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I'm working on Serial communication between the Raspberry Pi and the Arduino, with the Raspberry Pi serving as master. I connected, using a logic level shifter, Arduino's Rx (Software Serial was used for Arduino) to Raspberry Pi's Tx, and the Pi's Rx to the Arduino's Tx.

After this, I ran a code from the Arduino which would just send a number to the Pi, I ran the Python code below to basically read data received from the Arduino.

import serial
import time
from time import sleep

if name == 'main':
    ser = serial.Serial('/dev/ttyACM0', 38400, timeout = 100)
    ser.flush


while True:
    if ser.in_waiting > 0:
        line = ser.readline().decode('utf-8').rstrip()
        print(line, flush = True)
        if float(line) == 600:
            ser.write(b"200\n")

However, when I ran it, I just got the error that the ACM0 was not found in the directory. What was I supposed to do?

Thanos
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1 Answers1

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Your UART is more likely on /dev/ttys0. You can verify this by doing ls /dev/tty*

You also need to make sure (in raspi-config) that you have disabled the serial terminal, but make sure to leave the hardware enabled.

evildemonic
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