ESP32-Ethernet-Kit V1.1 Board

Support for for Espressif ESP32-Ethernet-Kit v1.1.

Support for for Espressif ESP32-Ethernet-Kit v1.1.

Author
Gunar Schorcht gunar.nosp@m.@sch.nosp@m.orcht.nosp@m..net
Erik Ekman eekma.nosp@m.n@go.nosp@m.ogle..nosp@m.com

Espressif ESP32-Ethernet-Kit V1.1

Table of Contents

  1. Overview
  2. Hardware
    1. Board Configuration
    2. Board Pinout
  3. Other Documentation Resources

Overview

The Espressif ESP32-Ethernet-Kit is a development board that uses the ESP32-WROVER-B module. Most important features of the board are

Furthermore, some GPIOs are broken out for extension. The USB bridge based on FDI FT2232HL provides a JTAG interface for OCD debugging through the USB interface. For flashing and debugging the board, see ESP32-Ethernet-Kit common board documentation.

ESP32-Ethernet-Kit V1.1

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Hardware

This section describes

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Board Configuration

ESP32-Ethernet-Kit v1.1 has the following on-board components

For detailed information about the configuration of ESP32 boards, see section Peripherals in RIOT-OS on ESP32 boards.

Note
Only a few GPIOs are broken out and available for external hardware on ESP32-Ethernet-Kit boards. Which GPIOs are available as peripherals depends on used modules.
Function GPIOs Remarks Configuration
BTN0 GPIO0 not available if esp_eth is used
ADC GPIO34, GPIO35, GPIO36, GPIO39 ADC Channels
DAC - DAC Channels
PWM_DEV(0) GPIO2, GPIO4 PWM Channels
I2C_DEV(0):SDA GPIO32 I2C Interfaces
I2C_DEV(0):SCL GPIO33 I2C Interfaces
SPI_DEV(0):CLK GPIO14 HSPI is used SPI Interfaces
SPI_DEV(0):MISO GPIO12 HSPI is used SPI Interfaces
SPI_DEV(0):MOSI GPIO13 HSPI is used SPI Interfaces
SPI_DEV(0):CS0 GPIO15 HSPI is used SPI Interfaces
UART_DEV(0):TxD GPIO1 Console (configuration is fixed) UART interfaces
UART_DEV(0):RxD GPIO3 Console (configuration is fixed) UART interfaces


Note
SPI_DEV(0) is not available if module esp_jtag is used. For the SPI_DEV(0) pins to work properly, the function switches (DIP switches) for the JTAG signals must be set to OFF.

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Board Pinout

The board schematic can be found here.

By default, only 4 bidirectional GPIO pins are unused: GPIO2, GPIO4, GPIO32, GPIO33. The suggested configuration is for PWM and I2C, but they can also be used for SPI or another serial port. By disabling the JTAG interface on the board, another 4 GPIOs can be made available (GPIO12, GPIO13, GPIO14, GPIO15).

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Other Documentation Resources

There is a comprehensive Getting Started Guide for the ESP32-Ethernet-Kit with a lot information about hardware configuration.

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