ldijkman / wt32-eth01-lan-8720-rj45-

WT32-ETH01 LAN 8720 RJ45 wired Wireless-tag

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%20to%20ESP-01%20Adapter%20schematic.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

wt32-eth01-lan-8720-rj45-'s Issues

Analog input

hello
This module has analog input ?

thanks a lot

cant flash wt32

Hi, I cant figure out how to flash code to the WT32-ETH01. Is there someone who is able to help me get started?

No default MOSI pin (IO13/IO23) exposed, so no 80mhz spi?

I’m wondering why no default MOSI pin is exposed and if would limit the spi speed, because the need to use not spi matrix pins.

link to note: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/spi_master.html#_CPPv418spi_bus_add_device17spi_host_device_tPK29spi_device_interface_config_tP19spi_device_handle_t

Schematic / Pinout mismatch for IO35 / IO5 and RXD2

Q: Which is the correct ESP32 IO that has a pad between IO4 and IO12?

The schematic shows IO35 is used for RXD2, and that IO5 is brought out to J9/J11 (other side's header pads). The programming example also shows this pinout. Thus, exposed pins in order would include IO2, IO4, IO5, IO12, ...

However, the pinout diagram indicates that the exposed pins are IO2, IO4, IO35, IO12, ... This matches the silkscreen on v1.2 devices.

Thank you!