ESP32-C6-WROOM-1 (N8): specs and pinout
Espressif ESP32-C6-WROOM-1-N8 module: ESP32-C6 single-core 32-bit RISC-V MCU with 2.4 GHz Wi-Fi 6, Bluetooth 5 (LE), Zigbee and Thread (802.15.4), 8 MB flash and a PCB antenna. The listing calls it a board; the only document read is the module datasheet, so no development-board facts (USB port, regulator, headers) are stated.
Specs
| Spec | Value | Source |
|---|---|---|
| Supply voltage | 3.0 V to 3.6 V (typical 3.3 V) | source Table 6-2 Recommended Operating Conditions (p.26) |
| Current the supply must deliver | 0.5 A minimum capability | source Table 6-2 (p.26) |
| Ambient temperature (85 C version) | -40 to 85 C (N8 is the 85 C version) | source Table 1-1; Table 6-2 |
| Flash | 8 MB Quad SPI (N8) | source Table 1-1 Series Comparison |
| Radio | 2.4 GHz Wi-Fi 6 (802.11ax), Bluetooth 5 (LE), Zigbee and Thread (802.15.4) | source Cover page, Module Overview |
| CPU | 32-bit RISC-V single-core | source Cover page |
| GPIOs | 23 GPIOs | source Cover page |
| Input logic levels | VIH min 0.75 x VDD, VIL max 0.25 x VDD | source Table 6-3 DC Characteristics (p.26) |
| Output drive per pin (typ) | About 40 mA source and 28 mA sink at PAD_DRIVER = 3 | source Table 6-3 DC Characteristics (p.26) |
| Download boot | Joint download boot: GPIO8 = 1 and GPIO9 = 0 at reset (GPIO9 is 1 by default) | source Table 4-3 Chip Boot Mode Control (p.13); Table 4-1 |
Power
| Value | Source | |
|---|---|---|
| Supply | 3.0 V to 3.6 V, supply able to give at least 0.5 A | source Table 6-2 (p.26) |
Pinout
Rows are the 29 module pins from the Espressif datasheet (Table 3-1). They describe the module only, not whatever board carries it; a dev board may rename or reroute pins, and the listing's board is not covered by an official document.
| Pin | Function | Voltage | Notes | Source |
|---|---|---|---|---|
| GND | Ground | Module pin 1 | source Table 3-1 Pin Definitions (p.11) | |
| 3V3 | Power supply | 3.3 V | Module pin 2 | source Table 3-1 Pin Definitions (p.11) |
| EN | High: on, enables the chip. Low: off, the chip powers off. Do not leave the EN pin floating. | Module pin 3 | source Table 3-1 Pin Definitions (p.11) | |
| IO4 | MTMS, GPIO4, LP_GPIO4, LP_UART_RXD, ADC1_CH4, FSPIHD | Module pin 4 | source Table 3-1 Pin Definitions (p.11) | |
| IO5 | MTDI, GPIO5, LP_GPIO5, LP_UART_TXD, ADC1_CH5, FSPIWP | Module pin 5 | source Table 3-1 Pin Definitions (p.11) | |
| IO6 | MTCK, GPIO6, LP_GPIO6, LP_I2C_SDA, ADC1_CH6, FSPICLK | Module pin 6 | source Table 3-1 Pin Definitions (p.11) | |
| IO7 | MTDO, GPIO7, LP_GPIO7, LP_I2C_SCL, FSPID | Module pin 7 | source Table 3-1 Pin Definitions (p.11) | |
| IO0 | GPIO0, XTAL_32K_P, LP_GPIO0, LP_UART_DTRN, ADC1_CH0 | Module pin 8 | source Table 3-1 Pin Definitions (p.11) | |
| IO1 | GPIO1, XTAL_32K_N, LP_GPIO1, LP_UART_DSRN, ADC1_CH1 | Module pin 9 | source Table 3-1 Pin Definitions (p.11) | |
| IO8 | GPIO8 (strapping pin) | Module pin 10 | source Table 3-1 Pin Definitions (p.11) | |
| IO10 | GPIO10 | Module pin 11 | source Table 3-1 Pin Definitions (p.11) | |
| IO11 | GPIO11 | Module pin 12 | source Table 3-1 Pin Definitions (p.11) | |
| IO12 | GPIO12, USB_D- | Module pin 13 | source Table 3-1 Pin Definitions (p.11) | |
| IO13 | GPIO13, USB_D+ | Module pin 14 | source Table 3-1 Pin Definitions (p.11) | |
| IO9 | GPIO9 (strapping pin) | Module pin 15 | source Table 3-1 Pin Definitions (p.11) | |
| IO18 | GPIO18, SDIO_CMD, FSPICS2 | Module pin 16 | source Table 3-1 Pin Definitions (p.11) | |
| IO19 | GPIO19, SDIO_CLK, FSPICS3 | Module pin 17 | source Table 3-1 Pin Definitions (p.11) | |
| IO20 | GPIO20, SDIO_DATA0, FSPICS4 | Module pin 18 | source Table 3-1 Pin Definitions (p.11) | |
| IO21 | GPIO21, SDIO_DATA1, FSPICS5 | Module pin 19 | source Table 3-1 Pin Definitions (p.11) | |
| IO22 | GPIO22, SDIO_DATA2 | Module pin 20 | source Table 3-1 Pin Definitions (p.11) | |
| IO23 | GPIO23, SDIO_DATA3 | Module pin 21 | source Table 3-1 Pin Definitions (p.11) | |
| NC | Not connected | Module pin 22 | source Table 3-1 Pin Definitions (p.11) | |
| IO15 | GPIO15 (strapping pin, JTAG source) | Module pin 23 | source Table 3-1 Pin Definitions (p.11) | |
| RXD0 | U0RXD, GPIO17, FSPICS1 | Module pin 24 | source Table 3-1 Pin Definitions (p.11) | |
| TXD0 | U0TXD, GPIO16, FSPICS0 | Module pin 25 | source Table 3-1 Pin Definitions (p.11) | |
| IO3 | GPIO3, LP_GPIO3, LP_UART_CTSN, ADC1_CH3 | Module pin 26 | source Table 3-1 Pin Definitions (p.11) | |
| IO2 | GPIO2, LP_GPIO2, LP_UART_RTSN, ADC1_CH2, FSPIQ | Module pin 27 | source Table 3-1 Pin Definitions (p.11) | |
| GND | Ground | Module pin 28 | source Table 3-1 Pin Definitions (p.11) | |
| EPAD | Ground | Module pin 29 | source Table 3-1 Pin Definitions (p.11) |
Build with it
Project ideas for the ESP32-C6-WROOM-1 (N8). Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.
- A Wi-Fi light level logger with an ESP32-C6-WROOM-1 module and a BH1750 sensor module: If you use the bare module, power it from a 3.3 V supply of 0.5 A and program it through TXD0 and RXD0 with the boot pins set as in Table 4-3; I2C can be put on IO6 and IO7 at 3.3 V. If your board already has USB and regulation, skip the extra parts.
- A Wi-Fi weather node with an ESP32-C6-WROOM-1 module and a BME280 sensor module: The BME280 module is an I2C part run at 3.3 V; the C6 logic is 3.3 V so no level shifting is needed.
- A 0.96 inch OLED status display with an ESP32-C6-WROOM-1 module showing Wi-Fi signal strength: The OLED runs at 3.3 V on I2C; the C6 reads signal strength from its Wi-Fi 6 radio and writes it to the display.
- A wireless push button sender with an ESP32-C6-WROOM-1 module and a tactile button: A button to ground on a free GPIO can send a Wi-Fi or BLE message; keep GPIO8 and GPIO9 free of the button because they are strapping pins.
Common mistakes
- Powering the module from 5 V or less than 0.5 A at 3.3 V: the supply range is 3.0 V to 3.6 V with 0.5 A capability (source: link, Table 6-2)
- Leaving EN floating: the datasheet says do not leave the EN pin floating (source: link, Table 3-1)
- Holding GPIO8 or GPIO9 in the wrong state at reset: GPIO9 low with GPIO8 high puts the chip in download boot; these are strapping pins (source: link, Section 4)
Not covered by the official source
- The listing calls it a board; the datasheet covers only the module. If the product is an ESP32-C6-DevKitC-1 style board, its own Espressif user guide is the document for USB, regulator and header facts; the listing does not name one, so none is used.
- Current consumption tables are not given on this page.
- Pin names are copied as the datasheet writes them.
Sources
- link (ESP32-C6-WROOM-1 and WROOM-1U Datasheet v1.4, Espressif)