Introduction: As the Internet of Things (IoT) enters the Wi-Fi 6 era, Espressif Systems’ new generation of RISC-V architecture SoCs—the ESP32-C61 series—has entered full-scale mass production. As the flagship general-purpose module in this series, the ESP32-C61-WROOM-1U is rapidly becoming the top choice for smart home and industrial IoT upgrades thanks to its outstanding RF performance and cost advantages. Shenzhen Mingjiada Electronics Co., Ltd. (hereinafter referred to as “Mingjiada Electronics”) hereby announces that it has secured ample stock of this series of modules and is now accepting sample requests and providing bulk supply to global customers. Concurrently, the company has launched a service to purchase Espressif’s entire range of obsolete and idle inventory at competitive prices.
I. Ushering in the New Era of Wi-Fi 6 IoT: Technical Analysis of the ESP32-C61-WROOM-1U
The ESP32-C61-WROOM-1U is a high-performance, low-power dual-mode wireless module designed based on the Espressif ESP32-C61 series chip. It is not only a comprehensive upgrade over the previous-generation ESP32-C3 but also a key piece in filling the gap in the low-cost Wi-Fi 6 market.
1. Core Architecture: Enhanced Pure RISC-V Computing Power
The module features a 32-bit single-core RISC-V processor with a clock speed of up to 160 MHz. Compared to traditional architectures, RISC-V delivers powerful computing capabilities while offering exceptional flexibility and energy efficiency. With 256 KB of ROM and 320 KB of SRAM, it can easily handle complex connectivity protocol stacks.
2. Wireless Connectivity: Full Support for Wi-Fi 6
As the first module in the C series to support Wi-Fi 6 (802.11ax standard), the ESP32-C61-WROOM-1U excels in high-density connectivity scenarios. It supports OFDMA and MU-MIMO technologies, significantly reducing latency when multiple devices are connected simultaneously; it also incorporates the TWT (Target Wake Time) mechanism, greatly extending the battery life of battery-powered devices, and is backward compatible with the 802.11 b/g/n protocols on the 2.4 GHz band.
3. Diverse Memory Configurations (Selection Guide)
The model suffix denotes different memory combinations, catering to needs ranging from simple sensing to complex edge computing. Mingjiada Electronics currently promotes the following models:
ESP32-C61-WROOM-1U-N8R2: 8MB Flash + 2MB PSRAM, suitable for lightweight sensors and connectivity nodes.
ESP32-C61-WROOM-1U-N8R8: 8MB Flash + 8MB PSRAM, designed specifically for AIoT applications requiring complex web interfaces or larger data buffers.
ESP32-C61-WROOM-1U-H16R2: 16MB Flash + 2MB PSRAM, tailored for audio or offline voice scenarios requiring large-capacity storage for code and assets.
4. Peripherals and Antenna Design
This module supports up to 23 programmable GPIOs, offers a rich array of interfaces (SPI/I2C/UART/I2S/PWM, etc.), and integrates a 12-bit ADC. Notably, the “1U” suffix indicates that the module uses an IPEX/U.FL connector and requires an external antenna, providing greater flexibility for industrial environments with metal enclosures or signal constraints.
II. Supply Services: Mingjiada Electronics Stock Availability Support
Shenzhen Mingjiada Electronics Co., Ltd. has been deeply involved in the electronic components industry for many years and holds ISO 9001 international quality standard certification. For the ESP32-C61-WROOM-1U series, Mingjiada Electronics provides comprehensive supply chain services:
In-Stock Delivery: Our warehouses in Shenzhen and Hong Kong maintain a large inventory of brand-new, factory-sealed products, enabling rapid shipment for both R&D samples and mass production.
Shortage Management: To address fluctuations in original manufacturer lead times, Mingjiada leverages its robust global procurement network to resolve component shortages for customers, ensuring uninterrupted production lines.
One-Stop BOM Procurement Service: In addition to the main WiFi modules, Mingjiada can simultaneously provide power management ICs, memory chips, and various passive components, reducing procurement costs for customers.
III. Buyback Service: High-Priced Buyback of Espressif Series and Various Obsolete Inventory
As technology evolves rapidly, companies often face the challenges of excess inventory or the disposal of obsolete components. Leveraging its global sales network (covering China, Southeast Asia, Europe, the Americas, and Russia), Mingjiada Electronics has launched a specialized buyback service:
We are currently offering high prices for the following categories, including but not limited to:
Full Espressif Series: ESP32-C61 series, ESP32-C6 series, ESP32-S3, ESP32-C3, as well as older models such as the ESP8266, including excess inventory and discontinued items.
Various Communication Chips: 5G communication chips (Qualcomm, MediaTek, Unisoc), WiFi/BT modules.
Automotive and industrial-grade ICs: Automotive-grade chips from brands such as Infineon, NXP, and TI, as well as FPGAs (Xilinx, Altera).
Benefits of Our Buyback Program:
Cash Transactions: We provide quick quotes upon confirmation of your inventory list and settle payments in cash to help free up your cash flow.
Environmental Compliance: We offer professional eco-friendly disposal solutions for electronic components, ensuring the protection of your data security and intellectual property.
IV. Contact Us
If you have immediate demand for ESP32-C61-WROOM-1U series modules or need to dispose of excess factory inventory, please contact Shenzhen Mingjiada Electronics Co., Ltd.
Contact: Mr. Chen / Ms. Zhong
Hotline: +86 13410018555 / 0755-83957301
Email: sales@hkmjd.com
Address: Rooms 1239-1241, Tower B, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province
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