Give me a solution for the esp01 response throught Micropython

[Jayakrishna112]

Checks

• I agree to follow the MicroPython Code of Conduct to ensure a safe and respectful space for everyone.

• I've searched for existing issues matching this bug, and didn't find any.

Port, board and/or hardware

Raspberry Pi Pico

MicroPython version

MicroPython v1.22.1 on 2024-01-05; Raspberry Pi Pico with RP2040

Reproduction

when i run this python code :

from machine import UART, Pin
import utime

esp = UART(0, baudrate=115200)

def send_at_command(cmd):
    esp.write(cmd)
    response = waitResp(esp)
    # print(response.decode())
    return response

def waitResp(uart, timeout=2000):
    prvMills = utime.ticks_ms()
    resp = b""
    while (utime.ticks_ms()-prvMills) < timeout:
        if uart.any():
            resp = b"".join([resp, uart.readline()])
    print("resp:")
    try:
        print(resp.decode())
    except UnicodeError:
        print("E:", resp)
    return resp

send_at_command(b'AT')

Expected behaviour

the output should be:

resp:
AT

OK

Observed behaviour

but giving only:

resp:
At

Additional Information

No, I've provided everything above.

[projectgus]

Hi @Jayakrishna112 ,

We converted this from an Issue to a Discussion as it's not a bug in MicroPython.

AT commands need to be ended with a newlines (return) character, either \r\n or \n. So try changing your function like this:

def send_at_command(cmd):
    esp.write(cmd)
    esp.write('\r\n')  # New line
   ... rest of function stays same

[Jayakrishna112]

It has worked