company blog about Supply/Recycle Espressif ESP32-H4: Next-generation dual-core ultra-low-power SoC with Bluetooth 5.4 and 802.15.4

Supply/Recycle Espressif ESP32-H4: Next-generation dual-core ultra-low-power SoC with Bluetooth 5.4 and 802.15.4

Shenzhen Mingjiada Electronics Co., Ltd. specialises in one-stop supply of electronic components and high-value recycling services. We offer immediate stock and high-value buyback services for the Espressif (Eraspiff) ESP32-H4, a new-generation Bluetooth 5.4 (LE) + 802.15.4 dual-core ultra-low-power SoC. We provide a stable and reliable chip supply chain and inventory optimisation solutions for long-battery-life and diverse HMI applications in the Internet of Things (IoT), smart home, wearable devices and industrial control sectors.

I. Overview of the ESP32-H4

The ESP32-H4 is an advanced, low-power, dual-core 32-bit RISC-V SoC that integrates Bluetooth® 5.4 (LE) and IEEE 802.15.4 connectivity within a single chip. Designed for the next generation of battery-powered products, this chip combines robust security mechanisms, flexible memory support and high energy efficiency to meet the demands of more demanding low-power applications. The ESP32-H4 is suitable for scenarios such as wearable devices, wireless audio products, medical and health devices, and large-scale low-power sensor networks.

II. Key Highlights of the ESP32-H4: Low-Power Dual Connectivity, Enabling Long-Battery-Life HMIs​

The ESP32-H4 is an ultra-low-power dual-core RISC-V wireless SoC launched by Espressif, integrating both Bluetooth 5.4 (LE) and IEEE 802.15.4 wireless protocols. It is specifically designed for battery-powered, low-latency, long-battery-life smart interactive devices, with the following core advantages:

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Wireless Connectivity Performance and Bluetooth 5.4 (LE)

The ESP32-H4 integrates both Bluetooth 5.4 (LE) and IEEE 802.15.4 within a single SoC, fully supporting all features of the Bluetooth 5.4 (LE) core specification and having achieved Bluetooth 6.0 certification. The Bluetooth subsystem supports advanced Bluetooth features such as Bluetooth Low Energy Audio (LE Audio, Isochronous Channels, BIS/CIS), LE Connection Subrating, Periodic Broadcasts with Reply (PAwR), and Bluetooth Direction Finding (AoA/AoD) based on angle of arrival and angle of departure. These features facilitate the development of low-power audio products, indoor positioning solutions, and large-scale beacon and sensor deployments. The 802.15.4 subsystem supports Thread 1.4 and Zigbee 3.0, enabling Matter-over-Thread and mesh-based applications.

Low-power design with integrated DC-DC converter

The ESP32-H4 is designed for ultra-low-power applications; its integrated DC-DC converter reduces the supply voltage and improves power regulation efficiency, thereby enhancing overall energy efficiency. Furthermore, the ESP32-H4 supports multiple low-power modes and allows users to select which peripherals to enable, enabling extended operation even when using micro-batteries such as button cells or rechargeable batteries. The ESP32-H4 further reduces maximum transmit power, helping to minimise RF current consumption. It has also been optimised for Bluetooth (LE), for example by supporting periodic broadcast packet transmission without CPU involvement. Consequently, the ESP32-H4 is particularly well-suited for battery-powered sensors, wearable devices, low-power Bluetooth audio accessories and Matter-over-Thread devices.

Peripheral Optimisation and Human-Machine Interaction

The ESP32-H4 provides up to 40 GPIO pins, covering not only common peripheral interfaces such as I2C, I2S, SPI, UART, LED-PWM, ADC, timers, DMA, TWAI, USB-OTG and MCPWM, but also an Event Task Matrix (ETM) dedicated to automatically triggering tasks. The ESP32-H4 also integrates 15 touch-sensing GPIOs, making it ideal for human-machine interaction devices such as touch panels, smart switches and rotary controllers.

System and Storage

The ESP32-H4 is equipped with a 32-bit dual-core RISC-V microprocessor, operating at a maximum clock speed of 96 MHz, and features an integrated DSP extension unit. The chip features 384 KB of SRAM and 128 KB of ROM, and supports external memory. The ESP32-H4 also introduces support for external PSRAM, enabling developers to run memory-intensive applications such as Bluetooth Low Energy audio buffering, complex protocol stacks, data logging, or sensor fusion. This memory expansion simplifies the application development process and provides scope for future functional upgrades.

Cost-effective security mechanisms

The ESP32-H4 integrates secure boot, memory encryption, a true random number generator and other hardware cryptographic accelerators, whilst also supporting ECDSA-based digital signature peripherals. These hardware security features protect private keys and sensitive data, ensuring secure communications and firmware integrity. They enable data security to be easily implemented even in cost-sensitive designs, helping developers meet modern IoT security requirements.

III. Comprehensive Application Scenarios for the ESP32-H4, Driving Product Innovation

Thanks to its low power consumption, dual connectivity and HMI compatibility, the ESP32-H4 is widely used in:

Smart Home: Smart switches, thermostat panels, curtain controllers, voice-activated devices;​

Wearables: Fitness trackers, smartwatches, portable monitors;​

Industrial IoT: Low-power sensors, industrial HMI terminals, Mesh networking devices;​

Consumer Electronics: Bluetooth remotes, smart toys, portable interactive devices.​

IV. Mingjiada Electronics: Comprehensive ESP32-H4 Supply and Recycling Services​

As a reputable service provider with years of experience in the electronic components industry, Mingjiada Electronics offers a dual-service solution for the ESP32-H4, comprising genuine stock supply and high-value recycling, addressing customers’ procurement and inventory challenges:​

1. Genuine stock supply, ensuring stable delivery​

Legitimate channels: All ESP32-H4 chips are genuine, sourced directly from the manufacturer, eliminating refurbished or loose new stock, with traceable quality;​

Immediate Dispatch: We maintain ample stock, supporting both small-batch samples and large-scale procurement, and respond swiftly to R&D prototyping and mass production requirements;​

Technical Support: We provide technical documentation such as chip datasheets and application guides to assist customers in rapidly developing long-battery-life HMI products.​

2. High-Value Stock Buyback to Revitalise Idle Assets​

Recycling of All Models: We purchase ESP32-H4 chips at premium prices, including brand-new factory-sealed stock, factory surplus inventory, project leftovers, and undamaged, factory-sealed components salvaged from disassembled devices;​

Efficient Settlement: Our professional appraisal team provides rapid quotations and cash settlement through a straightforward process, helping businesses clear inventory and recover capital;​

Environmental Compliance: We strictly adhere to electronic component recycling standards to facilitate resource recycling, helping businesses reduce costs and improve efficiency.​

V. Key Advantages of Choosing Mingjiada Electronics​

Specialised Expertise: Deeply rooted in the IoT chip and wireless SoC sectors, with comprehensive knowledge of the full range of ESP32 series models, ensuring precise service;​

Integrity in Business: Guaranteed genuine products, high-value buyback, transparent pricing, and swift transactions; our reputation is trustworthy;​

Nationwide Service: Covering Shenzhen and multiple locations across the country, with support for on-site collection and logistics dispatch, ensuring efficiency and convenience.​

Shenzhen Mingjiada Electronics Co., Ltd. focuses on stable supply, high-value buyback and professional service, providing customers with full lifecycle solutions for the Espressif ESP32-H4 dual-core ultra-low-power SoC, facilitating the rapid deployment of long-battery-life and diverse HMI application products. We welcome enquiries from both new and existing customers regarding procurement and discussions on stock buyback partnerships!