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OLIMEX ES32-POE - User Manual

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ES32-POE
ESP32-POE-ISO
User Manual
Document revision 2.1.
September 2023
www.olimex.com
1
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Summary

ESP32-POE & ESP32-POE-ISO Introduction

ESP32-POE Board Features

Detailed features of the ESP32-POE development board, including its module and capabilities.

ESP32-POE-ISO Board Features

Detailed features of the ESP32-POE-ISO development board, highlighting its isolation capabilities.

PoE Standard Compliance

Explains the IEEE 802.3af PoE standard compliance and power delivery capabilities.

ESP32-POE vs ESP32-POE-ISO: Key Differences

Compares the ESP32-POE and ESP32-POE-ISO, focusing on galvanic isolation differences.

ESP32-POE;ISO Version Variations

Outlines differences between various hardware revisions of ESP32-POE and ESP32-POE-ISO.

ESP32-POE Order Codes and Accessories

Lists the available order codes for ESP32-POE boards and related accessories.

ESP32-POE-ISO Order Codes and Accessories

Lists the available order codes for ESP32-POE-ISO boards and related accessories.

Hardware Overview

ESP32-POE Board Layout

Diagram and labels for the physical components on the ESP32-POE board.

ESP32-POE GPIO Pinout

Details the General Purpose Input/Output pins available on the ESP32-POE.

Power Supply and Board Pads

Explains the power supply options and the function of various board pads.

ESP32-POE-ISO GPIO Pinout

Details the General Purpose Input/Output pins available on the ESP32-POE-ISO.

Hardware Schematics Access

Information on accessing the open-source hardware design schematics.

ESP32-POE;ISO Power Sources

Details the power sources and consumption for ESP32-POE(-ISO) boards.

External Power Sense Feature

Explains how to detect external power sources and their availability on GPIO39.

Battery Measurement Feature

Describes how to measure Li-Po battery voltage and its availability on GPIO35.

UEXT Connector Details

Information about the UEXT connector, its pinout, and compatible modules.

On-board LED Status Indicators

Explains the function of the on-board status LEDs for CHRG1, PWR1, LNK1, and ACT1.

Software Support

Olimex Software Examples

Provides links to example code and software development resources for ESP32-POE boards.

Frequently Asked Questions (FAQ)

FAQ: USB and PoE Powering Safety

Addresses safety concerns when using USB and PoE power simultaneously.

FAQ: GPIO Pin Multiplexing

Explains ESP32's pin multiplexing for I2C, UART, SPI and pin availability.

FAQ: Power Supply Voltage Troubleshooting

Troubleshoots power supply issues, particularly regarding voltage requirements for PoE.

FAQ: Ethernet Power Budget

Details current availability from Ethernet for additional circuits on ESP32-POE variants.

FAQ: Battery Operation and LEDs

Explains why LEDs may be off when the board is powered by battery.

FAQ: Hot Resistor Identification

Identifies a hot resistor and discusses its safety and function in PoE systems.

FAQ: Baud Rate and Driver Issues

Addresses potential issues with baud rates and recommends driver updates for CH340.

FAQ: WROVER Ethernet Connectivity

Troubleshoots Ethernet connectivity issues specific to WROVER module variants.

Helpful Links

ESP32-POE Product Page Link

Link to the main product page for the ESP32-POE board on the Olimex website.

ESP32-POE-ISO Product Page Link

Link to the main product page for the ESP32-POE-ISO board on the Olimex website.

OLIMEX ES32-POE Specifications

General IconGeneral
ManufacturerOLIMEX
ModelES32-POE
CPUESP32
Clock Speed240 MHz
RAM520 KB
Flash Memory4 MB
Ethernet10/100 Mbps
Operating Voltage5V
Operating Temperature-40°C to +85°C
MicroSD cardYes
PoEYes
ADC12-bit SAR ADC up to 18 channels
DAC2 channels
WirelessWi-Fi 802.11 b/g/n, Bluetooth

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