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4.5 KiB
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94 lines
4.5 KiB
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ESP32-PICO-KIT V4 Getting Started Guide
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=======================================
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This user guide shows how to get started with the ESP32-PICO-KIT V4 mini development board. For description of other versions of the ESP32-PICO-KIT check :doc:`../hw-reference/index`.
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What You Need
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-------------
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* 1 × :ref:`ESP32-PICO-KIT V4 mini development board <get-started-pico-kit-v4-board-front>`
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* 1 × USB A / Micro USB B cable
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* 1 × PC loaded with Windows, Linux or Mac OS
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Overview
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--------
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ESP32-PICO-KIT V4 is a mini development board based on the ESP32-PICO-D4 SIP module produced by `Espressif <https://espressif.com>`_. For easy interfacing, all the IO signals and system power on ESP32-PICO-D4 are led out through two 20 x 0.1" pitch header pads on both sides of the development board. To make the ESP32-PICO-KIT V4 fit into mini breadboards, the header pads are populated with two 17 pin headers. Remaining 2 x 3 pads grouped on one side of the board besides the antenna are not populated. If required, the additional 2 x 3 pin headers may be soldered later by the user. The development board integrates a USB-UART Bridge circuit, allowing the developers to connect the board to a PC's USB port for downloads and debugging.
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.. note::
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The 2 x 3 pads not populated with pin headers are internally connected to the flash memory embedded in the ESP32-PICO-D4 SIP module. For more details see module's datasheet in :ref:`get-started-pico-kit-v4-related-documents`.
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Functional Description
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----------------------
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The following list and figure below describe key components, interfaces and controls of ESP32-PICO-KIT V4 board.
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ESP32-PICO-D4
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Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT V4 board. The complete system of the ESP32 chip has been integrated into the SIP module, requiring only external antenna with LC matching network, decoupling capacitors and pull-up resistors for EN signals to function properly.
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USB-UART Bridge
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A single chip USB-UART bridge provides up to 1 Mbps transfers rates.
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I/O
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All the pins on ESP32-PICO-D4 are broken out to the pin headers on the board. Users can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc.
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Micro USB Port
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USB interface. It functions as the power supply for the board and the communication interface between PC and ESP32-PICO-KIT V4.
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EN Button
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Reset button; pressing this button resets the system.
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BOOT Button
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Holding down the Boot button and pressing the EN button initiates the firmware download mode. Then user can download firmware through the serial port.
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.. _get-started-pico-kit-v4-board-front:
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.. figure:: ../_static/esp32-pico-kit-v4-layout.jpg
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:align: center
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:alt: ESP32-PICO-KIT V4 board layout
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:figclass: align-center
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ESP32-PICO-KIT V4 board layout
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Power Supply Options
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--------------------
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There following options are available to provide power supply to the ESP32-PICO-KIT V4:
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1. Micro USB port, this is default power supply connection
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2. 5V / GND header pins
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3. 3V3 / GND header pins
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.. warning::
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Above options are mutually exclusive, i.e. the power supply may be provided using only one of the above options. Attempt to power the board using more than one connection at a time may damage the board and/or the power supply source.
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Start Application Development
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------------------------------
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Before powering up the ESP32-PICO-KIT V4, please make sure that the board has been received in good condition with no obvious signs of damage.
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To start development of applications, proceed to section :doc:`index`, that will walk you through the following steps:
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* :ref:`get-started-setup-toolchain` in your PC to develop applications for ESP32 in C language
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* :ref:`get-started-connect` the module to the PC and verify if it is accessible
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* :ref:`get-started-build-flash` an example application to the ESP32
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* :ref:`get-started-build-monitor` instantly what the application is doing
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.. _get-started-pico-kit-v4-related-documents:
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Related Documents
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-----------------
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* `ESP32-PICO-KIT V4 schematic <https://dl.espressif.com/dl/schematics/esp32-pico-kit-v4_schematic.pdf>`_ (PDF)
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* `ESP32-PICO-D4 Datasheet <http://espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf>`_ (PDF)
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* :doc:`../hw-reference/index`
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.. * `ESP32-PICO-KIT Datasheet <http://espressif.com/sites/default/files/documentation/esp32-pico-kit_datasheet_en.pdf>`_ (PDF)
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.. toctree::
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:hidden:
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get-started-pico-kit-v3
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