树莓派vcgencmd命令查看硬件状态
1.vcgencmd commands可看到vcgencmd可接的指令
2.在python中读取树莓派cpu温度
因为os.popen返回的是一个文件,因此要用readline()进行文件的读取
print(os.popen('vcgencmd measure_temp').readline())
也可用replace函数使得返回一个温度数值
import os
rec = os.popen('vcgencmd measure_temp').readline()
print(rec.replace("temp=","").replace("'C\n",""))