ESP32-Stick

Introduction:

ESP32-Stick is a line of low-cost development boards for ESP32 with Ethernet support. The boards use LAN8720A chip for ethernet and CH340G USB-UART converter for communication with PC and programming. ESP32-Stick-PoE-P provides passive Power-Over-Ethernet support(9-57V) and Esp32-Stick-PoE-A is capable of working with Active Power-Over-Ethernet.Programming is performed via USB connector.

Features:

• ESP32-Wroom module.
• USB-C connector.
• 17 Pins are available.
• LAN8720A chip for Ethernet.
• LM2596HV for Passive POE(PoE-P).
• Si3404-A(PoE-A)
• CH340G USB-UART converter.
• USER-Led(GPIO2).
• Reset button and User button(GPIO0).
• Accepts power through:
  • USB
  • External source (3.3V-5V)
  • Passive POE(PoE-P)
  • Active POE(PoE-A)

Pinout and dimensions

Dimensions are the same:

Programming options:

Using vscode Platformio or Arduino IDE

Uploading example project:

For example projects go to https://github.com/allexoK/Esp32-Stick-Arduino-Examples , https://github.com/allexoK/Esp32-Stick-ESPHome-Examples and https://github.com/allexoK/Esp32-Stick-Platformio-Examples

Important Notice

There is no galvanic isolation, so the board should not be connected to POE while programming. While programming use non-POE cable and supply power via USB.

Schematics

Schematics can be found in HW/x/Vx/schematics

On PoE compatibility

• Esp32-Stick-PoE-A was tested to work with TR60A-POE-L(48V) from Microelectronics tech INC. and POE15F(48V) from Tenda.
• Esp32-Stick-PoE-P was tested to work with TR60A-POE-L(48V), POE15F(48V) , UBI-POE-24-1(24V), GP-B240-100(24V), GP-240-050(24V), GP-A240-050, APOE24V-1, UBI-POE-24-5
• One user reported problems with USW-Pro-24-POE (400W) switch. Perhaps some PoE incompatibility issues.

Troubleshooting Esp32-Stick-Boards

1. I am powering Esp32-Stick-PoE-A with PoE adapter and the power led is off:

   • Are you sure you are using 48V PoE adapter?
   • Are you using type B power adapter?(The power must be supplied via pins 4,5 and 7,8)?
   • Have you tried different adapter?
   • Try using shorter Ethernet cable, did it help?

2. I have a network connection problems:

   • Try using shorter Ethernet cable, did it help?