![]() To take advantage of the PoE functionality the RJ45 Port of the Ethernet board (A) should be connected with an Ethernet cable to a switch that supports PoE. The PoE board (B) has the following features: The main components of the PoE board (B) are shown on the block diagram under Functionality Overview. This board coverts power delivered over the Ethernet cable (PoE) to provide a power supply for the Ethernet board (A). If following steps and using software described in Section Start Application Development, users don’t need to do any operation with BOOT button or EN button. For details, see GPIO Header 1.Īutomatic firmware download is supported. This header provides six unpopulated through-hole solder pads connected to spare GPIOs of ESP32. Holding down BOOT and then pressing EN initiates Firmware Download mode for downloading firmware through the serial port. Two LEDs (green and red) that respectively indicate the “Link” and “Activity” statuses of the PHY.ĭownload button. The magnetics also provide galvanic isolation between the transceiver and the Ethernet device. The Magnetics are part of the Ethernet specification to protect against faults and transients, including rejection of common mode signals between the transceiver IC and the cable. The PHY supports the IEEE 802.3/802.3u standard of 10/100 Mbps. The connection between PHY and ESP32 is done through the reduced media-independent interface (RMII), a variant of the media-independent interface (MII) standard. The physical layer (PHY) connection to the Ethernet cable is implemented using the IP101GRI chip. Provided DC 5 V to 3.3 V conversion, output current up to 2 A.Ī pair male and female header pins for mounting the PoE board (B) This red LED turns on when power is supplied to the board, either from USB or 5 V Input. The 5 V power supply interface can be more convenient when the board is operating autonomously (not connected to a computer). Toggling the switch to 5V0 position powers the board on, toggling to GND position powers the board off. Power supply for the board as well as the communication interface between a computer and the board. See ESP32-Ethernet-Kit V1.2 Ethernet board (A) schematic. The FT2232H chip enhances user-friendliness in terms of application development and debugging. FT2232H also features USB-to-JTAG interface which is available on channel A of the chip, while USB-to-serial is on channel B. The FT2232H chip serves as a multi-protocol USB-to-serial bridge which can be programmed and controlled via USB to provide communication with ESP32. Two LEDs to show the status of UART transmission. For details, see GPIO Header 2.Ī 4-bit DIP switch used to configure the functionality of selected GPIOs of ESP32. This ESP32 module features 64-Mbit PSRAM for flexible extended storage and data processing capabilities.įive unpopulated through-hole solder pads to provide access to selected GPIOs of ESP32. The table below provides description starting from the picture’s top right corner and going clockwise. Ethernet Board (A) ĮSP32-Ethernet-Kit - Ethernet board (A) layout (click to enlarge) ![]() The following figures and tables describe the key components, interfaces, and controls of the ESP32-Ethernet-Kit. ![]() The block diagram below shows the main components of ESP32-Ethernet-Kit and their interconnections.ĮSP32-Ethernet-Kit block diagram (click to enlarge) Functional Description This chip enables to use JTAG for direct debugging of ESP32 through the USB interface without a separate JTAG debugger. The A board can work independently, without the board B installed.ĮSP32-Ethernet-Kit V1.2 (click to enlarge) įor the application loading and monitoring, the Ethernet board (A) also features FTDI FT2232H chip - an advanced multi-interface USB bridge. The PoE board (B) provides power over Ethernet functionality. ![]() The Ethernet board (A) contains Bluetooth/Wi-Fi dual-mode ESP32-WROVER-E module and IP101GRI, a Single Port 10/100 Fast Ethernet Transceiver (PHY). It consists of two development boards, the Ethernet board A and the PoE board B. Overview ĮSP32-Ethernet-Kit is an ESP32-based development board produced by Espressif. You can skip the introduction sections and go directly to Section Start Application Development. At the same time, to provide more flexible power supply options, the ESP32-Ethernet-Kit also supports power over Ethernet (PoE).ĮSP32-Ethernet-Kit V1.2 Overview (click to enlarge) What You Need Ĭomputer running Windows, Linux, or macOS The ESP32-Ethernet-Kit is an Ethernet-to-Wi-Fi development board that enables Ethernet devices to be interconnected over Wi-Fi. This guide shows how to get started with the ESP32-Ethernet-Kit development board and also provides information about its functionality and configuration options. ESP32-Ethernet-Kit V1.2 Getting Started Guide ![]()
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