ESP32-C3 SuperMini Expansion Board USB Battery Charging GPIO Breakout Module

🔧 ESP32-C3 SuperMini Expansion Board | AuscomTech

This expansion board is designed for the ESP32-C3 SuperMini development board, providing a more practical breakout platform for wiring, power distribution, and module integration.

It expands the available I/O into clearly accessible header connections, making it easier to connect sensors, modules, jumper wires, and external circuits during development and testing.

The board also supports connection of an external 3.7V lithium battery with USB charging functionality, making it suitable for portable ESP32-C3 projects, wireless nodes, and compact embedded builds.

⭐ Key Features

• ESP32-C3 SuperMini compatible – Specifically designed to suit the ESP32-C3 SuperMini development board form factor.
• GPIO breakout layout – Brings the module pins out to accessible headers for easier prototyping and wiring.
• 3.7V lithium battery support – Allows connection of a single-cell lithium battery for portable operation.
• USB charging function – Supports charging of the connected lithium battery through the board USB input.
• Dual power rail output – VCC1 and VCC2 power outputs are provided for external connections.
• Selectable output voltage – Default output is 3.3V, with PCB pad modification support for 3.7V output where required.
• PH2.0 battery interface – Fitted with a PH2.0 connector for compatible battery packs.
• Convenient sensor connection – Well suited for development work involving modules, probes, and low-voltage peripherals.

📊 Technical Specifications

• Compatibility: ESP32-C3 SuperMini development board
• Wireless Platform Support: WiFi and Bluetooth via installed ESP32-C3 SuperMini board
• Battery Type: 1-cell 3.7V lithium battery
• Charging Support: USB battery charging
• External Battery Connector: PH2.0
• Default Power Output: 3.3V
• Optional Modified Output: 3.7V via PCB solder bridge modification
• Power Outputs: VCC1 and VCC2
• Board Type: Expansion / breakout board
• Use Case: GPIO access, sensor hookup, portable ESP32-C3 projects

🧩 Typical Applications

• ESP32-C3 prototyping and testing
• Wireless sensor nodes
• Battery-powered IoT devices
• Home automation controllers
• Module and sensor evaluation
• Compact embedded development projects

⚠️ Important Notes

• ESP32-C3 SuperMini controller board is typically used with this expansion board and may not be included unless stated in the product variation.
• Default VCC1 and VCC2 output is 3.3V.
• Changing output to 3.7V requires hardware modification by removing the 0R resistor and bridging the relevant solder pads.
• Only use suitable single-cell 3.7V lithium batteries with the correct PH2.0 connector polarity.
• Please verify pin layout and voltage requirements before connecting sensors or external modules.

📦 Package Includes

• 1 × ESP32-C3 SuperMini Expansion Board

🔗 Recommended Accessories (Not Included)

• ESP32-C3 SuperMini board – main controller for the expansion base
• 3.7V lithium battery with PH2.0 plug – portable power source
• Jumper wire set – quick connection to sensors and modules
• USB cable – power and battery charging input