Luma.OLED github

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# 安装驱动
$ sudo apt install python-dev python-pip libfreetype6-dev libjpeg-dev build-essential libopenjp2-7 libtiff5
$ sudo -H pip install --upgrade luma.oled

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# -*- coding:UTF-8 -*-
from luma.core.interface.serial import i2c, spi
from luma.core.render import canvas
from luma.oled.device import ssd1306
import time,os,socket,fcntl,struct

def getHostIp():
 try:
 my = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
 my.connect((\'8.8.8.8\', 80))
 # ip = my.getsockname()[0]
 ipList = my.getsockname()
 finally:
 my.close()
 return ipList

# Return % of CPU used by user as a character string
def getCPUuse():
 return(str(os.popen(\"top -n1 | awk \'/Cpu\\(s\\):/ print $2 \'\").readline().strip()))

# Return CPU temperature as a character string
def getCPUtemperature():
 res = os.popen(\'vcgencmd measure_temp\').readline()
 return(res.replace(\"temp=\",\"\").replace(\"\'C\\n\",\"\"))

def getRAMinfo():
 p = os.popen(\'free\')
 i = 0
 while 1:
 i = i + 1
 line = p.readline()
 if i==2:
 return(line.split()[1:4])


def getDiskSpace():
 p = os.popen(\"df -h /\")
 i = 0
 while 1:
 i = i +1
 line = p.readline()
 if i==2:
 return(line.split()[1:5])

def ramTotal():
 return(round(int(getRAMinfo()[0]) / 1000,1))

def ramUsed():
 return(round(int(getRAMinfo()[1]) / 1000,1))

def ramFree():
 return(round(int(getRAMinfo()[3]) / 1000,1))


# 创建 IIC 设备
serial = i2c(port=1, address=0x3C)

# 如果使用 SPI，换成这个
# serial = spi(device=0, port=0)

# 创建屏幕的驱动实例
device = ssd1306(serial)

while True:
 with canvas(device) as draw:
 draw.rectangle(device.bounding_box, outline=\"white\", fill=\"black\")
 draw.text((18, 5), \"Hshen raspberry\" , fill=\"white\")
 draw.text((2, 14), \"CPU:\" + getCPUuse() , fill=\"white\")
 draw.text((62, 14), \"Temp:\" + getCPUtemperature() , fill=\"white\")
 draw.text((2, 23), \"RAM:\" + str(ramUsed()) + \"/\" + str(ramTotal()) , fill=\"white\")
 draw.text((2, 33), \"Disk:\" + str(getDiskSpace()[1]) + \"/\" + str(getDiskSpace()[0]) , fill=\"white\")
 draw.text((2, 42), \"ip:\" + getHostIp()[0] , fill=\"white\")
 draw.text((2, 52),time.strftime(\"%Y-%m-%d %H:%M:%S\", time.localtime()) , fill=\"white\")
 time.sleep(2)