ESP32-C3-WROOM-02U
ESP32-C3-WROOM-02U is a Wi-Fi + Bluetooth LE MCU module with a single-core CPU, rich peripherals, and U.FL connector for external antenna. Ideal for smart homes, industrial automation, healthcare, and consumer electronics.
18 × 14.3 mm
4MB
Flash
None
PSRAM
19
GPIO pins
18×14.3mm
Size
Specifications
Datasheet ↗Module
FamilyWROOM
Embedded chipESP32-C3
GPIO pins19
AntennaIPEX antenna connector
Dev boardESP32-C3-DevKitC-02
Operating temp-40°C ~ 85°C
Dimensions18 × 14.3 × 3.2 mm
Memory
Flash4 MB
PSRAMNone
Connectivity
Wi-Fi802.11 b/g/n (2.4 GHz)
Bluetooth5.0
BLE5.0
Module variants
2 variantsBase lowest-cost config Top highest spec High-temp extended temperature range
| Variant | Flash | PSRAM | Tags |
|---|---|---|---|
| ESP32-C3-WROOM-02U-N4 | 4 MB | - | Base |
| ESP32-C3-WROOM-02U-H4 | 4 MB | - | Top High-temp |
About the ESP32-C3-WROOM-02U
ESP32-C3-WROOM-02U is a Wi-Fi + Bluetooth LE module based on ESP32-C3, featuring an IPEX antenna connector for flexible placement in smart home and industrial applications.
- Size: 18 x 14.3 x 3.2 mm
- 2.4 GHz Wi-Fi and Bluetooth LE
- Rich set of peripherals
- Wide operating temperature range: -40°C ~ 85°C
- IPEX antenna connector for external antennas
- Ideal for smart home, industrial, and consumer electronics
The ESP32-C3-WROOM-02U module comes in two variants:
- ESP32-C3-WROOM-02U-N4: This is the basic variant with 4MB of flash memory, suitable for most applications.
- ESP32-C3-WROOM-02U-H4: This variant features 4MB of flash memory and is designed for high-temperature environments, making it ideal for industrial applications.
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