A compact expansion board for the 18-pin ESP32-S3 SuperMini, with 15 colour-coded signal, VCC and GND rows for cleaner sensor and servo wiring. Two independent VCC rails, a 3 x 3 power block and a keyed battery input make it a practical base for prototypes and permanent builds.
Specifications
Datasheets
What's in the box
Fitted sockets and colour-coded headers. ESP32-S3 SuperMini module, battery and leads are not included.
Great for
Wiring & getting started
- Check the rail links.
For normal use, confirm both fitted 0R links select 3V3.
- Match the module orientation.
Rotate the ESP32-S3 SuperMini so its USB-C connector faces the carrier battery connector. Confirm the 5V, GND and 3V3 pads align with the 3 x 3 power block, then seat all 18 pins evenly.
- Measure before connecting a peripheral.
Power the module with no peripheral attached and check each red VCC row against a black GND pin. An unmodified board should read about 3.3 V.
- Connect signal, power and ground.
Left adapter labels 0 to 5 are row labels, not ESP32 GPIO numbers. Use the datasheet pin map when assigning pins in firmware.
Note: This carrier is not a lithium battery charger. Use a protected single-cell battery, a separate suitable charger and verify connector polarity. The BAT-selected rail follows battery voltage and may exceed 3.3 V.
