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Related Manuals for OLIMEX ESP32-POE2
Summary of Contents for OLIMEX ESP32-POE2
- Page 1 ESP32-POE2 User Manual Document revision 2.3, August 2024 www. o limex.com...
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Page 2: Table Of Contents
Table of Contents Introduction to ESP32-POE2........................3 ESP32-POE2 features..........................4 PoE standard............................5 The differences between ESP32-POE2 and ESP32-POE-ISO:.............6 Order codes for ESP32-POE2 and accessories:..................7 HARDWARE.............................8 ESP32-POE2 layout:..........................8 ESP32-POE2 GPIOs:..........................9 Power sense and battery level measurement:.................10 GPIO Buttons:..........................11 SD card connector (1-bit SD interface):..................12 UEXT connector:..........................13... -
Page 3: Introduction To Esp32-Poe2
This also means that when you program the board via the micro USB connector the Ethernet cable should be disconnected (if you have power over the Ethernet enabled)! Any board with own external power supply attached to ESP32-POE2 can be dangerous. Consider using Olimex USB-ISO to protect your computer and board from accidental short circuit. -
Page 4: Esp32-Poe2 Features
ESP32-WROVER-E-N4R8 - WiFi and bluetooth module with 4MB flash, 8MB PSRAM • CE-RED and LVD certification • Original design by OLIMEX Ltd • Low power design - 200uA consumption in deep sleep • Ethernet 100Mb interface with IEEE 802.3 PoE support •... -
Page 5: Poe Standard
PoE standard ESP32-POE2 follow the original IEEE 802.3af PoE standard and provides up to 25 W of DC power (minimum 44 V DC and 350 mA). Only 23 W is assured to be available at the powered device as some power dissipates in the cables. -
Page 6: The Differences Between Esp32-Poe2 And Esp32-Poe-Iso
ESP32-POE2. No sources of power with different ground should be attached at the same time. Additional boards that are attached to ESP32-POE2 and are also attached to other sources of power supply (being powered from other sources) can also cause problems! -
Page 7: Order Codes For Esp32-Poe2 And Accessories
Order codes for ESP32-POE2 and accessories: ESP32-POE2 Commercial temperature grade 0-70C board with internal antenna USB-CABLE-A-TO-C-1M 1 meter USB-A to USB-C cable for ESP32-POE2 power and programming Ethernet-CABLE-1M 1 meter Cat 5e Gigabit Ethernet cable with not shielded RJ45 connectors... -
Page 8: Hardware
HARDWARE ESP32-POE2 layout: LiPo battery connector UEXT connector USB-C for power User button and programming BUT1 12V/24V jumper selector Ethernet MicroSD card (1-bit SD mode) RESET button EXT1 connector RST1... -
Page 9: Esp32-Poe2 Gpios
ESP32-POE2 uses WROVER chip, and it uses GPIO16 and GPIO17 for PSRAM. ESP32-POE2 with WROVER module remaps GPIO16 to GPIO33 (so, for example, at UEXT pin #5 you have GPIO33 instead of GPIO16) and GPIO17 to GPIO0 (this is Ethernet clock source). -
Page 10: Power Sense And Battery Level Measurement
Power sense and battery level measurement: - External power sense available on GPI39 - Battery measurement disabled by default (for additional free GPIO), but can be enabled by SMT jumper change - Close SMT jumper BAT_SENS_E1 to enable battery measurement on GPI35. -
Page 11: Gpio Buttons
GPIO Buttons: By default button BUT1 is user button since the board automatically enters bootloader mode. However, BUT1 can be configured as BOOT button if you solder R6 pads together (or if you solder 0R resistor in 0402 package on same R6 pads). BOOT button might be needed if you need to manually force boot mode. -
Page 12: Sd Card Connector (1-Bit Sd Interface)
SD card connector (1-bit SD interface):... -
Page 13: Uext Connector
UEXT connector: Notice that GPIO16 is replaced by GPIO33 in boards with ESP32-WROVER-E module. -
Page 14: Ext1 Connector
EXT1 connector:... -
Page 15: Power Supply
POWER SUPPLY: selectable 12V/1.5A or 24V/0.75A output from PoE, depending on 24V_E1 PTH jumper state +5VP 5V/1.5A output from PoE 1. can be output or input; 2. when board is connected to USB or to Ethernet PoE this line can be used as output and power other circuits;... -
Page 16: Esp32-Poe2 Schematics
ESP32-POE2 schematics: ESP32-POE2 latest schematic is on GitHub... -
Page 17: Esp32-Poe2 Power Supply
8 hours of stand alone operation. +The LiPo battery connector is JST 2.0 mm connector and with Olimex’s battery polarity. If you use batteries from other manufacturers please make PLUS and MINUS are connected properly as you may... -
Page 18: Uext Connector
It is usually used to attach external modules without soldering. UEXT is 0.1” 2.54mm step boxed plastic connector. All signals are with 3.3V levels. GPIO16 is replaced by GPIO33 in boards with ESP32 WROVER module. Olimex has developed number of MODULES with this connector. There are temperature, humidity, pressure, magnetic field, light sensors. -
Page 19: Dimensions
DIMENSIONS... -
Page 20: Software
SOFTWARE: ESP32-POE2 uses same software as ESP32-POE which is very popular board and supported by • Espressif ESP-IDF • MicroPython • Arduino IDE • Esphome • PlatformIO In Arduino IDE make sure to enable the PSRAM in the board selector (when board is with ESP32-... -
Page 21: Document Revision History
Document Revision History Revision 2.3 August 2024 Additional notes about software setup for Ethernet and board selection Revision 2.2 May 2024 Fixed mistakes in GPIO descriptions Revision 2.2 May 2024 Fixed mistakes in GPIO descriptions Revision 2.1 May 2024 - Added dimensions - Spelling improvements Revision 2.0 May 2024 - Fixed wrong info about ESP32 module - the board is manufactured with WROVER module, not...
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