用树莓派给智能手机发送推送通知(2)

# setup custom headers for authentication variables and content type
c.setopt(c.HTTPHEADER, ['x-instapush-appid: ' + appID,
'x-instapush-appsecret: ' + appSecret,
'Content-Type: application/json'])

# create a dictionary structure for the JSON data to post to Instapush
json_fields = {}

# setup JSON values
json_fields['event']=pushEvent
json_fields['trackers'] = {}
json_fields['trackers']['message']=pushMessage

postfields = json.dumps(json_fields)

# make sure to send the JSON with post
c.setopt(c.POSTFIELDS, postfields)

# set this so we can capture the resposne in our buffer
c.setopt(c.WRITEFUNCTION, buffer.write)

# uncomment to see the post that is sent
#c.setopt(c.VERBOSE, True)

# setup an indefinite loop that looks for the door to be opened / closed
while True:

# door open detected
GPIO.wait_for_edge(23, GPIO.RISING)
print("Door Opened!\n")

# in the door is opened, send the push request
c.perform()

# capture the response from the server
body= buffer.getvalue()

# print the response
print(body)

# reset the buffer
buffer.truncate(0)
buffer.seek(0)

# door closed detected
GPIO.wait_for_edge(23, GPIO.FALLING)
print("Door Closed!\n")

# cleanup
c.close()
GPIO.cleanup()

# -------------------- End doorSensor.py -------------------- #

Save the Python script on your Raspberry Pi.

将Python脚本保存到你的树莓派上。

运行Python应用

要测试是否能从树莓派上发送推送通知，先运行doorSensor.py应用。程序跑起来之后，将电磁感应门的传感器分开。你会看到树莓派的屏幕上会打印出一些内容。第一行就是运行程序的命令，而第二行就是当我们打开门的时候所打印的。紧跟着会打印出从InstaPush的API服务接收到的响应。

pi@raspberrypi ~ $ sudo python doorSensor.py

Door Opened!

{“msg”:”Notification Sent Successfully”,”error”:false,”status”:200}

Door Closed!

 获取推送通知

在你打开电磁门的1到2秒后，你应该在iOS或者Android设备上接收到推送通知。下图就是在我的三星Galaxy上所接收到的推送消息。iPhone上也工作的一样好。

怎样从Ubuntu安装树莓派系统( Raspbian “wheezy”) 

Raspberry Pi 树莓派上安装Weston

用于Raspberry Pi 的Linux 操作系统已经可用

Raspberry Pi（树莓派）试用小记

Raspberry Pi(树莓派)的安装、配置IP及软件源等入门

原文链接： Mike Haldas 翻译： 极客范 - 陈舸

译文链接：