https://openhardware.directory/devices/feathers2-esp32-s2/md)

## TinyS3 ESP32-S3

Ultra-compact ESP32-S3 dev board by Unexpected Maker in the TinyPICO form factor — dual-core 240 MHz LX7, 8 MB Flash, 8 MB PSRAM, WiFi, BLE 5, 17 GPIO, LiPo charging at 35 × 17.8 mm.

[Details](https://openhardware.directory/devices/tinys3-esp32-s3) | [Markdown](https://openhardware.directory/devices/tinys3-esp32-s3/md)

## FeatherS3 ESP32-S3

Pro ESP32-S3 Feather-form-factor board by Unexpected Maker — dual-core 240 MHz LX7, 16 MB Flash, 8 MB PSRAM, WiFi, BLE 5, 21 GPIO, 2× STEMMA connectors, dual LDOs, LiPo charging.

[Details](https://openhardware.directory/devices/feathers3-esp32-s3) | [Markdown](https://openhardware.directory/devices/feathers3-esp32-s3/md)

## ProS3 ESP32-S3

Unexpected Maker's ultimate ESP32-S3 dev board — dual-core 240 MHz LX7, 16 MB Flash, 8 MB PSRAM, WiFi, BLE 5, 27 GPIO, 2× LDOs, castellated headers, STEMMA, LiPo charging, JTAG.

[Details](https://openhardware.directory/devices/pros3-esp32-s3) | [Markdown](https://openhardware.directory/devices/pros3-esp32-s3/md)