LAN8720
LAN8720 Ethernet with ESP Setup
- Make menu config animation see here.
http://www.electrodragon.com/w/File:Makemenu_lan8720.gif Jumper setup
- ESP32 IO0 to CLK pin - default closed (connected)
- 10K pull up to CLK pin - default open
- ESP32 IO17 three-way jumper - default open (not used)
| Description | Connection | Devkitc-left side | Devkitc-right side | Connection | Description |
|---|---|---|---|---|---|
| - | 3.3V | 3.3V | GND2 | - | - |
| - | - | EN | IO23 | MDC | - |
| - | - | SVP | IO22 | TXD1 | - |
| - | - | SVN | TXD0 | - | - |
| - | - | IO34 | RXD0 | - | - |
| - | - | IO35 | IO21 | TX_EN | - |
| - | - | IO32 | GND3 | GND | - |
| - | - | IO33 | IO19 | TXD0 | - |
| - | RXD0 | IO25 | IO18 | MDIO | - |
| - | RXD1 | IO26 | IO5 | - | - |
| - | CRS_DV | IO27 | IO17 | PHY_PWR | control the ON/OFF of the crystal power |
| - | - | IO14 | IO16 | - | - |
| - | - | IO12 | IO4 | - | - |
| - | GND | GND | IO0 | CLK | crystal clock pin |
| - | - | IO13 | IO2 | - | - |
| - | - | SD2 | IO15 | - | - |
| - | - | SD3 | SD1 | - | - |
| - | - | CMD | SD0 | - | - |
| - | - | 5V | CLK | - | - |
Schematic
LAN8720A SCH
LAN8720 for ESP32 SCH
Demo code
- Please find in our private git - https://github.com/Edragon/arduino-proj
Important Note
- If you can not get MAC or IP address, please use a new better quality ethernet cable, it is a problem of the cable.
Demo video
- video 1 - Demo video using with ESP32 please see here.
- video 2 - use with arduino - https://fb.watch/8irqBDxpXb/