-sharp coding=utf-8
import serial
cmd = [0xa5, 0x00, 0x09, 0x0a, 0xcc, 0x33, 0xc3, 0x3c, 0xa6]
with serial.Serial("/dev/ttyAMA0", 115200, timeout=1) as ser:
for i in cmd:
k = chr(i)
ser.write(k)
s = ser.read(10)
print(s)
since the bytes of Python3 is passed into str by Python2, why do I report an error after converting the last data to be sent into bytes in Python3?
chr gets the integer type.
I always change the number to a hexadecimal string and then send the data. All are sent ['a5pm]. This kind of.
I don't know if there is a better way.
import binascii
cmd = [0xa5, 0x00, 0x09, 0x0a, 0xcc, 0x33, 0xc3, 0x3c, 0xa6]
with serial.Serial('/dev/ttyAMA0', 115200, timeout=1) as ser:
for i in cmd:
k = hex(i)[2:]
if len(k) < 2:
k = '0' + k
ser.write(binascii.a2b_hex(k))
s = ser.read(10)
print(s)
Previous: F-string problem of python
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