Introducing ESP32-H4: Advanced Low-Power SoC with 802.15.4 and Bluetooth 5.4

Espressif Systems introduces the ESP32-H4, expanding its 802.15.4 and Bluetooth LE portfolio. This next-generation SoC meets the growing demand for low-power wireless devices, offering significant upgrades in power consumption, connectivity features, and memory expansion. The ESP32-H4 advances Espressif's Bluetooth LE chips from Bluetooth 5.0 to Bluetooth 5.4.

The ESP32-H4 integrates essential connectivity technologies, including IEEE 802.15.4 and Bluetooth 5.4 (LE), supporting protocols like Thread 1.3, Zigbee 3.0, and Bluetooth Mesh 1.1. It features LE Audio, LE Isochronous Channels, Connection Subrating, Periodic Advertising with Responses (PAwR), and Direction Finding using Angle of Arrival (AoA) and Angle of Departure (AoD). These features enhance applications like audio streaming, precise location tracking, and bidirectional communication for retail and warehouse applications.


source: Espressif

Powered by a dual-core, 32-bit RISC-V microcontroller clocked up to 96 MHz, the ESP32-H4 includes 320KB of on-chip SRAM, 128KB of ROM, and supports external flash memory. It also supports up to 4MB of PSRAM for flexible memory management. Security features like secure boot, flash encryption, and cryptographic accelerators ensure the protection of private keys.

The ESP32-H4 is designed for low-power battery-operated devices, with an integrated DC-DC supply optimizing power consumption. Its capabilities make it ideal for wearables, healthcare devices, LE Audio devices, low-power sensors, and other IoT applications. It supports up to 35 GPIOs and standard peripherals, including I2C, I2S, SPI, UART, and USB-OTG, with specialized peripherals like the Event Task Matrix for automation tasks and 14 touch sensing GPIOs for HMI applications.

Backed by Espressif’s robust IoT Development Framework (ESP-IDF) and the ESP-Matter-SDK, the ESP32-H4 enables the development of battery-operated Matter-enabled products. For inquiries, contact Espressif’s customer support team.