M5Stack Unit Gateway H2 – A tiny ESP32-H2 Thread/Zigbee gateway selling for $6.50

M5Stack’s Unit Gateway H2 is a small Thread/Zigbee gateway powered by the ESP32-H2-MINI-1 module with an 802.15.4 radio for Zigbee 3.0, Thread 1.3, and Matter connectivity.

The Unit Gateway H2, also known as Gateway H2 Unit…, can operate as a gateway (e.g. a Thread Board Router) or a terminal device that communicates with a M5Stack device via serial/UART through the Grove interface.  It also features a USB-C port for power, firmware flash, and debugging. M5Stack says it’s suitable for smart homes, environmental monitoring, sensor networks, and low-power wireless communication nodes.

 

M5Stack Gateway H2 Unit specifications:

• Wireless module – ESP32-H2-MINI-1-N2
  • SoC – Espressif Systems ESP32-H2
    • CPU – 32-bit RISC-V SoC clocked at up to 96 MHz
    • RAM and storage – 320 KB SRAM, 128 KB ROM, 4 KB LP memory
    • Wireless – 802.15.4 radio with Zigbee 3.0, Thread 1.3, and Matter support. (Note: the ESP32-H2 also supports Bluetooth 5.2 LE/Mesh, but it’s not mentioned in this context)
  • Storage – 2MB flash storage
  • PCB antenna
  • Dimensions – 16.6 x 13.2 x 2.4 mm
• USB – 1x USB Type-C port for power, programming, and debugging
• Expansion – 4-pin Grove UART connector
• Misc – BOOT button
• Power Consumption (at 5V)
  • Active with Thread – 26.08mA
  • Standby – 16.16mA
  • Sleep – 92.7uA (when powered by Grove interface)
• Dimensions – 48 x 24 x 8mm
• Weight – 6.9 grams
• Temperature Range – 0 to 40°C

The Unit Gateway H2 ships with a 20cm Grove cable. Software development can be performed through the Arduino IDE, the ESP-IDF framework, and soon the UIFlow 2.0 visual programming platform. The documentation has Arduino examples for Zigbee and OpenThread communication, and ESP-IDF tutorials showing how to use the Gateway H2 as a Thread Border Router or a Zigbee gateway when coupled with CoreS3 controller, as well as a Zigbee Network Co-Processor (NCP).

M5Stack is selling the ESP32-H2-based Gateway H2 Unit for $6.50 on AliExpress and its own online store, Depending on the target application, you can also need an IoT controller like the M5Stack  CoreS3 SE or M5Stack ATOMS3 Lite.

Support CNX Software! Donate via cryptocurrencies, become a Patron on Patreon, or purchase goods on Amazon or Aliexpress