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Board overview
ESP32-H2-DevKitM-1
Espressif · ESP32-H2
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Simplified technical illustration. Pin data is source-backed; verify against the linked documentation before wiring.
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Mapped source · ESP32-H2-DevKitM-1 user guideOfficial- Official Espressif header tables list these J1 and J3 pin names and functions.
- GPIO9 is the BOOT strap; holding Boot and pressing Reset enters firmware download mode.
- GPIO8 drives the onboard addressable RGB LED, and GPIO26/GPIO27 are the native USB D-/D+ pair.
- GPIO13/GPIO14 may be tied to the optional 32.768 kHz crystal population depending on board revision.
All 30 pins
| # | Signal | Role | Net | Also / notes |
|---|---|---|---|---|
| 1 | Power | 3V3 | ||
| 2 | System | |||
| 3 | SPI | SPI | FSPIQ | |
| 4 | ADC | FSPICS0 / ADC1_CH0 | ||
| 5 | ADC | FSPIWP / ADC1_CH1 / MTMS | ||
| 6 | ADC | FSPIHD / ADC1_CH2 / MTDO | ||
| 7 | Alt | XTAL_32K_P | ||
| 8 | Alt | XTAL_32K_N | ||
| 9 | ADC | FSPICLK / ADC1_CH3 / MTCK | ||
| 10 | ADC | FSPID / ADC1_CH4 / MTDI | ||
| 11 | Reserved | |||
| 12 | Power | VBAT | ||
| 13 | Ground | GND | ||
| 14 | Power | 5V | ||
| 15 | Ground | GND | ||
| 16 | Ground | GND | ||
| 17 | UART | UART | U0TXD / FSPICS2 | |
| 18 | UART | UART | U0RXD / FSPICS1 | |
| 19 | GPIO | ZCD0 | ||
| 20 | GPIO | ZCD1 | ||
| 21 | SPI | SPI | FSPICS3 | |
| 22 | GPIO | |||
| 23 | Alt | RGB LED / LOG | ||
| 24 | GPIO | |||
| 25 | Ground | GND | ||
| 26 | System | |||
| 27 | Ground | GND | ||
| 28 | Alt | |||
| 29 | Alt | |||
| 30 | Ground | GND |