WT32-ETH01-LAN-8720-RJ45-

WT32-ETH01 LAN 8720 RJ45 ESP32 wired Wireless-tag

• WT32-ETH01 +/-7 Dollar

• • ESP32 with Ethernet jack https://www.google.com/search?q=WT32-ETH01

• Buy it from manufacturer

• 1 Piece or a Gazillion

• • http://www.wireless-tag.com/portfolio/wt32-eth01/
• • https://wireless-tag.en.alibaba.com/

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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

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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

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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?

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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

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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

• usb to esp-01 adapter programmer
• Hmmm, looks like no resistor switch gpio0 to ground
• https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/blob/main/USB to ESP-01 Adapter schematic.pdf

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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

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Arduino IDE WT32-ETH01 ino files on this github

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things to try

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

• get some more i/o

• i2c PCF8574 i/o expander https://www.google.com/search?q=PCF8574+IO+expander

• PCF8574 rotary encoder https://youtu.be/GqKjo0lKVVk

• Arduino IDE examples

• connect to google.com and display HTML source of google.com on serial monitor

• • https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/blob/main/wt32-eth01-wired-google.com-test.ino

• example DHCP webserver with AJAX (comment/uncomment a line and static IP also Possible)

• • https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/blob/main/WT32-ETH01-wired-webserver-dhcp.ino

• example i2c connection == Done & tested

• • https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/blob/main/WT32-ETH01-i2c-BME280-DS3231.ino

• test example howto connect i2c and SD card reader/writer

• • https://github.com/ldijkman/WT32-ETH01-LAN-8720-RJ45-/blob/main/not-tested-code/sdcard-i2c-bme280-ds3231-wt32-eth01.ino

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

• https://youtu.be/mBaS3YnqDaU
• • https://randomnerdtutorials.com/installing-the-esp32-board-in-arduino-ide-windows-instructions/
• • • https://dl.espressif.com/dl/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json
• Board settings i used (Arduino IDE Raspberry Pi LINUX Version)

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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

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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

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A Penny for Sharing My Thoughts?

www.paypal.me/LDijkman