company blog about Mingjiada Electronics Supply/Recycle Espressif ESP32-C61-WROOM-1U-H16R2 Wi-Fi 6 + Bluetooth 5 Dual-Mode Wireless Module

Mingjiada Electronics Supply/Recycle Espressif ESP32-C61-WROOM-1U-H16R2 Wi-Fi 6 + Bluetooth 5 Dual-Mode Wireless Module

Shenzhen Mingjiada Electronics Co., Ltd. — offers genuine, in-stock Espressif ESP32-C61-WROOM-1U-H16R2 Wi-Fi 6 + Bluetooth 5 dual-mode wireless modules to customers worldwide, We also offer long-term, high-value buyback services for the full range of Espressif chips and various electronic component stock. Through our ‘Supply + Buyback’ dual-drive model, we help businesses efficiently utilise their assets and optimise supply chain management.

I. Product Overview: A Universal Wireless Module for the Wi-Fi 6 Era
The ESP32-C61-WROOM-1U-H16R2 is a 2.4 GHz Wi-Fi 6 + Bluetooth 5 (LE) dual-mode wireless module designed based on Espressif’s ESP32-C61 series chips. The module features a RISC-V 32-bit single-core processor with a maximum clock speed of 160 MHz, delivering robust computing power whilst maintaining extremely low power consumption. Compared to the previous-generation ESP32-C3 series, it demonstrates superior performance when handling AI algorithms and complex protocol stacks.
The ESP32-C61-WROOM-1U-H16R2 module utilises an SMD surface-mount package, measuring 18.0 × 25.5 × 3.2 mm. It operates within a voltage range of 3.0 V to 3.6 V and supports an industrial-grade temperature range of -40°C to +85°C, ensuring excellent environmental adaptability.

II. Key Specifications
Model: ESP32-C61-WROOM-1U-H16R2
Product Series: ESP32-C61 WROOM Series
Core Processor: 32-bit RISC-V single-core (RV32IMAC), maximum clock speed 160 MHz
SoC Chip: ESP32-C61 (32-bit RISC-V single-core, 160 MHz)
Wireless Protocols: 2.4 GHz Wi-Fi 6 (802.11 ax/b/g/n), Bluetooth 5 (LE)
Flash memory: 16 MB (Quad SPI)
PSRAM: 2 MB
SRAM / ROM: 320 KB SRAM, 256 KB ROM
Number of GPIO pins: Up to 23 (depending on specific configuration)
Antenna Interface: U.FL external antenna interface
Operating Voltage: 3.0 V to 3.6 V (typical 3.3 V)
Operating Temperature: -40°C to +85°C (industrial grade)
Package Dimensions: 18.0 × 25.5 × 3.2 mm (SMD surface-mount package)

III. Analysis of Key Features
3.1 Core Wi-Fi 6 Connectivity Capabilities
The ESP32-C61-WROOM-1U-H16R2 supports a complete 2.4 GHz Wi-Fi 6 (802.11ax) protocol stack, integrating core features such as OFDMA, MU-MIMO and TWT (Target Wake Time).
3.2 RISC-V Open Architecture and Scalability
The ESP32-C61-WROOM-1U-H16R2 module is built on a processor core based on the RISC-V open-source instruction set (RV32IMAC), operating at a clock speed of 160 MHz, and integrates 320 KB of SRAM and 256 KB of ROM.
3.3 Bluetooth 5 (LE) Long-Range and Mesh Networking
The Bluetooth 5 (LE) stack integrated into the ESP32-C61-WROOM-1U-H16R2 supports Advertising Extensions, Coded PHY (long-range coded physical layer) and 2 Mbps PHY (high-speed mode). The Coded PHY extends the effective transmission range fourfold through coding gains, making it suitable for sensor deployment scenarios requiring communication across large physical spaces; the 2 Mbps PHY, meanwhile, provides higher throughput for high-speed data transmission scenarios. Furthermore, the module fully supports the Bluetooth Mesh 1.1 standard, offering a standardised, low-power wireless mesh networking solution for multi-device networking applications.
3.4 Comprehensive Peripheral Interfaces
The ESP32-C61-WROOM-1U-H16R2 offers a standardised combination of peripheral interfaces, including I2C, I2S, SPI, UART, LED-PWM and ADC.
3.6 Industrial-Grade Operating Range
The ESP32-C61-WROOM-1U-H16R2 module operates within a temperature range of -40°C to +85°C (some sources indicate a range of -40°C to 105°C). The Wi-Fi transmit power reaches up to 20 dBm (11b), with BLE transmission power also at 20 dBm. Combined with the U.FL external antenna interface, RF signals can be flexibly routed to adapt to various complex signal propagation environments.

IV. Typical Application Scenarios
Thanks to its high-performance Wi-Fi 6 connectivity, large storage capacity and industrial-grade operating range, the ESP32-C61-WROOM-1U-H16R2 has been widely adopted across multiple vertical sectors:
Smart Home Control Centres: The storage configuration of 16MB flash memory + 2MB PSRAM supports complex UI rendering tasks (such as graphical touch interfaces) and a complete network protocol stack, making it a suitable choice for smart home control panels, home gateways and voice assistant terminals.
Industrial Human-Machine Interfaces (HMI): Scenarios such as industrial handheld terminals, medical device control panels and shop floor data acquisition terminals place high demands on system stability and real-time performance. The ESP32-C61’s industrial-grade temperature range and Wi-Fi 6’s low-latency transmission capabilities are well-suited to meeting these requirements.
High-density commercial lighting and sensor networks: Wi-Fi 6 OFDMA technology enables a single access point (AP) to communicate efficiently with hundreds of Wi-Fi 6 devices simultaneously. In commercial lighting systems and large-scale sensor networks, OFDMA can be utilised to achieve low-latency batch control and data backhaul.
Edge computing nodes: The 160 MHz RISC-V processor and 2MB PSRAM provide ample computing power for lightweight edge inference and local data pre-processing, making it suitable for performing preliminary data processing and filtering tasks at IoT edge nodes.

V. Mingjiada Electronics: One-Stop Supply + Recycling Services
As a specialist service provider with deep expertise in the electronic components sector, Mingjiada Electronics has long supplied the Espressif ESP32-C61-WROOM-1U-H16R2 Wi-Fi 6 + Bluetooth 5 dual-mode wireless module, whilst also offering a recycling service for surplus modules, providing a one-stop solution for the supply and disposal needs of purchasers and engineers.

For enquiries regarding the Espressif ESP32-C61-WROOM-1U-H16R2 product pricing, stock availability, technical specifications, or to enquire about recycling prices for surplus modules, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further details on supply and demand.