I made my own pcb but have err uart pin

Other Hardware 3rd Party Boards
1

I use to MCU is esp32-wroom-32d.
Uart is CP2102N-A01-GQFN28
uart tx -> esp32 tx
uart rx -> esp32 rx
connected. how to solve or is it solve?

2

You can modify the PCB by carefully cutting the traces with a scalpel, and then use a fine wire make the correct connections.

3

On the ESP32, just about any GPIO pin can be assigned as serial RX and TX pins, for any of the serial UARTs. Try reassigning the pins.

Example code:

//Serial port echo program, DEV MODULE selected for ESP32-CAM
// works as expected with UART2, RX=14, TX=15
// same for UART1

#include <HardwareSerial.h>
HardwareSerial SerialPort(1); // use UART1
void setup()  
{
  Serial.begin(115200);
  while (!Serial);
  Serial.println("Serial test");
  SerialPort.begin(115200, SERIAL_8N1, 14, 15); 
} 
void loop()  
{ 
  while (Serial.available()) {
    SerialPort.write(Serial.read());
  }
  while (SerialPort.available()) {
    Serial.write(SerialPort.read());
  }
}
4

Good day.
this code is working but error occurred while loading code from Arduino ide.

esptool.py v3.0-dev
Serial port COM5
Connecting........_____....._____....._____....._____....._____....._____.....____An error occurred while uploading the sketch

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header

i'm using

  SerialPort.begin(115200, SERIAL_8N1, 1, 3);
5

If the code cannot be uploaded, how can it be "working"?

Solve the upload problem first.

6

ı am getting data from SerialPort.print()

7

Fascinating. What program do you think is "printing"?

8

First of all, I swap the places of tx and rx on my test card. I'm uploading and testing the code. I included the serial.print() print command in the code and sent it inside my esp32 and tested it. I'm sorry for my bad english

9

Is the problem solved?

10

NO. I got the tx and rx setup right and uploaded the code, then placed the pins properly as I specified in Hardwareserial.
In .Serialport.begin() I see that I am printing from the Serial menu.
I can't upload code from Arduino ide while plugged into hardwareserial pins

11

Use the hardware serial pins for uploading, and a different serial port for printing.

12

You need to put the bootloader into serial upload mode. Tie GPIO0 to GND while resetting the processor by EN shortly to GND.

13

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