# ESP32-C6 SuperMini Dev Board

> The ESP32-C6 SuperMini is a stamp-size generic board built on the ESP32-C6FH4. It has a 160 MHz RISC-V core plus an LP core, 4 MB flash, 512 KB + 16 KB SRAM, Wi-Fi 6, Bluetooth 5.3 LE and 802.15.4 for Zigbee / Thread. USB-C goes to native USB Serial/JTAG. It breaks out 22 GPIO (7 ADC) and has BOOT and RESET buttons, a WS2812 on GPIO8, an LED on GPIO15 and 3.3 V logic, for about $7.

- Manufacturer: Generic (unbranded)
- Part number: ESP32-C6 SuperMini
- Category: Development boards
- Canonical page: https://www.xirkit.io/products/generic-esp32-c6-supermini-dev-board-0cc1
- Pinout: https://www.xirkit.io/products/generic-esp32-c6-supermini-dev-board-0cc1/pinout
- Structured JSON: https://www.xirkit.io/products/generic-esp32-c6-supermini-dev-board-0cc1/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Main chip | ESP32-C6FH4 |
| Chips on board | ESP32-C6FH4 |
| Exposed GPIO | 22 |
| Documented board pins | 26 |
| I/O voltage | 3.3 V |
| Supply voltage | 3.3–6 V |
| Flash | 4,096 KB |
| SRAM | 512 KB |
| Interfaces | uart, gpio, spi, clock, adc, jtag, led, control, usb, sdio, i2c |
| Frameworks | Arduino IDE, ESP-IDF, ESPHome |
| Dimensions | 25.56 × 18 mm |
| Operating temperature | -40 to 85 °C |

## Pinout (26 pins, 22 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| BAT | back pad beside USB-C (B+ / B−) | power in | — | power_in | — | — | — | — | — | — | — |
| 5V | R1 | power in | — | power_in | — | — | — | — | — | — | — |
| GND | R2 | ground | — | ground | — | — | — | — | — | — | — |
| 3V3 | R3 | power out | — | power_out | — | — | — | — | — | — | — |
| 16 | L1 | gpio | GPIO16 | TX (UART0), GPIO16, U0TXD, FSPICS0 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 17 | L2 | gpio | GPIO17 | RX (UART0), GPIO17, U0RXD, FSPICS1 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 0 | L3 | gpio | GPIO0 | XTAL_32K_P, ADC1_CH0, GPIO0 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 1 | L4 | gpio | GPIO1 | XTAL_32K_N, ADC1_CH1, GPIO1 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 2 | L5 | gpio | GPIO2 | ADC1_CH2, GPIO2, FSPIQ | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 3 | L6 | gpio | GPIO3 | ADC1_CH3, GPIO3 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 4 | L7 | gpio | GPIO4 | ADC1_CH4, GPIO4, MTMS, FSPIHD | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 5 | L8 | gpio | GPIO5 | ADC1_CH5, GPIO5, MTDI, FSPIWP | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 6 | L9 | gpio | GPIO6 | ADC1_CH6, GPIO6, MTCK, FSPICLK | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 7 | L10 | gpio | GPIO7 | GPIO7, MTDO, FSPID | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 8 | R10 | gpio | GPIO8 | onboard WS2812 RGB LED, GPIO8 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 9 | R9 | gpio | GPIO9 | BOOT button (low at reset = download mode), GPIO9 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 12 | inner pad | gpio | GPIO12 | USB_D-, GPIO12 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 13 | inner pad | gpio | GPIO13 | USB_D+, GPIO13 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 14 | R8 | gpio | GPIO14 | GPIO14 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 15 | R7 | gpio | GPIO15 | status LED, GPIO15 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 18 | R6 | gpio | GPIO18 | GPIO18, SDIO_CMD, FSPICS2 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 19 | R5 | gpio | GPIO19 | SCL (Mischianti default), GPIO19, SDIO_CLK, FSPICS3 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 20 | R4 | gpio | GPIO20 | SDA (Mischianti default), GPIO20, SDIO_DATA0, FSPICS4 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 21 | inner pad | gpio | GPIO21 | GPIO21, SDIO_DATA1, FSPICS5 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 22 | inner pad | gpio | GPIO22 | GPIO22, SDIO_DATA2 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 23 | inner pad | gpio | GPIO23 | GPIO23, SDIO_DATA3 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| ameridroid.com | 6.95 USD | in_stock | 2026-10-18 | https://ameridroid.com/products/esp32-c6-supermini-dev-board |

## FAQ

**What microcontroller does the ESP32-C6 SuperMini Dev Board use?**

The ESP32-C6 SuperMini Dev Board is built around the ESP32-C6FH4.

**How many GPIO pins does the ESP32-C6 SuperMini Dev Board have?**

22 GPIO pins are exposed. Xirkit documents 26 board pins, 22 of them with pin-level electrical limits.

**Are the ESP32-C6 SuperMini Dev Board I/O pins 5 V tolerant?**

No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2.475–3.6 V.

**How much current can a ESP32-C6 SuperMini Dev Board GPIO pin source?**

Documented output-high current per pin: 40 mA typ. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.

**What voltage powers the ESP32-C6 SuperMini Dev Board?**

Supply range 3.3–6 V. Power inputs: BAT, 5V (3.3–6 V).

**How much does the ESP32-C6 SuperMini Dev Board cost?**

From $6.95 at ameridroid.com. Prices are observed unit prices before tax and shipping.

**What are the ESP32-C6 SuperMini Dev Board dimensions?**

25.56 × 18 mm. A STEP model is available for enclosure fit checks.

**Which interfaces does the ESP32-C6 SuperMini Dev Board support?**

uart, gpio, spi, clock, adc, jtag, led, control, usb, sdio, i2c.

**How do I program the ESP32-C6 SuperMini Dev Board?**

Supported frameworks: Arduino IDE, ESP-IDF, ESPHome.

**Where does this ESP32-C6 SuperMini Dev Board data come from?**

Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [ESP32-C6 SuperMini Dev Board datasheet](https://mischianti.org/esp32-c6-supermini-high-resolution-pinout-datasheet-schema-and-specs/)
- [ameridroid.com listing](https://ameridroid.com/products/esp32-c6-supermini-dev-board)

## Part graph

### Built from

- [ESP32-C6FH4](https://www.xirkit.io/products/category/dev-boards/esp32-c6fh4) — main processor on the ESP32-C6 SuperMini Dev Board

### Alternatives (by use case)

- [ESP32-H2 SuperMini Dev Board](https://www.xirkit.io/products/generic-esp32-h2-supermini-dev-board-ea00) — Both serve connected iot and wireless sensor nodes — check the trade-offs; $6.95 vs $6.95
- [ESP32-S3 SuperMini Dev Board](https://www.xirkit.io/products/generic-esp32-s3-supermini-dev-board-27b2) — Both serve connected iot and wireless sensor nodes — check the trade-offs; $6.95 vs $4
- [Milk-V Duo S](https://www.xirkit.io/products/milk-v-duo-s-41db) — Both serve connected iot and wireless sensor nodes — check the trade-offs; $6.95 vs $9.99
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- [Raspberry Pi Pico 2 W](https://www.xirkit.io/products/raspberry-pi-pico-2-w-b3bc) — Both serve connected iot and wireless sensor nodes — check the trade-offs; $6.95 vs $7
- [ESP32-C3 SuperMini Dev Board](https://www.xirkit.io/products/generic-esp32-c3-supermini-dev-board-d19e) — Both serve connected iot and wireless sensor nodes — check the trade-offs; $6.95 vs $5.95
- [Seeed Studio XIAO ESP32-S3](https://www.xirkit.io/products/seeed-studio-xiao-esp32-s3-f8f5) — Both serve connected iot and wireless sensor nodes — check the trade-offs; $6.95 vs $7.49
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