2024-05-20 06:04 AM - last edited on 2024-06-27 05:44 AM by STTwo-32
Hello everyone,
I'm currently attempting to connect the STM32F769I-DISCO to a WiFi network using an ESP8266-01 module. I've enabled UART5 and assigned it to the ESP's RX and TX pins, as specified in the STM32F7 datasheet, and I've supplied power to the CH_PD pin on the ESP8266. However, I'm encountering an issue where I'm not receiving any responses from the ESP8266 in the debugger console.
So my questions are:
1. Am I using the correct code to activate and connect the ESP8266 to WiFi?
2. How can I determine if the ESP8266 is sending responses once it's successfully connected?
Here's the program that I've used:
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Any insights or suggestions would be greatly appreciated.
Thank you,
BR,
Nourhene.
2024-05-20 06:17 AM
hi
IDK , why my previous message to you deleted ..
I.N
2024-05-20 06:22 AM - edited 2024-05-20 06:26 AM
Please use this button to properly post source code:
Before trying to do this in embedded code, are you able to communicate with the ESP using a terminal app on a PC?
You should use this first to gain understanding of the commands you need, and the responses to expect.
With your STM32 code, have you connected it to a terminal app on a PC, and verified that it is actually sending the correct commands, and accepts expected responses? Be sure to check it with ERROR responses, too!
Some tips here on debugging serial comms:
https://www.avrfreaks.net/s/topic/a5C3l000000UaO0EAK/t153662?comment=P-1375047
@NB1 wrote:// Wait for ESP8266 to initialize (adjust delay as needed)HAL_Delay(1000);
It's best to avoid the use of arbitrary delays - does the ESP not provide some positive indication when it's ready?
This is especially true with AT commands: do not rely upon arbitrary, "blind" delays - always handle the reply from the module.
This is probably the commonest mistake in AT Command interfaces; eg,
https://www.avrfreaks.net/s/topic/a5C3l000000UYp7EAG/t147655?comment=P-1409865
EDIT:
@NB1 wrote:I'm not receiving any responses from the ESP8266 in the debugger console.
Are you talking about these:
@NB1 wrote:// Print received responseprintf("Received response: %s\n", rxData); // Add this line to print the received response.
Are you sure your printf implementation is working? How have you proved it?
2024-05-20 10:35 AM
Hi
I have comprehensive esp8266 config utility made by me in vb.net long back.
Contact privately coz my message in forum getting deleted several times.
Regards
I.N