Keyes ESP32 Core Board Development Expansion Board
Keyes ESP32 Core Board Development Expansion Board
Equipped with WROOM-32 Module
This ESP32 Development Board Kit consists of a Keyes ESP32 Core Board combined with a Keyes ESP32-IO Expansion Board, designed to make ESP32 development, prototyping, and debugging simple and convenient.
The board can be powered directly using a DC 7–12V adapter via the onboard DC jack, which supplies stable power to the ESP32 Core module. An onboard power switch (DIP switch) allows easy control of the power supply during development.
Standard expansion headers on both sides make it easy for developers to connect sensors, modules, and peripherals without complicated wiring, providing a clean and organized development experience.
At its core, the board is powered by the ESP-WROOM-32 module, a highly integrated Wi-Fi + Bluetooth solution featuring low power consumption, excellent RF performance, and high reliability. It integrates RF components such as antenna switch, RF balun, power amplifier, low-noise amplifier, filters, and power management, making it suitable for a wide range of IoT and embedded applications.

Features
| Microcontroller Module | Based on ESP-WROOM-32 microcontroller module |
| Wireless Connectivity | Integrated 2.4 GHz Wi-Fi and Bluetooth 4.2 (BR/EDR + BLE) |
| Board Composition | Includes ESP32 Core Board and IO Expansion Board |
| Power Input | DC 7–12 V input via standard DC jack |
| Power Control | Onboard power control switch for easy power management |
| USB Interface | CP2102-GMR USB-to-Serial converter for programming and debugging |
| Expansion | Standard pin headers for easy peripheral connection |
| Performance | Low power consumption and stable RF performance |
| Typical Use Cases | Ideal for ESP32 learning, IoT prototyping, and product development |
Specifications
| Microcontroller | ESP-WROOM-32 |
| USB-to-Serial Chip | CP2102-GMR |
| Power Supply Voltage | DC 7–12 V |
| Working Current | 60 mA |
| Maximum Power | 0.3 W |
| Operating Temperature | –25°C to +65°C |
| Wi-Fi | |
|---|---|
| Wi-Fi Modes | Station / SoftAP / SoftAP + Station / P2P |
| Wi-Fi Protocol | IEEE 802.11 b/g/n/e/i |
| Max Data Rate | Up to 150 Mbps |
| Wi-Fi Frequency Range | 2.4 GHz – 2.5 GHz |
| Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 (BR/EDR + BLE) |
| Physical | |
| Dimensions | 67 × 50 × 19 mm |
| Weight | 32.8 g |
Applications
| IoT development and prototyping |
| Smart home projects |
| Wireless sensor nodes |
| Automation and control systems |
| ESP32 learning and education |

Package Contents
1 × ESP32 IO Expansion Board
Pre-mounted ESP32 Core Board
Original: $17.99
-70%$17.99
$5.40






Description
Keyes ESP32 Core Board Development Expansion Board
Equipped with WROOM-32 Module
This ESP32 Development Board Kit consists of a Keyes ESP32 Core Board combined with a Keyes ESP32-IO Expansion Board, designed to make ESP32 development, prototyping, and debugging simple and convenient.
The board can be powered directly using a DC 7–12V adapter via the onboard DC jack, which supplies stable power to the ESP32 Core module. An onboard power switch (DIP switch) allows easy control of the power supply during development.
Standard expansion headers on both sides make it easy for developers to connect sensors, modules, and peripherals without complicated wiring, providing a clean and organized development experience.
At its core, the board is powered by the ESP-WROOM-32 module, a highly integrated Wi-Fi + Bluetooth solution featuring low power consumption, excellent RF performance, and high reliability. It integrates RF components such as antenna switch, RF balun, power amplifier, low-noise amplifier, filters, and power management, making it suitable for a wide range of IoT and embedded applications.

Features
| Microcontroller Module | Based on ESP-WROOM-32 microcontroller module |
| Wireless Connectivity | Integrated 2.4 GHz Wi-Fi and Bluetooth 4.2 (BR/EDR + BLE) |
| Board Composition | Includes ESP32 Core Board and IO Expansion Board |
| Power Input | DC 7–12 V input via standard DC jack |
| Power Control | Onboard power control switch for easy power management |
| USB Interface | CP2102-GMR USB-to-Serial converter for programming and debugging |
| Expansion | Standard pin headers for easy peripheral connection |
| Performance | Low power consumption and stable RF performance |
| Typical Use Cases | Ideal for ESP32 learning, IoT prototyping, and product development |
Specifications
| Microcontroller | ESP-WROOM-32 |
| USB-to-Serial Chip | CP2102-GMR |
| Power Supply Voltage | DC 7–12 V |
| Working Current | 60 mA |
| Maximum Power | 0.3 W |
| Operating Temperature | –25°C to +65°C |
| Wi-Fi | |
|---|---|
| Wi-Fi Modes | Station / SoftAP / SoftAP + Station / P2P |
| Wi-Fi Protocol | IEEE 802.11 b/g/n/e/i |
| Max Data Rate | Up to 150 Mbps |
| Wi-Fi Frequency Range | 2.4 GHz – 2.5 GHz |
| Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 (BR/EDR + BLE) |
| Physical | |
| Dimensions | 67 × 50 × 19 mm |
| Weight | 32.8 g |
Applications
| IoT development and prototyping |
| Smart home projects |
| Wireless sensor nodes |
| Automation and control systems |
| ESP32 learning and education |

Package Contents
1 × ESP32 IO Expansion Board
Pre-mounted ESP32 Core Board























