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The ESP32-H2 Mini Development Board is a compact, low-power IoT board built around the ESP32-H2FH4S chip, offering native support for BLE 5, Zigbee 3.0, and Thread wireless protocols .
| Parameter | Value | Notes |
|---|---|---|
| SoC | ESP32-H2FH4S (RISC-V 32-bit single-core) | Up to 96MHz clock speed |
| Wireless | BLE 5, Bluetooth Mesh, Zigbee 3.0, Thread | Also supports Matter |
| Flash | 4MB (built-in) | ESP32-H2FH4S variant has 4MB |
| SRAM | 320KB | From DigiKey product attributes |
| Wireless Sensitivity | -106.5 dBm | |
| Output Power | Up to 20dBm | |
| Operating Voltage | 3.0V ~ 3.6V | |
| Operating Temp | -40°C ~ 105°C | Industrial grade |
| USB | USB Type-C | For power and programming |
| Peripherals | SPI, I2C, I2S, UART, ADC, PWM, USB Serial/JTAG |
Espressif released ESP32-H2 v1.2 with significant security improvements. Products with the “S” suffix (like your ESP32-H2FH4S) include these features :
Power Glitch Detector – Protects against power-based attacks
Anti-Attack Pseudo-Round for AES/XTS-AES – Enhanced resistance to DPA/CPA attacks
Constant-Time/Power Mode for ECC/ECDSA – Stronger defence against side-channel analysis
Multi-Protocol Support: Simultaneously supports BLE, Zigbee, Thread, and Matter for smart home and industrial IoT
Compact Form Factor: Castellated module design allows direct soldering to carrier boards
Development Support: Compatible with ESP-IDF and Arduino IDE
Rich Peripherals: Includes SPI, UART, I2C, I2S, LED PWM, and ADC interfaces
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