How to transform Serial Data from digital inclinometer to readable format in Python?

Question

I bought a device (inclinometer) that produces data which I want to attach to my post in a readable format. How can I do this using python?

I have the following script:

import binascii
import serial

ser = serial.Serial('COM1', 9600)
s = ser.read()
hex_string = binascii.hexlify(s).decode('utf-8')
print(hex_string)

I have added an example of how the inclinometer is sending data over COM port.

Answer 1

由于并非所有信息都能提供最佳答案，因此需要做出一些假设以缩小可能的答案。

在该示例中，假设倾斜仪给出的数据流不仅仅包括x轴和y轴协调。因此，引入了while循环。内置倾斜度计还会有一个数据请求暂停，以防止运行此python脚本（raspberry-pi？）的目标设备中发生数据泛滥。

也许此脚本用于多处理模式？然后，您可能想包括一个步骤，将当前的x，y坐标与定义的参考值进行比较（不包括在内，但应在while循环的结尾）。

import binascii
import serial
import time

set_sloop   = 0    # control flag for result
loop_checks = 0    # control flag to prevent data-flooding.

ser = serial.Serial('COM1', 9600)

while set_sloop == 0:                          # get hex-data from device every 2 seconds (see pause interval)

    s = ser.read()
    hex_string = binascii.hexlify(s).decode('utf-8')

    print(hex_string)

    if str(hex_string[0:9]) == '680D008400':   # used (x,y) string identifier based on example 0x84.
        xh = hex_string[10:13]
        yh = hex_string[16:19]
        x  = '%s.%s' % xh[0:1], xh[2:3]
        y  = '%s.%s' % yh[0:1], yh[2:3]
        xt = 'x = %s deg' % x
        yt = 'y = %s deg' % y

        print (xt, yt)
        set_sloop = 1

    loop_checks += 1

    if loop_checks == 10:
        time.sleep(2)    # pause interval: wait 2 seconds before requesting new data.
        loop_checks = 0


print ('got inclination: (%s , %s) deg' % x, y)


 # ... remaining code to "auto-post inclination" goes here ...

  

注意：考虑到搜索字符串'680D008400'并不完全符合示例中给出的描述。缺少一组数字。公司文字中有错字？