Hi
for board Esp8266MOD-07 how can i program?
can i use ttl serial port? if yes which pins should i connect to which pins
I hope that you have an antenna for that ESP. I don't think that it will work without an external antenna.
The default pins for serial are pin 3 = RX0 and pin 1 = TX0.
Have you seen the beginner's guide to ESP8266?
What is going to communicate with the ESP?
Pictured is the ESP-07, and the long white square on the left is a ceramic 2.4Ghz aerial.
It also has a socket for an optional aerial.
The ESP-07S doesn't have that ceramic aerial, just the socket.
Leo..
Thanks, I did not know that. Apparently I have the -07S, then. I'll dig one out and look.
You can use the Serial port to upload a sketch, but observe the 3.3v logic levels on the RX pin. If the USB to TTL device uses 5v logic, use a voltage divider.
Since it is the same as any other ESP, you will need to make sure the EN & RST pins are pulled HIGH, and for uploading a sketch, that GPIO 0 is pulled LOW at boot.
Also GPIO 2 should not be pulled LOW nor GPIO 1 (TX), for the device to go into the proper boot mode.
You'll need one of these...
https://www.aliexpress.com/item/4001105371136.html
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