ESP8266-01 serial Port error

[giants]

Hi there!
long time ago i buy a couple of ESP8266-01, now i try to program they. i made this programmer
https://www.electronicshub.org/diy-pcb- ... fi-module/
i think the mistake him made is connect tx with tx and rx with rx. My problem is when i try to use upycraft for download the new firmware i the program continus to tell me him can open the serial port i try with Thonny ide and i have the same problem. I use windows 10

Please some one can help me ?

Thank you
Sergio

[neveregret]

i think the mistake him made is connect tx with tx and rx with rx.

This isn't the problem. Because you are only coding ESP. My connection is (when I want to upload code to esp01) rx-rx ,tx-tx , chpd -3.3V to Arduino's 3.3 , gnd and gpıo pin to gnd. ( Arduino's reset pin to Arduino's gnd because I want to code esp01). When I upload the code I am cutting connection to 3.3V and reconnect 3.3V.That is how I adding code to esp01.

[giants]

Thanks for you help tondai i try and i tell you. I must hope in the dame Walter with upycraft

Sergio

[neveregret]

Thanks for you help tondai i try and i tell you. I must hope in the dame Walter with upycraft

Sergio

But as I said I am doing it with Arduino. In your case, I looked the link he is using Arduino IDE for programming too. You can do it with MicroPython too but I didn't try it with MicroPython.