kopia lustrzana https://github.com/espressif/esp-idf
370 wiersze
11 KiB
ReStructuredText
370 wiersze
11 KiB
ReStructuredText
ESP32-PICO-DevKitM-2
|
||
********************
|
||
|
||
:link_to_translation:`zh_CN:[中文]`
|
||
|
||
Overview
|
||
========
|
||
|
||
ESP32-PICO-DevKitM-2 is an ESP32-based development board produced by `Espressif <https://espressif.com>`_.
|
||
|
||
The core of this board is `ESP32-PICO-MINI-02(02U) <https://www.espressif.com/en/products/modules>`_ module with complete Wi-Fi and Bluetooth® functionalities. The development board features a USB-to-UART Bridge circuit which allows developers to connect the board to a computer's USB port for flashing and debugging.
|
||
|
||
All the IO signals and system power on ESP32-PICO-MINI-02(02U) are led out to two rows of 18 x 0.1" header pads on both sides of the development board for easy access. For compatibility with Dupont wires, all header pads are populated with two rows of male pin headers.
|
||
|
||
.. note::
|
||
|
||
ESP32-PICO-DevKitM-2 comes with male headers by default.
|
||
|
||
ESP32-PICO-DevKitM-2 provides the users with hardware for development of applications based on the ESP32, making it easier for users to explore ESP32 functionalities.
|
||
|
||
.. figure:: ../../../_static/esp32-pico-devkitm-2-overview.png
|
||
:align: center
|
||
:scale: 70%
|
||
:alt: ESP32-PICO-DevKitM-2 (click to enlarge)
|
||
:figclass: align-center
|
||
|
||
ESP32-PICO-DevKitM-2 Overview (click to enlarge)
|
||
|
||
This guide covers:
|
||
|
||
- `Getting Started`_: Provides an overview of the ESP32-PICO-DevKitM-2 and software setup instructions to get started.
|
||
- `Contents and Packaging`_: Provides information about packaging and contents for retail and wholesale orders.
|
||
- `Hardware Reference`_: Provides more detailed information about the ESP32-PICO-DevKitM-2's hardware.
|
||
- `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions (if any) of the ESP32-PICO-DevKitM-2.
|
||
- `Related Documents`_: Gives links to related documentation.
|
||
|
||
|
||
Getting Started
|
||
===============
|
||
|
||
This section describes how to get started with the ESP32-PICO-DevKitM-2. It begins with a few introductory sections about the ESP32-PICO-DevKitM-2, then Section `Start Application Development`_ provides instructions on how to flash firmware onto the ESP32-PICO-DevKitM-2.
|
||
|
||
|
||
.. _get-started-pico-devkitm-2-board-front:
|
||
|
||
Description of Components
|
||
-------------------------
|
||
|
||
The following figure and the table below describe the key components, interfaces, and controls of the ESP32-PICO-DevKitM-2 board. We take the board with a ESP32-PICO-MINI-02 module as an example in the following sections.
|
||
|
||
.. figure:: ../../../_static/esp32-pico-devkitm-2-layout-front.png
|
||
:align: center
|
||
:scale: 90%
|
||
:alt: ESP32-PICO-DevKitM-2 (click to enlarge)
|
||
:figclass: align-center
|
||
|
||
ESP32-PICO-DevKitM-2 board layout - front (click to enlarge)
|
||
|
||
Below is the description of the items identified in the figure starting from the top left corner and going clockwise.
|
||
|
||
.. list-table::
|
||
:widths: 10 25
|
||
:header-rows: 1
|
||
|
||
* - Key Component
|
||
- Description
|
||
* - ESP32-PICO-MINI-02
|
||
- Standard ESP32-PICO-MINI-02 module soldered to the ESP32-PICO-DevKitM-2 board. The complete ESP32 system on a chip (ESP32 SoC) has been integrated into the module. Users can also select the board with ESP32-PICO-MINI-02U soldered.
|
||
* - LDO
|
||
- V-to-3.3V Low dropout voltage regulator (LDO).
|
||
* - USB-to-UART bridge
|
||
- CP2102N, single-chip USB-UART bridge that offers up to 3 Mbps transfers rates.
|
||
* - Micro-B USB Port
|
||
- USB interface. Power supply for the board as well as the communication interface between a computer and the board.
|
||
* - 5V Power On LED
|
||
- This red LED turns on when power is supplied to the board. For details, see the schematic in `Related Documents`_.
|
||
* - I/O Connector
|
||
- All the pins on ESP32-PICO-MINI-02 are broken out to pin headers. You can program ESP32 to enable multiple functions, such as PWM, ADC, DAC, I2C, I2S, SPI, etc. For details, please see Section `Pin Descriptions`_.
|
||
* - BOOT Button
|
||
- Download button. Holding down **Boot** and then pressing **EN** initiates Firmware Download mode for downloading firmware through the serial port.
|
||
* - EN Button
|
||
- Reset button.
|
||
|
||
|
||
Start Application Development
|
||
-----------------------------
|
||
|
||
Before powering up your ESP32-PICO-DevKitM-2, please make sure that the board is in good condition with no obvious signs of damage.
|
||
|
||
|
||
Required Hardware
|
||
"""""""""""""""""
|
||
|
||
- 1 x ESP32-PICO-DevKitM-2
|
||
- 1 x USB 2.0 A to Micro B cable
|
||
- 1 x Computer running Windows, Linux, or macOS
|
||
|
||
|
||
.. _user-guide-pico-devkitm-2-software-setup:
|
||
|
||
Software Setup
|
||
""""""""""""""
|
||
|
||
Please proceed to :doc:`../../get-started/index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment.
|
||
|
||
|
||
Contents and Packaging
|
||
======================
|
||
|
||
Retail Orders
|
||
-------------
|
||
|
||
If you order one or several samples of the board, each ESP32-PICO-DevKitM-2 development board comes in an individual package.
|
||
|
||
For retail orders, please go to https://www.espressif.com/en/contact-us/get-samples.
|
||
|
||
|
||
Wholesale Orders
|
||
----------------
|
||
|
||
If you order in bulk, the boards come in large cardboard boxes.
|
||
|
||
For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions.
|
||
|
||
|
||
Hardware Reference
|
||
==================
|
||
|
||
Block Diagram
|
||
-------------
|
||
|
||
The block diagram below shows the main components of ESP32-PICO-DevKitM-2 and their interconnections.
|
||
|
||
.. figure:: ../../../_static/esp32-pico-devkitm-2-block.png
|
||
:align: center
|
||
:scale: 70%
|
||
:alt: ESP32-PICO-DevKitM-2 (click to enlarge)
|
||
:figclass: align-center
|
||
|
||
ESP32-PICO-DevKitM-2 Block Diagram (click to enlarge)
|
||
|
||
|
||
Power Supply Options
|
||
--------------------
|
||
|
||
There are three mutually exclusive ways to provide power to the board:
|
||
|
||
* Micro USB port, default power supply
|
||
* 5V/GND header pins
|
||
* 3V3/GND header pins
|
||
|
||
.. warning::
|
||
|
||
The power supply must be provided using **one and only one of the options above**, otherwise the board and/or the power supply source can be damaged.
|
||
|
||
|
||
Pin Descriptions
|
||
----------------
|
||
|
||
The two tables below provide the **Name** and **Function** of I/O header pins on both sides of the board, see :ref:`get-started-pico-devkitm-2-board-front`. The pin numbering and header names are the same as in the schematic given in `Related Documents`_.
|
||
|
||
|
||
Header J2
|
||
"""""""""
|
||
|
||
.. list-table::
|
||
:widths: 5 5 5 35
|
||
:header-rows: 1
|
||
|
||
* - No.
|
||
- Name
|
||
- Type
|
||
- Function
|
||
* - 1
|
||
- IO20
|
||
- I/O
|
||
- GPIO20
|
||
* - 2
|
||
- IO21
|
||
- I/O
|
||
- GPIO21, VSPIHD, EMAC_TX_EN
|
||
* - 3
|
||
- IO22
|
||
- I/O
|
||
- GPIO22, VSPIWP, U0RTS, EMAC_TXD1
|
||
* - 4
|
||
- IO19
|
||
- I/O
|
||
- GPIO19, VSPIQ, U0CTS, EMAC_TXD0
|
||
* - 5
|
||
- IO8
|
||
- I/O
|
||
- GPIO8, SD_DATA1, HS1_DATA1, U2CTS
|
||
* - 6
|
||
- IO7
|
||
- I/O
|
||
- GPIO7, SD_DATA0, HS1_DATA0, U2RTS
|
||
* - 7
|
||
- IO5
|
||
- I/O
|
||
- GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK
|
||
* - 8
|
||
- NC
|
||
- \-
|
||
- NC
|
||
* - 9
|
||
- NC
|
||
- \-
|
||
- NC
|
||
* - 10
|
||
- RXD0
|
||
- I/O
|
||
- GPIO3, U0RXD :ref:`(See 1) <get-started-pico-devkitm-2-pin-notes>`, CLK_OUT2
|
||
* - 11
|
||
- TXD0
|
||
- I/O
|
||
- GPIO1, U0TXD :ref:`(See 1) <get-started-pico-devkitm-2-pin-notes>`, CLK_OUT3, EMAC_RXD2
|
||
* - 12
|
||
- IO35
|
||
- I
|
||
- ADC1_CH7, RTC_GPIO5
|
||
* - 13
|
||
- IO34
|
||
- I
|
||
- ADC1_CH6, RTC_GPIO4
|
||
* - 14
|
||
- IO38
|
||
- I
|
||
- GPIO38, ADC1_CH2, RTC_GPIO2
|
||
* - 15
|
||
- IO37
|
||
- I
|
||
- GPIO37, ADC1_CH1, RTC_GPIO1
|
||
* - 16
|
||
- EN
|
||
- I
|
||
- CHIP_PU
|
||
* - 17
|
||
- GND
|
||
- P
|
||
- Ground
|
||
* - 18
|
||
- VDD33 (3V3)
|
||
- P
|
||
- 3.3 V power supply
|
||
|
||
|
||
Header J3
|
||
"""""""""
|
||
|
||
.. list-table::
|
||
:widths: 5 5 5 35
|
||
:header-rows: 1
|
||
|
||
* - No.
|
||
- Name
|
||
- Type
|
||
- Function
|
||
* - 1
|
||
- GND
|
||
- P
|
||
- Ground
|
||
* - 2
|
||
- SENSOR_VP (FSVP)
|
||
- I
|
||
- GPIO36, ADC1_CH0, RTC_GPIO0
|
||
* - 3
|
||
- SENSOR_VN (FSVN)
|
||
- I
|
||
- GPIO39, ADC1_CH3, RTC_GPIO3
|
||
* - 4
|
||
- IO25
|
||
- I/O
|
||
- GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0
|
||
* - 5
|
||
- IO26
|
||
- I/O
|
||
- GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1
|
||
* - 6
|
||
- IO32
|
||
- I/O
|
||
- 32K_XP :ref:`(See 2a) <get-started-pico-devkitm-2-pin-notes>`, ADC1_CH4, TOUCH9, RTC_GPIO9
|
||
* - 7
|
||
- IO33
|
||
- I/O
|
||
- 32K_XN :ref:`(See 2b) <get-started-pico-devkitm-2-pin-notes>`, ADC1_CH5, TOUCH8, RTC_GPIO8
|
||
* - 8
|
||
- IO27
|
||
- I/O
|
||
- GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV
|
||
* - 9
|
||
- IO14
|
||
- I/O
|
||
- ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2
|
||
* - 10
|
||
- IO12
|
||
- I/O
|
||
- ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI :ref:`(See 3) <get-started-pico-devkitm-2-pin-notes>`, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3
|
||
* - 11
|
||
- IO13
|
||
- I/O
|
||
- ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER
|
||
* - 12
|
||
- IO15
|
||
- I/O
|
||
- ADC2_CH3, TOUCH3, RTC_GPIO13, MTDO, HSPICS0, HS2_CMD, SD_CMD, EMAC_RXD3
|
||
* - 13
|
||
- IO2
|
||
- I/O
|
||
- ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0
|
||
* - 14
|
||
- IO4
|
||
- I/O
|
||
- ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER
|
||
* - 15
|
||
- IO0
|
||
- I/O
|
||
- ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK
|
||
* - 16
|
||
- VDD33 (3V3)
|
||
- P
|
||
- 3.3V power supply
|
||
* - 17
|
||
- GND
|
||
- P
|
||
- Ground
|
||
* - 18
|
||
- EXT_5V (5V)
|
||
- P
|
||
- 5V power supply
|
||
|
||
|
||
.. _get-started-pico-devkitm-2-pin-notes:
|
||
|
||
.. note::
|
||
|
||
1. This pin is connected to the pin of the USB bridge chip on the board.
|
||
2. 32.768 kHz crystal oscillator:
|
||
a) input
|
||
b) output
|
||
3. The operating voltage of ESP32-PICO-DevKitM-2's embedded SPI flash is 3.3 V. Therefore, the strapping pin MTDI should be pulled down during the module power-on reset. If connected, please make sure that this pin is not held up on reset.
|
||
|
||
|
||
Pin Layout
|
||
""""""""""
|
||
.. figure:: ../../../_static/esp32-pico-devkitm-2-pinout.png
|
||
:align: center
|
||
:scale: 50%
|
||
:alt: ESP32-PICO-DevKitM-2 (click to enlarge)
|
||
:figclass: align-center
|
||
|
||
ESP32-PICO-DevKitM-2 Pin Layout (click to enlarge)
|
||
|
||
|
||
Hardware Revision Details
|
||
=========================
|
||
|
||
No previous versions available.
|
||
|
||
|
||
Related Documents
|
||
=================
|
||
|
||
* `ESP32-PICO-MINI-02 & ESP32-PICO-MINI-1U Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-pico-mini-02_datasheet_en.pdf>`_ (PDF)
|
||
* `ESP Product Selector <https://products.espressif.com/#/product-selector?names=>`_
|
||
* `ESP32-PICO-DevKitM-2 Schematic <https://dl.espressif.com/dl/schematics/SCH_ESP32-PICO-DEVKITM-2_V1_0_20200812A.pdf>`_ (PDF)
|
||
* `ESP32-PICO-DevKitM-2 PCB Layout <https://dl.espressif.com/dl/schematics/PCB_ESP32-PICO-DevKitM-2_V1.0_20200812.pdf>`_ (PDF)
|
||
|
||
For other design documentation for the board, please contact us at sales@espressif.com.
|