49 lines
1.7 KiB
Markdown
49 lines
1.7 KiB
Markdown
# ESP32-H2 Specifications
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> **芯片：esp32-h2** | **类别：specs** | **信源：** [Espressif 官方文档](https://docs.espressif.com)
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## 1. Core Architecture
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- **CPU:** Single-core RISC-V, 96 MHz（303.38 CoreMark）— 全系列最低主频.
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- **Wireless:** BLE 5.3, Zigbee/Thread (802.15.4). **Note: No Wi-Fi support.**
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- **Application:** Smart home devices, Matter over Thread, low-power sensors — 超低功耗传感器节点.
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## 2. Memory
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- **SRAM:** 320 KB internal.
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- **LP Memory:** 4 KB.
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- **ROM:** 128 KB.
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- **内置 Flash:** 2 MB 或 4 MB QSPI.
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## 3. Peripheral Mapping
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- **GPIO Count:** 芯片 19 个，模组 WROOM-02C 19 个 / WROOM-07 仅 3 个.
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- **ADC:** 5 channels, 12-bit（GPIO1–5）.
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- **DAC:** **None.**
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- **Touch:** **None.**
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- **Hardware PWM:** LEDC 6ch + MCPWM.
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- **UART:** 2 controllers.
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- **I2C:** 2 controllers.
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- **SPI:** 3 controllers.
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- **I2S:** 1 controller.
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- **CAN (TWAI):** 1 controller.
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- **USB Serial/JTAG:** 1.
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- **PARLIO:** 1.
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## 4. Hardware Safety & Constraints
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- **No Wi-Fi:** 这是 H2 与 C6 最大的区别。需要 WiFi+Thread → 选 C6.
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- **Strapping Pins:** GPIO8, GPIO9, GPIO25.
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- **LP GPIO:** GPIO8–14 可在 Deep-sleep 下保持功能.
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- **数字 GPIO:** GPIO0–5, GPIO22–27 只能在 Light-sleep 唤醒，不能在 Deep-sleep 唤醒.
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- **功耗极低:** BLE + 802.15.4 TX 峰值 ~60 mA, Deep-sleep ~7 µA.
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- **供电:** 3.0–3.6V, 推荐 3.3V.
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- **工作温度:** −40°C ~ +105°C.
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- **封装:** QFN32 (4×4mm).
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## 5. 无线协议
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- Bluetooth 5.3 LE, Mesh, Coded PHY (125/500 Kbps), 2 Mbps
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- Thread 1.4
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- Zigbee 3.0
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- Matter
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- 802.15.4 RX Sensitivity: -102.5 dBm (250 Kbps)
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## 6. 模组选型注意
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- WROOM-02C：GPIO 数=19, 天线=PCB, Flash=2/4 MB
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- WROOM-07：GPIO 数=**仅 3 个**, 天线=外置, Flash=2/4 MB
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