The ESP32-C5-WROOM-1U is a high-performance wireless communication module manufactured by Espressif Systems. Built around the ESP32-C5 series SoC, this module features a 32-bit single-core RISC-V microprocessor operating at up to 240MHz. It supports dual-band 2.4GHz and 5GHz Wi-Fi 6 (IEEE 802.11ax), Bluetooth Low Energy (BLE), Zigbee 3.0, and Thread 1.4, making it a versatile connectivity solution for modern Internet of Things (IoT) applications.
The ESP32-C5-WROOM-1U supports dual-band Wi-Fi connectivity with a 1T1R antenna configuration and data rates of up to 150Mbps. Its Wi-Fi 6 technology incorporates features such as OFDMA, downlink MU-MIMO, beamforming, spatial reuse, and Target Wake Time (TWT), helping improve wireless network efficiency, connectivity, and power management in demanding IoT environments.
The module also supports Bluetooth Low Energy, with Bluetooth Core 6.0 certification, as well as Bluetooth Mesh 1.1. These capabilities enable flexible wireless communication, device networking, and low-power connectivity for smart home systems, industrial equipment, and connected consumer products.
In addition to Wi-Fi and Bluetooth, the ESP32-C5-WROOM-1U integrates IEEE 802.15.4 connectivity, supporting Zigbee 3.0 and Thread 1.4 protocols. This multi-protocol capability makes it suitable for smart home ecosystems, wireless sensor networks, and Matter-related connectivity applications.
At its core, the module integrates a 32-bit RISC-V single-core processor with a maximum operating frequency of 240MHz, 320KB ROM, 384KB high-performance SRAM, and 16KB low-power SRAM. Optional PSRAM configurations of up to 8MB are available, while SPI flash configurations can reach up to 32MB, depending on the specific ordering variant.
The ESP32-C5-WROOM-1U provides up to 22 GPIOs and a comprehensive set of peripheral interfaces, including UART, SPI, I2C, I2S, USB Serial/JTAG, CAN FD, ADC, LED PWM, and motor control PWM. These interfaces offer flexibility for integrating sensors, actuators, displays, communication interfaces, and other external hardware.
Unlike the ESP32-C5-WROOM-1 version, which features an onboard PCB antenna, the ESP32-C5-WROOM-1U is designed for external antenna connectivity. This configuration provides greater flexibility in antenna selection and placement, making it suitable for products requiring customized RF layouts and wireless coverage optimization.
The module operates with a supply voltage ranging from 3.0V to 3.6V and supports an ambient operating temperature range of -40°C to +85°C. Its compact dimensions of 18.0 × 21.2 × 3.3mm make it suitable for space-constrained PCB designs and automated electronic manufacturing.
The Espressif ESP32-C5-WROOM-1U is suitable for smart home devices, industrial automation, healthcare equipment, smart agriculture, POS terminals, service robots, audio devices, low-power IoT sensor hubs, data loggers, and wireless networking products.
Key Features:
- Manufacturer: Espressif Systems
- Part Number: ESP32-C5-WROOM-1U
- Product Type: Wireless Connectivity Module
- Main Chip: ESP32-C5
- Processor: 32-bit Single-Core RISC-V
- Maximum CPU Frequency: 240MHz
- Wi-Fi Standard: Wi-Fi 6 (IEEE 802.11ax)
- Wi-Fi Frequency: 2.4GHz / 5GHz Dual-Band
- Antenna Configuration: 1T1R
- Maximum Wi-Fi Data Rate: 150Mbps
- Bluetooth: Bluetooth Low Energy (BLE)
- Bluetooth Certification: Bluetooth Core 6.0
- Bluetooth Mesh: 1.1
- Wireless Protocol: IEEE 802.15.4
- Zigbee: Zigbee 3.0
- Thread: Thread 1.4
- SPI Flash: Up to 32MB, depending on variant
- PSRAM: Optional, up to 8MB
- GPIO: Up to 22
- Peripheral Interfaces: UART, SPI, I2C, I2S, USB Serial/JTAG, CAN FD, ADC, PWM
- Antenna Type: External Antenna Connection
- Supply Voltage: 3.0V to 3.6V
- Operating Temperature: -40°C to +85°C
- Module Dimensions: 18.0 × 21.2 × 3.3mm
- Mounting Type: PCB Surface Mount
- Environmental Compliance: RoHS / REACH
Typical Applications:
- Smart home devices
- Industrial automation
- Internet of Things (IoT) devices
- Wireless sensor networks
- Smart agriculture
- Healthcare equipment
- POS terminals
- Service robots
- Audio devices
- Low-power IoT sensor hubs
- IoT data loggers
- Wi-Fi and Bluetooth networking devices
- Zigbee and Thread-based smart home systems
- Consumer electronics
The Espressif ESP32-C5-WROOM-1U combines dual-band Wi-Fi 6, Bluetooth LE, Zigbee 3.0, and Thread 1.4 connectivity with a powerful 240MHz RISC-V processor in a compact wireless module. Its external antenna configuration, flexible peripheral interfaces, and optional memory configurations make it a practical connectivity solution for electronic manufacturers, IoT developers, hardware engineers, and procurement teams developing advanced wireless products.
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