WT32-ETH01 ESP32 doesnt serially communicate

Other Hardware 3rd Party Boards
1

Hey!

Im trying to get my WT32-ETH01 to serially communicate.

Its quite strange as I can flash it with my current setup, im using a CP2102 USB to TTL.

Here is how I've got it plugged in:

WT32-ETH01=======CP2102
5V===============5V
GND=============GND
TX0==============RXD
RX0==============TXD

TX0 and RX0 according to the manual should be Serial. Here is my code:

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("ESP32 serial started!");

}

void loop()
{
Serial.println("ESP32 serial started!");
  }
2

TTL means 5V logic but the ESP32 isn't 5V tolerant. You might have fried the ESP pins.

3

WT32-ETH01 is 5V

4

No. You may power it with 5V but the signals are 3.3V, I cannot see a level converter that would change that for the ESP32.

5

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