# ESP32 expansion board in UNO format, 6.5–16V,

> ESP32 expansion board in UNO format (reference 88059), compatible with 30-pin ESP32/ESP32S modules, including board 9006. Features 26 GVS connectors, 2 dedicated I2C groups, power supply via USB Type-C, Micro USB or DC jack 6.5-16V with integrated regulator, jumper-selectable 3.3V/5V output and PWR LED. Dimensions: 53.4 x 68.6 mm, pin spacing 25mm.

- Page: https://sigmanortec.ro/en/esp32-expansion-board-in-uno-format-6516v
- Price: 14.71 RON
- Availability: In stock; 1-2 zile
- Reference: 88059 · EAN: 5947057476943
- Category: Mechatronics and IoT > Shields and Expansion Boards
- Specifications: Supply Voltage: 6.5; Maximum Input Voltage: 16; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.027 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:16 (Europe/Bucharest)

## Description

Allows quick integration of an ESP32 or ESP32S module into UNO type projects, with GVS connectors for tidy wiring of sensors and servos. Offers flexible power supply via USB Type-C, Micro USB or DC 6.5-16V jack with integrated regulator, selectable 3.3V or 5V output from jumper and dedicated I2C connectors. Includes PWR LED for power confirmation.
Expansion board designed to facilitate the connection of the ESP32 or ESP32S module to various modules, sensors, servos and external devices. It has a design that reproduces the dimensions of the UNO boards and includes GVS (Ground–Voltage–Signal) connectors for each pin, allowing for quick and tidy connections without additional adaptations.
The board supports power supply via USB Type-C, USB Micro or DC jack (6.5–16V), with an integrated voltage regulator that ensures stable operation. The output voltage can be selected between 3.3V and 5V via a dedicated jumper, depending on the requirements of external modules. The power LED indicator (PWR) provides visual confirmation of the operating status.
I2C interfaces and standard development connectors make this board ideal for IoT projects, electronic prototyping, and educational applications.
This board is compatible with the ESP32 board with reference 9006 .
Specifications:
Compatible with ESP32 / ESP32S modules (30 pins)
Power supply via:
USB Type-C port (5V)
Micro USB port (5V)
DC jack: 6.5–16V (with integrated regulator)
Configurable voltage: 3.3V or 5V (jumper selectable)
Number of GVS interfaces (ground, power, signal): 26
I2C interfaces: 2 dedicated groups
Power indicator: PWR LED
Distance between pin lines: 25mm
Dimensions: 53.4 x 68.6 mm
Use:
No. | Interface / Component | Description / Function
1 | Power indicator (PWR) | LED indicating the presence of power supply on the board.
2 | USB 5V power interface | USB Type-C connector used to power the board at 5V.
3 | Power interface via DC jack (6.5–16V) | DC jack for external power; includes an internal voltage regulator .
4 | I2C extension interface (2 groups) | Two sets of dedicated pins for connecting I2C modules (SDA and SCL).
5 | IO extension interface (GVS) | Pin groups G (ground) , V (power) and S (signal) for connecting sensors, servo motors or other external devices.
6 | Mounting interface for development board | Compatible connector for mounting the ESP32 / ESP32S module (30 pins) .
7 | 3.3V/5V output interface | Configurable power output, selectable between 3.3V and 5V , depending on the jumper position.
8 | Voltage selection jumper interface (V) | Allows selection of the output voltage on the “V” line: 3.3V or 5V , depending on the needs of the connected module.