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Burning ESP8266 without USB

Q&A Forum › Category: ESP8266 › Burning ESP8266 without USB
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Suhaimi asked 4 years ago

I want to use a ESP8266 chip alone, without the whole board for a project, and put it on my own PCB.
If the board is already soldered onto the board, is there any way i can burn a new program into that  chip?
What kind of wiring I need to make?
 
I am really thankful if there is any suggestion, as it will help me in reducing PCB size. There are lots of ESP8266 has already soldered onto the board. Need to change another program.

1 Answers
0 Vote Up Vote Down
Rui Santos Staff answered 4 years ago

Yes, you can burn any program to the ESP8266 chip alone. Basically you have to connect GPIO 0 to GND during power to boot the ESP into flashing mode. Then, if you connect an FTDI programmer to the TX and RX pins of the ESP chip, you can upload a custom code/firmware…
I hope that helps,
Rui

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