Waveshare ESP32-H2-Zero
Ultra-compact castellated ESP32-H2 development board with BLE 5.2, Zigbee 3.0, Thread 1.3, and Matter support. USB-C powered with WS2812 RGB LED, 15 GPIO pins, and 4MB flash in a tiny 23.5 x 15.2mm form factor.
$3.49
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Specifications
Components
ESP32-H2FH4S RISC-V single-core @ 96MHz with 320KB SRAM, 4MB flash, BLE 5.2, IEEE 802.15.4 (Zigbee/Thread)
WS2812 addressable RGB LED for status indication and visual feedback
Microne ME6217C33M5G LDO providing 3.3V at up to 800mA from 5V USB input
Bus Interfaces
GPIO Map
Overview
The Waveshare ESP32-H2-Zero is an ultra-compact development board built around the ESP32-H2FH4S RISC-V SoC. Measuring just 23.5 x 15.2mm with castellated edges, it is designed for direct soldering onto carrier boards or use as a standalone prototyping platform via its USB-C port.
The ESP32-H2 is Espressif's dedicated IEEE 802.15.4 and BLE chip, making this board ideal for Zigbee 3.0, Thread 1.3, and Matter smart home applications. Unlike WiFi-equipped ESP32 variants, the H2 focuses entirely on low-power mesh networking protocols, making it a natural fit for battery-powered sensor nodes and smart home coordinators.
The board exposes up to 15 GPIO pins across two 9-pin headers with 5 ADC channels, SPI, UART, I2C, and JTAG interfaces. An onboard WS2812 addressable RGB LED provides visual feedback for development. The ME6217C33M5G LDO regulator supplies stable 3.3V power from the USB-C 5V input.
Use Cases
6Zigbee Gateway
Serves as a Zigbee coordinator/gateway, connecting Zigbee 3.0 end-devices to home automation systems and IP networks.
Thread Border Router
Acts as a Thread border router, bridging IEEE 802.15.4 Thread mesh networks to IP networks (WiFi or Ethernet) for Matter and Thread device connectivity.
BLE Sensor Node
Bluetooth Low Energy sensor node for collecting and transmitting environmental, proximity, or asset data wirelessly.
Smart Home
Home automation devices for controlling lighting, climate, security, and appliances.
IoT Prototyping
General-purpose IoT development board suitable for rapid prototyping of connected devices, sensor nodes, and wireless applications.
Battery Powered Sensor Node
Low-power sensor nodes running on battery for wireless data collection and monitoring.
Resources
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