Rx/Tx login issue

Question

I tried to ommunication between TX/RX to make some test and I received the following response:

raspberrypi login : Raspbian GNU/Linux 8 raspberrypi ttyAMA0

Can you please explain to me the problem and if possible how to solve it :). Thanks a lot

The python code is:

#!/usr/bin/python
import serial
import time

ser=serial('/dev/ttyAMA0',9600)

While True:
    ser.write('x')
    received=ser.readline().strip()
    print(received)
    time.sleep(2)

Have you disabled the "serial console" in `sudo raspi-config` or with the preferences GUI dialog? — Dougie, Mar 24 '20 at 16:16
Does this answer your question? [SIM900A with Raspberry Pi 3 Weird Error and Behaviour](https://raspberrypi.stackexchange.com/questions/107553/sim900a-with-raspberry-pi-3-weird-error-and-behaviour) — Dmitry Grigoryev, Mar 27 '20 at 13:51

score 0 · Answer 1 · answered May 28 '16 at 17:59

0

It's no a problem. You can log in via the serial link.

If you don't want this behaviour then disable it by using the advanced options of raspi-config.

sudo raspi-config

answered May 28 '16 at 17:59

joan

67,803
5
67
102

Thanks Joan. How to login via the serial link ?! – Nassim May 28 '16 at 18:11
I thought you were complaining about the message. I've told you what to do to stop that message. Run `sudo raspi-config` and disable serial login in the advanced options. – joan May 28 '16 at 18:15
I disabled the login. however after launching the script an error appeared (couldn't sopen serial /dev/ttyAMA0). Anything i should configure it differently ? – Nassim May 28 '16 at 19:51
@Nassim That sounds like a new question. – joan May 28 '16 at 19:54

score 0 · Answer 2 · edited Apr 13 '17 at 12:56

0

/dev/ttyAMA0 is connected to Bluetooth (unless you change it).

See How-do-i-make-serial-work-on-the-raspberry-pi3

edited Apr 13 '17 at 12:56

Community

1

answered May 28 '16 at 22:56

Milliways

54,718
26
92
182

Rx/Tx login issue

2 Answers2