Yeelink初步体验

时间：2023-03-10 02:03:32
Yeelink初步体验

环境

Qemu: 2.8.0
开发板：vexpress-ca9

概述

    前面的博文已经使我们的虚拟开发板具备了访问外网的目的，离物联网越来越近了。要玩物联网，Yeelink不得不说，它提供了云平台，可以将设备的数据上传到云端，也可以联网获得云端的数据，我们可以通过手机客户端或在网页端查看或修改，从而达到用手机客户端跟嵌入式设备通信的目的。
    下面我们实现一个非常简单的功能： 添加一个虚拟开关，通过Yeelink的手机客户端或在网页端可以查看和修改这个开端的状态，而我们的板子会每隔2s联网读取一次这个虚拟开关的状态，最后板子根据开关的状态打印不同的提示。

正文

一、首先登陆Yeelink官网，手动添加一个device，然后在该device下面再创建一个sensor用来代表虚拟开关。
Yeelink初步体验
二、为Python添加requests模块
Requests 是用Python语言编写，基于urllib，采用Apache2 Licensed开源协议的HTTP库。它比urllib更加方便，可以节约我们大量的工作，完全满足HTTP测试需求。
1、下载requests模块
解压后：
$ls

HISTORY.rst  NOTICE      requests/           setup.cfg

LICENSE      PKG-INFO    requests.egg-info/  setup.py*

MANIFEST.in  README.rst  requirements.txt    test_requests.py*

其中的requests既可以用于Python2也可以用于Python3，然后将这个requests目录拷贝到对应Python的site-packages下面。

在导入requests模块的时候，会提示找不到zlib模块。
2、重新编译Python，支持zlib
  • 编译zlib：
 #!/bin/bash

 export CC=arm-none-linux-gnueabi-gcc

 ../zlib-1.2./configure \

     --prefix=`pwd`

修改Makefile，修改AR和RANLIB如下：

AR=arm-none-linux-gnueabi-ar

RANLIB=arm-none-linux-gnueabi-ranlib
然后执行make && make install， 安装完成之后不要忘了把lib下的so和include下的头文件拷贝到板子上。
  • 编译Python3：
 #!/bin/bash

 ../Python-3.6./configure \

     --host=arm-none-linux-gnueabi \

     --build=armv7 \

     --prefix=`pwd` \

     --enable-ipv6 \

     --enable-shared \

     ac_cv_file__dev_ptmx="yes" \

     ac_cv_file__dev_ptc="no" \

     LDFLAGS="-L/home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Termcap/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/lib"\

     CPPFLAGS="-I/home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/include \

     -I/home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/include \

     -I/home/pengdonglin/disk_ext/Third_Part/Termcap/aarch32/include \

     -I/home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/include"\

     LDLAST="-L/home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Termcap/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/lib"

 make -j4

 make install

安装完成后，也可以直接将lib/python3.6/lib-dynload/zlib.cpython-36m-arm-linux-gnueabi.so拷贝到板子上面的/usr/lib/python3.6/lib-dynload/下面即可， 而不必全部更新

  • 编译Python2：
mk1_conf.sh:
 #!/bin/bash

 ../Python-2.7./configure --prefix=`pwd` \

     --host=arm-none-linux-gnueabi \

     --build=x86_64-linux-gnu \

     --enable-ipv6 \

     --enable-shared \

     ac_cv_file__dev_ptmx="yes" \

     ac_cv_file__dev_ptc="no" \

     LDFLAGS="-L/home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Termcap/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/lib"\

     CPPFLAGS="-I/home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/include \

     -I/home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/include \

     -I/home/pengdonglin/disk_ext/Third_Part/Termcap/aarch32/include \

     -I/home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/include"\

     LDLAST="-L/home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Termcap/aarch32/lib \

     -L/home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/lib"\
mk2_make.sh:
 #!/bin/bash

 make HOSTPYTHON=../x86_64/python \

     HOSTPGEN=../x86_64/Parser/pgen \

     BLDSHARED="arm-none-linux-gnueabi-gcc -shared" \

     CROSS_COMPILE=arm-none-linux-gnueabi- \

     CROSS_COMPILE_TARGET=yes \

     HOSTARCH=arm-none-linux-gnueabi \

     BUILDARCH=x86_64-linux-gnu \

     -j4
mk3_install.sh:
 #!/bin/bash

 make install HOSTPYTHON=../x86_64/python \

     BLDSHARED="arm-none-linux-gnueabi-gcc -shared" \

     CROSS_COMPILE=arm-none-linux-gnueabi- \

     CROSS_COMPILE_TARGET=yes \

     prefix=`pwd`

安装完成后，也可以直接将lib/python2.7/lib-dynload/zlib.so拷贝到开发板的/usr/lib/python2.7/lib-dynload/下面，而不用全部更新

  • 然后修改mk_ramdisk.sh:
 #!/bin/bash

 thiry_part=/home/pengdonglin/disk_ext/Third_Part/

 cross_compile=/home/pengdonglin/disk_ext/Cross_Compiler/aarch32/

 sudo rm -rf rootfs

 sudo rm -rf tmpfs

 sudo rm -rf ramdisk*

 sudo losetup -d /dev/loop0

 sudo losetup /dev/loop0 ./fs_vexpress_1G.img

 sudo partprobe /dev/loop0

 sudo mkdir rootfs

 sudo cp ${thiry_part}/Busybox/aarch32/_install/*  rootfs/ -raf

 sudo mkdir -p rootfs/proc/

 sudo mkdir -p rootfs/sys/

 sudo mkdir -p rootfs/tmp/

 sudo mkdir -p rootfs/root/

 sudo mkdir -p rootfs/var/

 sudo mkdir -p rootfs/mnt/

 sudo cp etc rootfs/ -arf

 sudo cp -arf ${cross_compile}/arm-2014.05/arm-none-linux-gnueabi/libc/lib rootfs/

 #Python3

 sudo mkdir -p rootfs/usr

 pushd rootfs/usr

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python3/aarch32/bin .

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python3/aarch32/lib .

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python3/aarch32/include .

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python3/aarch32/share .

 #Python2

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python2/aarch32/bin .

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python2/aarch32/lib .

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python2/aarch32/include .

 sudo cp  -raf /home/pengdonglin/disk_ext/Python/Python2/aarch32/share .

 popd

 #SQlite3

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/bin/* rootfs/bin/

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/include/* rootfs/include/

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/lib/* rootfs/lib/

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/SQlite3/aarch32/share/* rootfs/usr/share

 #Readline

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/include/ rootfs/include/

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/Readline/aarch32/lib/* rootfs/lib/

 #Zlib

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/include/* rootfs/include/

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/Zlib/aarch32/lib/* rootfs/lib/

 #BeautifulSoup4

 sudo cp -raf /home/pengdonglin/disk_ext/Python/BeautifulSoup4/beautifulsoup4-4.5.3/bs4  rootfs/usr/lib/python2.7/site-packages

 sudo cp -raf /home/pengdonglin/disk_ext/Python/BeautifulSoup4/beautifulsoup4-4.5.3/py3k/bs4  rootfs/usr/lib/python3.6/site-packages

 #Requests

 sudo cp -raf /home/pengdonglin/disk_ext/Python/Requests/requests-2.3.0/requests  rootfs/usr/lib/python2.7/site-packages

 sudo cp -raf /home/pengdonglin/disk_ext/Python/Requests/requests-2.3.0/requests  rootfs/usr/lib/python3.6/site-packages

 #Boa

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/WebServer/Boa/boa-0.94.13/src/boa rootfs/bin

 sudo mkdir -p rootfs/usr/lib/boa

 sudo cp -raf /home/pengdonglin/disk_ext/Third_Part/WebServer/Boa/boa-0.94.13/src/boa_indexer rootfs/usr/lib/boa

 sudo mkdir -p rootfs/var/www/cgi-bin

 sudo mkdir -p rootfs/var/log/boa

 sudo rm -rf rootfs/lib/*.a

 sudo arm-none-linux-gnueabi-strip rootfs/lib/* rootfs/bin/*

 sudo arm-none-linux-gnueabi-strip rootfs/usr/lib/boa/*

 sudo arm-none-linux-gnueabi-strip rootfs/usr/lib/*

 sudo arm-none-linux-gnueabi-strip rootfs/usr/bin/*

 sudo arm-none-linux-gnueabi-strip rootfs/bin/*

 sudo mkdir -p rootfs/dev/

 sudo mknod rootfs/dev/tty1 c 4 1

 sudo mknod rootfs/dev/tty2 c 4 2

 sudo mknod rootfs/dev/tty3 c 4 3

 sudo mknod rootfs/dev/tty4 c 4 4

 sudo mknod rootfs/dev/console c 5 1

 sudo mknod rootfs/dev/null c 1 3

 sudo mkdir ./tmpfs/

 sudo mount -t ext4 /dev/loop0p1 ./tmpfs/

 sudo rm -rf ./tmpfs/*

 sudo cp -raf rootfs/* ./tmpfs/

 sleep 2

 sudo umount ./tmpfs/

 sudo losetup -d /dev/loop0

3、测试

 [root@vexpress ]# python3

 Python 3.6. (default, May   , ::)

 [GCC 4.8.  (prerelease)] on linux

 Type "help", "copyright", "credits" or "license" for more information.

 >>> import requests

 >>>

 [root@vexpress ]# python2

 Python 2.7. (default, May   , ::)

 [GCC 4.8.  (prerelease)] on linux2

 Type "help", "copyright", "credits" or "license" for more information.

 >>> import requests

 >>>
三、编写python程序获取开关状态
get_switch.py2:
 #!/usr/bin/env python2

 import requests

 import time

 apiurl = "http://api.yeelink.net/v1.0/device/7445/sensor/405914/datapoints"

 apiheaders = {'U-ApiKey':'3957bd54eaddd2fda1f35841d52776d9'}

 while True:

     r = requests.get(apiurl, headers=apiheaders)

     print(r.text)

     sw = r.json()

     if sw['value'] == 1:

         print("Switch On")

     elif sw['value'] == 0:

         print("Switch Off")

     time.sleep(2)
get_switch.py3:
 #!/usr/bin/env python3

 import requests

 import time

 apiurl = "http://api.yeelink.net/v1.0/device/7445/sensor/405914/datapoints"

 apiheaders = {'U-ApiKey':'3957bd54eaddd2fda1f35841d52776d9'}

 while True:

     r = requests.get(apiurl, headers=apiheaders)

     print(r.text)

     sw = r.json()

     if sw['value'] == 1:

         print("Switch On")

     elif sw['value'] == 0:

         print("Switch Off")

     time.sleep(2)
四、测试
运行测试程序，然后在手机客户端或在网页端修改开关的状态，测试程序会联网获得开关的状态：
Yeelink初步体验
完。

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