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I have written a small program to communicate between RasPi and Arduino. I can send messages from the RasPi to the Arduino perfectly. The Arduino will read the incoming message, and respond appropriately. The problem occurs when the RasPi is reading the Arduino message.

The arduino is sending "2, 2, 'A', 'B', 'C', (crc)". I can confirm that by attaching a second arduino onto the rs485 network. Python reads this as random gibberish, and gives me this:

b'\xd5'
b'i'
b'\x8a'
b'j'
b'z'
b'\xf6'
b'T'
b'{'
b'\xf6'
b'\x8c'
b'\xe2'
b'\xfe'

Python Code (not the entire code, just what is relevant):

data = bytearray()
info = ord('A')
data.append(info)

sendMsg(2, len(data), data)
while(True):
  inByte = rs.read()
  print(inByte)
The Candy King
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1 Answers1

0

You need to decode data.

Try

inByte = rs.read().decode('utf-8')
Victor Tapia
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