Espressif · ESP32
ESP32-H2 DevKitM-1
A Wi-Fi-free ESP32 built purely for Thread, Zigbee and BLE — small, efficient, and made for battery-powered smart-home nodes.
BLEThread/Zigbee3.3 V logicBreadboard
Typical price
$9
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Specifications
| Maker | Espressif |
|---|---|
| Chip | ESP32-H2-MINI-1 |
| CPU | RISC-V single-core |
| Clock speed | 96 MHz |
| Wi-Fi | None |
| Bluetooth | Bluetooth 5.3 (LE) |
| Zigbee / Thread radio | Yes (802.15.4) |
| GPIO pins | 19 usable |
| ADC | 5 channels, 12-bit |
| DAC | None |
| Flash | 4 MB |
| RAM | 320 KB |
| Logic level | 3.3 V |
| Power input | 5V USB |
| Deep sleep (typ.) | ~7 µA |
| Active current (typ.) | ~40 mA |
| Form factor | Breadboard |
| USB | USB-C |
| Programming | ESP-IDF, Arduino, PlatformIO |
| Released | 2022 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- Zigbee / Thread / BLE 5.3 in one chip
- Low power with no Wi-Fi radio to feed
- Pairs well with an ESP32-C6 border router
Cons
- No Wi-Fi
- 96 MHz is slow for anything heavy
- Smaller ecosystem than other ESP32s
Best use cases
- 01Zigbee sensors and switches
- 02Thread end devices
- 03Battery-powered BLE nodes
- 04Matter-over-Thread prototypes
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