Product description: Gateway H2 - communication module - ESP32-H2-MINI-1-N2 - ZigBee / Thread / Matter - Unit expansion module - M5Stack U195
The Unit Gateway H2 from M5Stack is a modern communication gateway module designed around the ESP32-H2-MINI-1-N2 chip. It enables connectivity in the ZigBee 3.0, Thread 1.3, and Matter (Thread-based) standards, relying on the IEEE 802.15.4 protocol. A built-in hardware encryption engine ensures high transmission security, and communication takes place via the UART (PORT.C) interface. The module can act as both a gateway (Thread Border Router) and an end device , and thanks to USB Type-C and Grove programming connectors, it is ready for quick implementation and integration.
Gateway H2 - communication module - ESP32-H2-MINI-1-N2 - ZigBee / Thread / Matter - Unit expansion module - M5Stack U195.
Unit Gateway H2 is built on the ESP32-H2-MINI-1-N2 system.
Main features of the Gateway H2 module
- ESP32-H2 (RISC-V 96 MHz) : 32-bit single-core processor optimized for IoT
- Support for ZigBee, Thread, and Matter : Next-Generation Protocols for Smart Grids
- UART communication via Grove (PORT.C) : fast integration with M5Stack controllers
- Hardware Encryption Engine : Hardware-level security
- Low power consumption : only 92.7 µA in sleep mode
- ESP-IDF and Arduino IDE support : a rich development environment
Pinouts and compatibility with M5Stack
The module communicates with the main unit via PORT.C (Grove) , using the UART interface (UART_RX and UART_TX). For the CoreS3 controller, port C is pins G17 (TX) and G18 (RX) . The module's pinout follows the typical Grove layout: GND (black), 5V (red), UART_RX (yellow), UART_TX (white) . Thanks to the standardized connector, the module also works with other M5Stack controllers (e.g. Core2 , Atom , StickC Plus ).
The module communicates with the M5 series host via serial port (UART) via the Grove interface.
Gateway H2 supports connection protocols ZigBee , Thread and Thread-based Matter.
Programming and integration
The module supports the Arduino IDE and ESP-IDF environments. It is designed for developing applications such as Thread Border Routers , ZigBee endpoints , and Matter communication nodes . M5Stack provides official guides, code examples, and schematics. Programming is possible via the UART port (using a USB-UART converter) or USB Type-C port (BOOT mode). Additionally, users have access to full SDK documentation.
Gateway H2 Technical Specifications
- SoC: ESP32-H2-MINI-1-N2 (RISC-V 32-bit, 96MHz)
- Flash memory: 2 MB
- Antenna: PCB antenna on board
- Protocol: IEEE 802.15.4 (ZigBee 3.0, Thread 1.3, Matter)
- Current consumption (operation): 5 V at 26.08 mA
- Current consumption (standby): 5 V at 16.16 mA
- Current consumption (sleep): 5V at 92.7µA
- Communication: UART (Grove, PORT.C)
- Programming connector: USB Type-C + 4-pin UART
- Operating temperature: 0°C to 40°C
- Dimensions: 48 x 24 x 8.0 mm
- Weight: 6.9 g
Contents of the set
- 1x Unit Gateway H2
- 1x Grove Cable (20cm)
The module comes with a Grove cable.
