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WT32-ETH01 LAN 8720 RJ45 ESP32 wired Wireless-tag


Struggling to find some info / Arduino IDE examples for WT32-ETH01 Wireless-tag

if you know some examples / usefull info

share it ? https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/discussions


MY FTDI programmer is not always succesfull with programming = i used board 'ESP32 Dev Module' settings

STRANGE another same FTDI programmer is doing better with programming https://www.google.com/search?q=FTDI+programmer

NOW using a ESP-01 / ESP8266-01 female 8pin/2row-4pin programmer with ch340 chip https://www.google.com/search?q=ESP-01+CH340G

program = wt32-eth01 powerup with gpio0 pull to ground (better with 10k resistor?)

run / monitor == wt32-eth01 powerup = gpio0 NO connection to ground


programming mode = better put a resistor in IO0 to ground?

programming mode = better put a resistor in IO0 to ground?

If someone programs gpio0 as output and high when connected to ground blows the gpio0 pin?


program WT32-ETH01 with ESP-01 / ESP8266-01 programmer https://www.google.com/search?q=esp8266-01+programmer+ch340G

  • red 3.3 Volt
  • purple ground
  • white TX0
  • grey RX0
  • Connect programmer Gpio0 to WT32-ETH01 Gpio0
  • powerup with switch to PROG program == programming mode
  • powerup with switch to UART monitor == run / monitor mode

program WT32-ETH01 with ESP-01 / ESP8266-01 programmer https://www.google.com/search?q=esp8266-01+programmer+ch340G

  • lefttop---------3.3 Volt
  • leftbottom-----RX0
  • righttop-------TX0
  • rightbottom-----ground
  • Connect programmer Gpio0 to WT32-ETH01 Gpio0
  • powerup with switch to PROG program == programming mode
  • powerup with switch to UART monitor == run / monitor mode


poor documentation, why no mention of what is analog pins in pinout

chip used wt32-s1 http://www.wireless-tag.com/portfolio/wt32-s1/

more i/o info wt32-s1 https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/blob/main/WT32-S1-DataSheet-V1.1.pdf

schematic https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/blob/main/WT32_ETH01_V2.schematic.pdf


Arduino IDE WT32-ETH01 ino files on this github


things to try

test a rotary encoder, maybe use the 3 input only pins? (or maybe make a nano i2c rotary encoder)


Install the ESP32 Board in Arduino IDE in less than 1 minute (Win, Mac, Linux)


Less Wires => power over ethernet cable is not included on WT32-ETH01, but you can D.I.Y.

  • Do It YourSelf

10 Euro PoE power over ethernet injector https://www.google.com/search?q=PoE+injector

3 Euro PoE power over ethernet splitter 5v https://www.google.com/search?q=PoE+splitter+5v


replace the arduino mega with ethernetshield http://arduino.tk:8888/HC.htm?file=27-3-21.CSV

the mega2560 with uno/mega ethernetshield W5100 did not work with cheap longer ethernet cables

the WT32-ETH01 works with cheap longer ethernet cables


A Penny for Sharing My Thoughts?

www.paypal.me/LDijkman