The ProS3 series is an ESP32-S3 development board with USB-C connector, battery charging, onboard RGB LED, and ultra low deep sleep current. The Pros3 uFL includes a u.FL connector for an external Antenna. The ProS3 with onboard antenna includes an onboard 3D high gain antenna. The ProS3 series is the TinyS3 but on steroids! More IO, 16 MB of Flash, ESD protection, dual LDOs and castellated headers.

The first 10 pins on each side of the USB connector are fully TinyPICO/TinyS3 footprint compatible and works with all TinyPICO shields.

Features & Specifications

• Dual 32 bit Xtensa LX7 cores @ up to 240 Mhz
• RISC-V Ultra Low Power Co-processor
• 2.4 GHz Wifi - 802.11 b/g/n
• Bluetooth 5, BLE + Mesh
• 16 MB QSPI Flash
• 8 MB of extra QSPI PSRAM
• 2x 700 mA 3.3 V LDO Regulators
• LDO2 is user controlled & auto-shuts down in deep-sleep
• Low power RGB LED
• ULTRA LOW Deep Sleep Current
• USB-C Connector with back-feed protection
• USB ESD protection
• Native USB + USB Serial JTAG
• LiPo Battery Charging + PicoBlade connector
• VBAT and 5V Sense Pins
• 3D High Gain Antenna or u.FL connector
• STEMMA QT connector powered by LDO1
• 27x GPIO including castellated headers
• JTAG pins on the header
• TinyPICO/ProS3 compatibility

ProS3 uFL pinout

ProS3 with onboard antenna pinout

Documentation

• ProS3 Info Page
• ESP32-S3 Getting Started Guide
• ESP32-S3 Datasheet
• Schematic, reference card, and more in the Unexpected Maker ESP32-S3 GitHub Repo

Note: The ProS3 uFL does not ship with an antenna. The customer is responsible for choosing and supplying their own 2.4 GHz antenna.