ESP32-H2
SoCSpecifications
Radios
- Wi-Fi
- none
- Bluetooth LE
- BLE 5.3
- Bluetooth Classic
- no
- 802.15.4
- Thread 1.4, Zigbee 3.0, Matter
USB
- Native USB
- yes
- USB type
- serial-jtag
CPU
- Architecture
- risc-v
- Cores
- 1
- Max clock
- 96 MHz
Memory
- SRAM
- 320 KB
- LP SRAM
- 4 KB
- ROM
- 128 KB
Security
- Features
- ecc-secure-bootflash-encryption-aes-256-xtsecdsa-dshmaccrypto-accelerators
No Wi-Fi. A dedicated 802.15.4 (Thread / Zigbee / Matter) + BLE 5.3 endpoint chip for low-power mesh sensors.
Boards and modules on ESP32-H2 (2)
- BLE 5.3802.15.4 · Thread 1.4, Zigbee 3.0, MatterNative USBdevkit
- BLE 5.3802.15.4 · Thread 1.4, Zigbee 3.0, MatterNative USB
Frequently asked questions
What are the ESP32-H2 specs / datasheet?
ESP32-H2 is a single-core RISC-V SoC clocked up to 96 MHz. It has 320 KB of SRAM (4 KB in the LP domain) and 128 KB of ROM. Radios: no Wi-Fi radio, Bluetooth LE 5.3, and an 802.15.4 radio. It exposes native USB (Serial/JTAG).
What is the ESP32-H2 pinout / GPIO count?
The ESP32-H2 has 19 GPIO pads in total, of which 3 are strapping pins and 2 are tied to USB/flash.
What wireless radios does the ESP32-H2 have?
ESP32-H2's wireless radios: Wi-Fi: no Wi-Fi radio. Bluetooth: Bluetooth LE 5.3. 802.15.4: 802.15.4 radio (thread-1.4, zigbee-3.0, matter).
Does the ESP32-H2 have a low-power (LP) core?
No -- the ESP32-H2 has no separate low-power (LP) core; only its main CPU core (up to 96 MHz).
ESP32-H2 vs ESP32-H4: what's different?
The ESP32-H2 is a single-core RISC-V SoC at up to 96 MHz (320 KB SRAM); the ESP32-H4 is a dual-core RISC-V SoC at up to 96 MHz (384 KB SRAM). Wi-Fi: no Wi-Fi vs no Wi-Fi. Bluetooth: BLE 5.3 vs BLE 5.4. 802.15.4: 802.15.4 yes vs 802.15.4 yes. Low-power core: LP core no vs LP core no.
Notes
- No Wi-Fi radio — 802.15.4 + BLE only
- No in-package flash pins bonded out as GPIOs.
- Default drive strength: GPIO26/27 (USB) = 40 mA, others 20 mA.