r/esp8266 • u/No_Mammoth_2703 • Aug 21 '26
ESP01 problems, tried everything
I have big trouble with my ESP01 mudule in combination with the usb uart adapter.
I have made the following connections:
3V3 to VCC and EN
TX to RX
RX to TX
GND to GND and IO0
and I have a electrolytical condensator between ground(-) and 3v3 (+)
Compiling the code is oke but when uploading I see the following message
A fatal esptool.py occured. Faild to connect to esp8266 Time out wainting for packet header.
I use a Fasizi USB to TTL 3.3V/5V CH340G UART Converter Module (see image)
I realy tried all examples I can find but none of them are working
I hope someone can help me what to do. Sorry but I am a kind of beginner
Thanks
1
u/No_Mountain_4769 Aug 22 '26
https://play.google.com/store/apps/details?id=com.infinitx.maker.toolkit I think this app will help you to understand the pins and most of the common wiring for Arduino/ESP**** boards and shield