ESP32-H2 SuperMini Development Board - RISC-V Bluetooth 5.2 & IEEE 802.15.4 USB-C Board

Specifications

• Microcontroller: Espressif ESP32-H2 32-bit RISC-V single-core processor (up to 96 MHz)
• Wireless Connectivity: IEEE 802.15.4 (Zigbee 3.0, Thread, and Matter native protocol support)
• Bluetooth 5.2 (LE) with Long Range and coded PHY support
• On-Board Memory: 320 KB SRAM, 128 KB ROM, 4 KB LP SRAM
• Flash Memory: 4 MB integrated SPI Flash
• Form Factor: SuperMini ultra-compact footprint with castellated holes for surface mounting
• USB Interface: USB Type-C connector with integrated USB Serial / JTAG Controller
• Power Supply Options: 5V via USB Type-C or 3.3V via VCC/3V3 headers (3.3V LDO
• regulator on board)
• Peripherals & I/O:
• Up to 19x GPIOs (multiplexed with ADC, PWM, SPI, UART, I2C, I2S)
• 12-bit ADC converter
• Integrated Temperature Sensor
• User Interface: Boot Button, Reset Button, On-board Addressable RGB LED / Status Indicator
• Antenna: High-efficiency ceramic chip antenna
• Dimensions: ~22.5 mm x ~18.0 mm (Breadboard-friendly pitch)

Applications

• Smart Home Automation: Native Matter end-devices, Thread border router endpoints, and custom Home Assistant sensors.
• Industrial & Mesh Networks: Low-power Zigbee 3.0 wireless sensor networks for temperature, humidity, and structural monitoring.
• Wearables & Healthcare: Ultra-compact BLE 5.2 telemetry trackers and indoor positioning beacons.

Unlock New Capabilities

• Where You Started (Past Projects): If you've built basic projects using standard ESP8266 or ESP32-WROOM boards over standard Wi-Fi, you've likely hit power-consumption walls or struggle to connect directly with native Zigbee / Thread smart home hubs without bridging.
• What This Unlocks (Feature Upgrade): The ESP32-H2 SuperMini upgrades your setup to native Matter and Zigbee 3.0 protocols without needing external RF transceivers like CC2531 or NRF24L01. It drops idle power consumption drastically, allowing true battery-operated smart home nodes while keeping a micro-form factor that fits inside light switches and wall junction boxes.
• Effort & Requirements: Intermediate Level. Requires familiarity with Arduino IDE (ESP32 core 3.x+) or Espressif ESP-IDF. Minimum requirements: USB Type-C cable, 5V power supply or battery setup, and a Zigbee/Thread coordinator (such as Home Assistant Yellow or Sonoff Zigbee Dongle).

Package Includes:

• 1 x ESP32-H2 SuperMini Development Board - RISC-V Bluetooth 5.2 & IEEE 802.15.4 USB-C Board

Frequently Asked Questions (FAQ)

• What is the primary difference between ESP32-C3/C6 and ESP32-H2?
  The ESP32-H2 replaces standard Wi-Fi with IEEE 802.15.4 radios (Zigbee 3.0 and Thread) alongside BLE 5.2, making it specifically optimized for low-power Matter and Zigbee networks.
• Does the ESP32-H2 SuperMini support Wi-Fi?
  No, the ESP32-H2 does not have Wi-Fi. It uses Bluetooth 5.2 (LE) and IEEE 802.15.4 (Zigbee / Thread).
• Can I program this board using the Arduino IDE?
  Yes, support for ESP32-H2 is included in Espressif's official Arduino ESP32 core version 3.0.0 and above.
• Is this board compatible with the Matter smart home standard?
  Yes, the ESP32-H2 natively supports Matter over Thread and Matter over BLE commissioning.
• How do I put the ESP32-H2 SuperMini into Download / Bootloader mode?
  Hold down the BOOT button, press and release the RESET button, then release the BOOT button.
• What is the operating logic voltage for the GPIO pins?
  All GPIO pins operate strictly at 3.3V logic. Use a level shifter if interfacing with 5V sensors.
• How is the ESP32-H2 SuperMini powered?
  It can be powered via the USB Type-C port (5V) or directly through the 5V and GND header pins.
• Can I run Home Assistant native Zigbee devices with this?
  Yes, you can flash Zigbee End-Device firmware or use Zigbee2MQTT / ZHA compatible code.
• Does the board come pre-soldered with pin headers?
  Headers are supplied in the package but are usually unsoldered, allowing you to solder them or surface-mount the board via castellated pads.
• What CPU architecture does the ESP32-H2 use?
  It uses a 32-bit single-core RISC-V processor running up to 96 MHz.
• How much Flash memory is on the ESP32-H2 SuperMini?
  This board features 4 MB of integrated SPI Flash memory.
• Can I use this board as a Thread Border Router?
  While it can act as a Thread node or RCP (Radio Co-Processor), standard Thread Border Routers typically require a Wi-Fi or Ethernet SoC like the ESP32-S3 paired with ESP32-H2.
• What is the Bluetooth version supported?
  It supports Bluetooth 5.2 Low Energy (LE) with mesh and coded PHY support.
• Is ESP-IDF supported on the ESP32-H2?
  Yes, full support is available in ESP-IDF v5.0 and later releases.
• What USB bridge chip does this board use?
  It uses the ESP32-H2’s built-in USB Serial/JTAG controller directly via the USB Type-C port.
• How do I control the on-board LED?
  The built-in status RGB LED is wired to GPIO8 and can be controlled using standard WS2812/NeoPixel or GPIO commands depending on board rev.
• Can I power this directly with a 3.7V LiPo battery?
  You can feed regulated 3.3V to the 3V3 pin or use a step-up/step-down regulator connected to the 5V input pin.