Chao at 11:03, 24 April 2023

2023-04-24T11:03:18Z

New page

== 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)

{| class="wikitable sortable" align = "right"
|-
! 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 ==
<gallery>
File:LAN8720A_SCH.png | LAN8720A SCH
File:LAN8720_for_ESP32.png | LAN8720 for ESP32 SCH
</gallery>

== 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/

[[category:Ethernet]]

LAN8720 - Revision history

Chao at 11:03, 24 April 2023