121 lines
4.8 KiB
ReStructuredText
121 lines
4.8 KiB
ReStructuredText
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##################
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ESP32-C3-DevKitM-1
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##################
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The ESP32-C3-DevKitM-1 development board is one of Espressif's official boards. This board is based on the `ESP32-C3-MINI-1`_ module, with the `ESP32-C3`_ as the core.
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Specifications
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--------------
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- Small sized 2.4 GHz WiFi (802.11 b/g/n) and Bluetooth® 5 module
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- Built around ESP32C3 series of SoCs, RISCV singlecore microprocessor
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- 4 MB flash in chip package
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- 15 available GPIOs (module)
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- Peripherals
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- 22 × programmable GPIOs
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- Digital interfaces:
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- 3 × SPI
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- 2 × UART
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- 1 × I2C
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- 1 × I2S
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- Remote control peripheral, with 2 transmit channels and 2 receive channels
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- LED PWM controller, with up to 6 channels
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- Full-speed USB Serial/JTAG controller
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- General DMA controller (GDMA), with 3 transmit channels and 3 receive channels
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- 1 × TWAI® controller (compatible with ISO 11898-1)
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- Analog interfaces:
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- 2 × 12-bit SAR ADCs, up to 6 channels
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- 1 × temperature sensor
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- Timers:
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- 2 × 54-bit general-purpose timers
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- 3 × watchdog timers
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- 1 × 52-bit system timer
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- Onboard PCB antenna or external antenna connector
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Header Block
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------------
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.. note::
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Not all of the chip pins are exposed to the pin headers.
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J1
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^^^
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=== ==== ========== ===================================
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No. Name Type [1]_ Function
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=== ==== ========== ===================================
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1 GND G Ground
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2 3V3 P 3.3 V power supply
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3 3V3 P 3.3 V power supply
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4 IO2 I/O/T GPIO2 [2]_, ADC1_CH2, FSPIQ
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5 IO3 I/O/T GPIO3, ADC1_CH3
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6 GND G Ground
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7 RST I CHIP_PU
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8 GND G Ground
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9 IO0 I/O/T GPIO0, ADC1_CH0, XTAL_32K_P
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10 IO1 I/O/T GPIO1, ADC1_CH1, XTAL_32K_N
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11 IO10 I/O/T GPIO10, FSPICS0
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12 GND G Ground
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13 5V P 5 V power supply
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14 5V P 5 V power supply
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15 GND G Ground
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=== ==== ========== ===================================
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J3
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^^^
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=== ==== ========== ====================================
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No. Name Type [1]_ Function
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=== ==== ========== ====================================
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1 GND G Ground
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2 TX I/O/T GPIO21, U0TXD
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3 RX I/O/T GPIO20, U0RXD
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4 GND G Ground
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5 IO9 I/O/T GPIO9 [2]_
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6 IO8 I/O/T GPIO8 [2]_, RGB LED
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7 GND G Ground
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8 IO7 I/O/T GPIO7, FSPID, MTDO
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9 IO6 I/O/T GPIO6, FSPICLK, MTCK
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10 IO5 I/O/T GPIO5, ADC2_CH0, FSPIWP, MTDI
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11 IO4 I/O/T GPIO4, ADC1_CH4, FSPIHD, MTMS
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12 GND G Ground
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13 IO18 I/O/T GPIO18, USB_D-
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14 IO19 I/O/T GPIO19, USB_D+
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15 GND G Ground
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=== ==== ========== ====================================
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.. [1] P: Power supply; I: Input; O: Output; T: High impedance.
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.. [2] GPIO2, GPIO8, and GPIO9 are strapping pins of the ESP32-C3FN4 chip. During the chip's system reset, the latches of the strapping pins sample the voltage level as strapping bits, and hold these bits until the chip is powered down or shut down.
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Pin Layout
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----------
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.. figure:: ../_static/esp32-c3_devkitM-1_pinlayout.png
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:align: center
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:width: 600
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:alt: ESP32-C3-DevKitM-1 (click to enlarge)
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:figclass: align-center
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Strapping Pins
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--------------
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Some of the GPIO's have important features during the booting process. Here is the list of the strapping pins on the `ESP32-C3`_.
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==== ========= ===================================================================== ================ =================
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GPIO Default Function Pull-up Pull-down
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==== ========= ===================================================================== ================ =================
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IO2 N/A Booting Mode See `ESP32-C3`_ See `ESP32-C3`_
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IO9 Pull-up Booting Mode SPI Boot Download Boot
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IO8 N/A Booting Mode Don't Care Download Boot
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IO8 Pull-up Enabling/Disabling Log Print See `ESP32-C3`_ See `ESP32-C3`_
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==== ========= ===================================================================== ================ =================
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For more detailed information, see the `ESP32-C3`_ datasheet.
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Resources
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---------
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* `ESP32-C3`_ (Datasheet)
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* `ESP32-C3-MINI-1`_ (Datasheet)
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.. _ESP32-C3: https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf
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.. _ESP32-C3-MINI-1: https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_en.pdf
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