Boardoza ESP32-S3-WROOM-1 Wi-Fi and Bluetooth LE Evaluation Board
The Boardoza B-ESP32-S3-EVAL is an evaluation board designed for developing wireless embedded systems and prototypes with the ESP32-S3-WROOM-1 module. In addition to the ESP32-S3’s Wi-Fi and Bluetooth LE capabilities, the board has two USB-C connections: J4 connects to the module’s USB lines, while J5 provides a UART serial connection through the CH340G. The board can be powered through USB, its 18650 battery holder, or the appropriate power header pins. The PAM2310 regulator (U1) provides the 3.3 V rail; U4 charges a single-cell Li-ion battery from USB, while U3 provides battery protection. Switch SW1 connects or disconnects the battery from the board’s power path. Headers J1, J2, and J3 provide access to GPIOs and power rails, while the BOOT and RESET buttons make development more convenient. The board is suitable for a range of development projects, from wireless applications to USB/UART communication and battery-powered prototypes.
Key Features
- ESP32-S3-WROOM-1 module with Wi-Fi and Bluetooth LE
- ESP32-S3 USB connection through J4
- USB-to-UART connection through the CH340G on J5
- 5 V board power through USB-C
- Supports external I²C OLED displays through the J1 header
- Regulated 3.3 V power through J1 pin 1 or J3 pin 1
- Holder for a single-cell 18650 Li-ion battery
- TPB4056A20 battery charger (U4) for USB charging
- BQ29700 battery protection (U3) with Q1/Q2 MOSFETs
- 3.3 V regulation using the PAM2310 (U1)
- SW1 connects or disconnects the battery from the board’s power path
- BOOT (IO0) and RESET (CHIP_PU) buttons
- Expansion headers provide access to GPIOs and the UART0 serial interface
- SW1: Controls the battery’s connection to the board’s power path.
- SW2 – BOOT: Controls the IO0 line.
- SW3 – RESET: Controls the CHIP_PU/EN line. The board can be used for wireless IoT prototypes, USB and UART communication experiments, GPIO-based peripheral development, and battery-powered embedded system projects.
Technical Specifications
- Item
- B-ESP32-S3-EVAL
- Input Voltage
- 5 V via USB-C or J3 pin 19; regulated 3.3 V via J1 pin 1 or J3 pin 1; single-cell 18650 Li-ion battery
- Functions
- Wi-Fi, Bluetooth LE, ESP32 USB, USB-to-UART, GPIO expansion, battery charging and protection
- Main Module
- ESP32-S3-WROOM-1
- USB Interfaces
- J4: ESP32-S3 USB; J5: CH340G USB-to-UART
- Battery Support
- Single-cell 18650 Li-ion battery
- Board Dimensions
- 100x40mm
- Operating Temperature
- -40 °C to +65 °C
Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.