ESP32使用MicroPython連接的NetOne平臺傳遞數據，MQTT控制，Ajax-web控制

先請出豬角，手上這塊開發板是ESP32 DevKit V1，看下擴展引腳：燒錄flash：esp32-idf3-20191220-v1.12.bin

esp32的io使用需要注意，有些io只能做輸入的，下面做簡要的設計說明

IO數量：34個IO
IO編號：0-19, 21-23, 25-27, 32-39
其中GPIO 34-39 僅用作輸入管腳
IO13和IO14是JLINK調試接口，使用時需要刻意初始化一下

1. Strapping引腳
ESP32 共有5 個Strapping 管腳,分別爲：
MTDI/GPIO12：內部下拉
GPIO0：內部上拉
GPIO2：內部下拉
MTDO/GPIO15：內部上拉
GPIO5：內部上拉
系統復位時，這些管腳的值被保存到寄存器。軟件可以讀取寄存器“GPIO_STRAPPING”中這5 個位的值。該寄存器值一直保持到掉電。
完成復位後，這些管腳被當做普通GPIO 使用。
因此在系統復位時，要處理好這些引腳，要給一個確定的值

2. 專用spi flash引腳
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
一般在模組內部用於外接SPI flash。

Note that GPIO6-11 are usually used for SPI flash.

3. 只具有輸入功能的引腳
GPIO34
GPIO35
GPIO36
GPIO37
GPIO38
GPIO39
以上管腳只具有輸入功能，沒有上拉下拉選項

ESP32採用Xtensa雙核32位LX6,最大閃存16MB
板上時鐘：40 MHz 晶振,工作電壓/供電電壓：2.7V ~ 3.6,工作電流平均：80 mA,供電電流最小：500 mA

MicroPython中使用GPIO口主要是用到了 machine 模塊中的 Pin 類，具體函數說明如下：

class machine.Pin(id, mode=-1, pull=-1, *, value)
構造函數，用於聲明與初始化GPIO口對象：
id：GPIO編號，如使用GPIO13則此處填寫13；
mode：模式，可選 Pin.IN 、 Pin.OUT 、 Pin.OPEN_DRAIN ；
pull：使用內部上下拉電阻，可選 None 、 Pin.PULL_UP 、 Pin.PULL_DOWN ，部分IO口可以設置爲 PULL_HOLD 模式，可以在深度睡眠時保持其狀態；
value：輸出或開漏模式下端口值，0爲低(off)、1爲高(on)；
Pin.init(mode=-1, pull=-1, *, value, drive, alt)
重新初始化GPIO口；
Pin.value([x])
不填寫參數使用時返回端口的值，參數填寫0(False)、1(True)改變端口值；
Pin.on()
輸出或開漏模式下將端口設置爲高；
Pin.off()
輸出或開漏模式下將端口設置爲低；
Pin.irq(handler=None, trigger=(Pin.IRQ_FALLING | Pin.IRQ_RISING), *,wake=None)
用於設置外部中斷：
handler：中斷觸發回調函數；
trigger：中高端觸發源可選下降沿上升沿或是一起使用；
wake：使能外部中斷喚醒睡眠，可設置爲 WAKE_LOW 、WAKE_LOW 、 WAKE_HIGH ；

NOPULL，PULLUP，PULLDOWN三種模式的理解

PULLUP＆PULLDOWN針對輸入模式，比如我們一個單片機的I / O腳接一個按鍵的左端，按鍵的右端接正電源，那麼我們就要設置I / O腳爲下拉模式，因爲這樣才能使得按鍵按下去的時候，能把I / O腳拉高，不然設置上拉模式的話，即按鍵的功能等於擺設。同理，如果按鍵另一端接地，我們就要設置爲上拉模式了。

NOPULL針對於輸出模式，輸出高電平低電平信號d等 。
 

使用HTTP POST發送數據到oneNet

一. 註冊oneNet網站，https://open.iot.10086.cn/進入開發者中心
二. 創建設備,記住你的API_KEY和DEVICE_ID，替換程序中的對應變量

三. 將uPy_Lib中的urequests.py拖動到lib目錄下
四. 運行這個代碼，就可以上傳溫度啦（替換你的API_KEY和DEVICE_ID哦，還要替換您路由器的SSID和PASSWD）

登錄NetOne平臺查看數據點

參考代碼如下：

import urequests
import network
import socket
import time
import json

DEVICE_ID='4232735'
API_KEY='u69BKBvvXlfdsgfdfaAdfdfdFA='

SSID="wcchhd"
PASSWORD="123456789"
wlan=None
s=None

def connectWifi(ssid,passwd):
    global wlan #函數內部對外部的變量進行操作
    wlan=network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.disconnect()
    wlan.connect(ssid,passwd)
    while(wlan.ifconfig()[0]=='0.0.0.0'):
        time.sleep(1)
    return True
 
def http_put_data(data):
    url='http://api.heclouds.com/devices/'+DEVICE_ID+'/datapoints'
    values={'datastreams':[{"id":"temperature","datapoints":[{"value":data}]}]}
    jdata = json.dumps(values)                 
    r=urequests.post(url,data=jdata,headers={"api-key":API_KEY})
    return r
try:
    connectWifi(SSID,PASSWORD)
    rsp = http_put_data(86)
    print(rsp.json())
except:
    wlan.disconnect()
    wlan.active(False)

實例1：溫溼度傳感數據HTTP-POST上傳

import urequests
import network
import socket
import time
import json
import dht  #溫溼度模塊
from machine import Pin
 
DEVICE_ID='588083706'　　#netone設備id
API_KEY='ZS=O=Jy9KIswEsHUPyZWWHdv0Q8='  #api-key

SSID="wailaizhu"
PASSWORD="123456789"

wlan=None

s=None

dht11 = dht.DHT11(Pin(15))  #dht的gpio引腳

def connectWifi(ssid,passwd):

    global wlan #函數內部對外部的變量進行操作
    wlan=network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.disconnect()
    wlan.connect(ssid,passwd)
    while(wlan.ifconfig()[0]=='0.0.0.0'):
        time.sleep(1)
    return True
 
def http_put_data_wd(data):   #傳遞溫度
    url='http://api.heclouds.com/devices/'+DEVICE_ID+'/datapoints'
    values={'datastreams':[{"id":'temperature',"datapoints":[{"value":data}]}]}
    jdata = json.dumps(values) 
    
    r=urequests.post(url,data=jdata,headers={"api-key":API_KEY})
    return r

def http_put_data_sd(data): #傳遞溼度
    url='http://api.heclouds.com/devices/'+DEVICE_ID+'/datapoints'
    values={'datastreams':[{"id":'humidity',"datapoints":[{"value":data}]}]}
    jdata = json.dumps(values) 
    
    r=urequests.post(url,data=jdata,headers={"api-key":API_KEY})
    return r



def up_data():

  dht11.measure() #獲取傳感數據
  wd = dht11.temperature()
  sd = dht11.humidity()

  http_put_data_wd(wd)
  time.sleep(30)
  http_put_data_sd(sd)
  time.sleep(30)

while True:
   try:
     connectWifi(SSID,PASSWORD)
     up_data()
     time.sleep(30)
   except:
     wlan.disconnect()
     wlan.active(False)

實例２：使用mqtt協議控制LED：

a.在netone註冊並增加mqtt設備

b.esp32連網可以寫在boot.py或主程序中自便，本例爲結構清淅分開simple.py，boot.py，mqtt.py，main.py內容如下：

umqtt模塊的simple.py

import usocket as socket
import ustruct as struct
#from ubinascii import hexlify

class MQTTException(Exception):
    pass

class MQTTClient:

  def __init__(self, client_id, server, port=0, user=None, password=None, keepalive=0,ssl=False, ssl_params={}):
    if port == 0:
      port = 8883 if ssl else 1883
    self.client_id = client_id
    self.sock = None
    self.addr = socket.getaddrinfo(server, port)[0][-1]
    self.ssl = ssl
    self.ssl_params = ssl_params
    self.pid = 0
    self.cb = None
    self.user = user
    self.pswd = password
    self.keepalive = keepalive
    self.lw_topic = None
    self.lw_msg = None
    self.lw_qos = 0
    self.lw_retain = False

  def _send_str(self, s):
    self.sock.write(struct.pack("!H", len(s)))
    self.sock.write(s)

  def _recv_len(self):
    n = 0
    sh = 0
    while 1:
      b = self.sock.read(1)[0]
      n |= (b & 0x7f) << sh
      if not b & 0x80:
        return n
      sh += 7

  def set_callback(self, f):
    self.cb = f

  def set_last_will(self, topic, msg, retain=False, qos=0):
    assert 0 <= qos <= 2
    assert topic
    self.lw_topic = topic
    self.lw_msg = msg
    self.lw_qos = qos
    self.lw_retain = retain

  def connect(self, clean_session=True):
    self.sock = socket.socket()
    self.sock.connect(self.addr)
    if self.ssl:
      import ussl
      self.sock = ussl.wrap_socket(self.sock, **self.ssl_params)
    msg = bytearray(b"\x10\0\0\x04MQTT\x04\x02\0\0")
    msg[1] = 10 + 2 + len(self.client_id)
    msg[9] = clean_session << 1
    if self.user is not None:
      msg[1] += 2 + len(self.user) + 2 + len(self.pswd)
      msg[9] |= 0xC0
    if self.keepalive:
      assert self.keepalive < 65536
      msg[10] |= self.keepalive >> 8
      msg[11] |= self.keepalive & 0x00FF
    if self.lw_topic:
      msg[1] += 2 + len(self.lw_topic) + 2 + len(self.lw_msg)
      msg[9] |= 0x4 | (self.lw_qos & 0x1) << 3 | (self.lw_qos & 0x2) << 3
      msg[9] |= self.lw_retain << 5
    self.sock.write(msg)
    #print(hex(len(msg)), hexlify(msg, ":"))
    self._send_str(self.client_id)
    if self.lw_topic:
      self._send_str(self.lw_topic)
      self._send_str(self.lw_msg)
    if self.user is not None:
      self._send_str(self.user)
      self._send_str(self.pswd)
    resp = self.sock.read(4)
    assert resp[0] == 0x20 and resp[1] == 0x02
    if resp[3] != 0:
      raise MQTTException(resp[3])
    return resp[2] & 1

  def disconnect(self):
    self.sock.write(b"\xe0\0")
    self.sock.close()

  def ping(self):
    self.sock.write(b"\xc0\0")

  def publish(self, topic, msg, retain=False, qos=0):
    pkt = bytearray(b"\x30\0\0\0")
    pkt[0] |= qos << 1 | retain
    sz = 2 + len(topic) + len(msg)
    if qos > 0:
      sz += 2
    assert sz < 2097152
    i = 1
    while sz > 0x7f:
      pkt[i] = (sz & 0x7f) | 0x80
      sz >>= 7
      i += 1
    pkt[i] = sz
    #print(hex(len(pkt)), hexlify(pkt, ":"))
    self.sock.write(pkt, i + 1)
    self._send_str(topic)
    if qos > 0:
      self.pid += 1
      pid = self.pid
      struct.pack_into("!H", pkt, 0, pid)
      self.sock.write(pkt, 2)
    self.sock.write(msg)
    if qos == 1:
      while 1:
        op = self.wait_msg()
        if op == 0x40:
          sz = self.sock.read(1)
          assert sz == b"\x02"
          rcv_pid = self.sock.read(2)
          rcv_pid = rcv_pid[0] << 8 | rcv_pid[1]
          if pid == rcv_pid:
            return
    elif qos == 2:
      assert 0

  def subscribe(self, topic, qos=0):
    assert self.cb is not None, "Subscribe callback is not set"
    pkt = bytearray(b"\x82\0\0\0")
    self.pid += 1
    struct.pack_into("!BH", pkt, 1, 2 + 2 + len(topic) + 1, self.pid)
    #print(hex(len(pkt)), hexlify(pkt, ":"))
    self.sock.write(pkt)
    self._send_str(topic)
    self.sock.write(qos.to_bytes(1, "little"))
    while 1:
      op = self.wait_msg()
      if op == 0x90:
        resp = self.sock.read(4)
        #print(resp)
        assert resp[1] == pkt[2] and resp[2] == pkt[3]
        if resp[3] == 0x80:
          raise MQTTException(resp[3])
        return

  # Wait for a single incoming MQTT message and process it.
  # Subscribed messages are delivered to a callback previously
  # set by .set_callback() method. Other (internal) MQTT
  # messages processed internally.
  def wait_msg(self):
    res = self.sock.read(1)
    self.sock.setblocking(True)
    if res is None:
      return None
    if res == b"":
      raise OSError(-1)
    if res == b"\xd0":  # PINGRESP
      sz = self.sock.read(1)[0]
      assert sz == 0
      return None
    op = res[0]
    if op & 0xf0 != 0x30:
      return op
    sz = self._recv_len()
    topic_len = self.sock.read(2)
    topic_len = (topic_len[0] << 8) | topic_len[1]
    topic = self.sock.read(topic_len)
    sz -= topic_len + 2
    if op & 6:
      pid = self.sock.read(2)
      pid = pid[0] << 8 | pid[1]
      sz -= 2
    msg = self.sock.read(sz)
    self.cb(topic, msg)
    if op & 6 == 2:
      pkt = bytearray(b"\x40\x02\0\0")
      struct.pack_into("!H", pkt, 2, pid)
      self.sock.write(pkt)
    elif op & 6 == 4:
      assert 0

  # Checks whether a pending message from server is available.
  # If not, returns immediately with None. Otherwise, does
  # the same processing as wait_msg.
  def check_msg(self):
    self.sock.setblocking(False)
    return self.wait_msg()

boot.py

# This file is executed on every boot (including wake-boot from deepsleep)
#import esp
#esp.osdebug(None)
#import webrepl
#webrepl.start()

import gc

def do_connect():
        import network
        sta_if = network.WLAN(network.STA_IF)
        ap_if = network.WLAN(network.AP_IF)
        if ap_if.active():
                ap_if.active(False)
        if not sta_if.isconnected():
                print('connecting to network...')
        sta_if.active(True)
        sta_if.connect('wailaizhu', '123456789') #wifi的SSID和密碼
        while not sta_if.isconnected():
                pass
        print('network config:', sta_if.ifconfig())
 
do_connect()
gc.collect()

mqtt.py:

from simple import MQTTClient
from machine import Pin
import machine
import micropython
import time

#選擇G4引腳
g4 = Pin(2, Pin.OUT, value=0)
# MQTT服務器地址域名爲：183.230.40.39,不變
SERVER = 'mqtt.heclouds.com'  #183.230.40.39
#設備ID
CLIENT_ID = "588584870"
#隨便起個名字
TOPIC = b"GPIO2LED"
#產品ID
username='357351'
#產品APIKey:
password='xr9UTi3=e43RxMrK7QyoNAt3liU='
state = 0

def sub_cb(topic, msg):  #定義命令事件
    global state
    print((topic, msg))
    if msg == b"on":
            g4.value(1)
            state = 1
            print("1")
    elif msg == b"off":
            g4.value(0)
            state = 0
            print("0")
    elif msg == b"toggle":
 
            state = 1 - state
            g4.value(state)

 
def main():
    while 1:
      time.sleep(60)
      runing()

def runing(server=SERVER):
    #端口號爲：6002 
    c = MQTTClient(CLIENT_ID, server,6002,username,password,keepalive=60)
    c.set_callback(sub_cb)
    c.connect()
    c.subscribe(TOPIC)  #訂閱
    print("Connected to %s, subscribed to %s topic" % (server, TOPIC))

    try:
           while 1:
                    c.wait_msg()
    except:
            c.disconnect()

main.py:

import mqtt
mqtt.main()

單文件執行方式處理：

遠程控制需兩個程序，主程序mqtt，和一個umqtt庫中自帶的simple.py

import network
sta_if = network.WLAN(network.STA_IF)
if not sta_if.isconnected():
  print('connecting to network...')
sta_if.active(True)
sta_if.connect('馬玉成', '15188955709') #wifi的SSID和密碼
while not sta_if.isconnected():
  pass
print('network config:', sta_if.ifconfig())



from simple import MQTTClient
from machine import Pin
import time
import machine
import json
import micropython
# ESP32 ESP-12 modules have blue, active-low LED on GPIO2, replace
# with something else if needed.
led = Pin(2, Pin.OUT, value=0)
led.value(1)
time.sleep(1)
led.value(0)
out = Pin(12,Pin.OUT,value=0)
get_in = Pin(14,Pin.IN)
# Default MQTT server to connect to
SERVER = "183.230.40.39"
CLIENT_ID = "527249858"
TOPIC = b"topic1"
username='244037'
password='6LIGFBFWp==XLUzqCWlXYwpBKTg='
state = 0
def pubdata():
    global state
    data = {'datastreams':[{'id':'temp1','datapoints':[{'value':str(state)}] } ]}
    j_d = json.dumps(data)
    j_l = len(j_d)
    arr = bytearray(j_l + 3)
    arr[0] = 1 #publish數據類型爲json
    arr[1] = int(j_l / 256) # json數據長度 高位字節
    arr[2] = j_l % 256      # json數據長度 低位字節
    arr[3:] = j_d.encode('ascii') # json數據
    return arr

def catch_mouse(p):
  global state
  state = 1
  led.value(1)
  out.value(1)
  state = 1
  print("catch one time")

def sub_cb(topic, msg):
  global state
  print((topic, msg))
  if msg == b"off":
    led.value(0)
    out.value(0)
    state = 0
    print("1")
  elif msg == b"on":
    led.value(1)
    out.value(1)
    state = 1
    print("0")
  elif msg == b"toggle":
    # LED is inversed, so setting it to current state
    # value will make it toggle
    led.value(state)
    out.value(state)
    state = 1 - state
def main1(server=SERVER):
  global state
  c = MQTTClient(CLIENT_ID, server,6002,username,password)
  # Subscribed messages will be delivered to this callback
  c.set_callback(sub_cb)
  c.connect()
  c.subscribe(TOPIC)
  c.publish('$dp',pubdata())
  print("Connected to %s, subscribed to %s topic" % (server, TOPIC))
  try:
    while 1:
      #micropython.mem_info()
      c.publish('$dp',pubdata())
      #c.ping()
      c.check_msg()
      time.sleep(3)
  finally:
      c.disconnect()


get_in.irq(trigger=Pin.IRQ_FALLING,handler=catch_mouse)
main1()

整體流程：繼電器－〉

實例３.使用Ajax-web控制pwm信號：

webpwm.py

from machine import Pin,PWM
import network
import os
import time
import socket
import gc
 
SSID="wailaizhu"
PASSWORD="123456789"
wlan=None
s=None
led=None
 
def connectWifi(ssid,passwd):
  global wlan
  wlan=network.WLAN(network.STA_IF)
  wlan.active(True)
  wlan.disconnect()
  wlan.connect(ssid,passwd)
  while(wlan.ifconfig()[0]=='0.0.0.0'):
    time.sleep(1)
  return True
def ajaxWebserv():
  # minimal Ajax in Control Webserver
  global s,led
  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
  s.bind((wlan.ifconfig()[0], 80))
  s.listen(1)
  while True:
    conn, addr = s.accept()
    #print("Got a connection from %s" % str(addr))
    request = conn.recv(1024)
    conn.sendall('HTTP/1.1 200 OK\nConnection: close\nServer: FireBeetle\nContent-Type: text/html\n\n')
 
    request = str(request)
    ib = request.find('Val=')
    if ib > 0 :
      ie = request.find(' ', ib)
      Val = request[ib+4:ie]
      print("Val =", Val)
      led.duty(int(Val)*100)
      conn.send(Val)
    else:
      with open('webCtrl.htm', 'r') as html:  #控制頁
        conn.sendall(html.read())
    conn.sendall('\r\n')
    conn.close()
    #print("Connection wth %s closed" % str(addr))
try:
 
  led=PWM(Pin(2),freq=100)
  led.init()
  led.duty(0)
  connectWifi(SSID, PASSWORD)
  ajaxWebserv()
except:
  if (s):
    s.close()
  led.deinit()
  wlan.disconnect()
  wlan.active(False)

webCtrl.htm

<html> 
<head> 
<title>ajaxWebCtrl</title> 
  <link rel="icon" href="data:;base64,=">
  <style type="text/css" id="style">
	  .dimwrap { border: 2px solid red; height: 150px; width: 600px;}
	  .dimSlide { transform: scaleX(2) rotate(0deg); width: 256px;position: relative; top: 80px; left: 90px;}
	  .dimVal { width: 90px; height:30;position: relative; top: 20px; left: 20px}
  </style>
<script language="javascript">
function dimSet(evt) {
	var me, he;
  var resp, xmlhttp=new XMLHttpRequest();   
	me = evt.target;
	he = document.getElementById(me.id == "dimVal"? "dimSlide":"dimVal"); // need my other value node
  xmlhttp.onreadystatechange=function() {
    if (xmlhttp.readyState==4 && xmlhttp.status==200){
		  resp = xmlhttp.responseText;
      console.log(resp);
      he.value = parseInt(resp);
		}
	}
  xmlhttp.open("GET","Val=" + me.value,true); xmlhttp.send()
} 
</script> 
</head> 
<body> 
    <h1>PWM LED --- Web Control for FireBeetle</h1>
    <div class="dimwrap" id="dimwrap">
	  <input class="dimVal" type="number" id="dimVal" min="0" max="10" step="1" value="0" onclick="dimSet(event)" oninput="dimSet(event)" > 
	  <input class= "dimSlide" type="range" id="dimSlide" min="0" max="10" step="1" value="0" onclick="dimSet(event)" oninput="dimSet(event)" >
    </div>
</body>
</html>

連接esp的ip地址進入控制頁：

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時間格式化：time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())

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完善onenet接入：

mqtt

from umqtt.simple import MQTTClient
from machine import Pin
import network
import time
import json
import micropython
import ubinascii
import errno
import dht  #溫溼度模塊
import gc

SSID="wailaizhu"
PASSWORD="XXXXXXXXXXXX"
wlan=None
s=None

kg13 = Pin(2, Pin.OUT, value=0)  #繼電/led控制信號
g25 = dht.DHT11(Pin(15))  #溫溼度
g26 = Pin(13,Pin.IN)  #土壤感知

time.sleep(1)

CLIENT_ID = "588284870" #設備ID
username = "374381" #產品ID
password = "vtGMSdsZXPcCzMz4jk7y=rQ8gmo="  #APIKEY
SERVER = 'mqtt.heclouds.com'  #183.230.40.39
TOPIC = b'wenshidu'
state = 0
c=None

def connectWifi(ssid,passwd):
 
    global wlan #函數內部對外部的變量進行操作
    wlan=network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.disconnect()
    wlan.connect(ssid,passwd)
    while(wlan.ifconfig()[0]=='0.0.0.0'):
        time.sleep(1)
    return True

def sub_cb(topic, msg):
  global state
  print((topic, msg))
  if msg == b"on":
    kg13.value(1)
    state = 0
    print("1")
  elif msg == b"off":
    kg13.value(0)
    state = 1
    print("0")
  elif msg == b"toggle":
    kg13.value(state)
    state = 1 - state
 

def pub_data(data):   #組合成協議要求的報文格式
    j_d = json.dumps(data)
    j_l = len(j_d)
    arr = bytearray(j_l + 3)
    arr[0] = 1 #publish數據類型爲json
    arr[1] = int(j_l / 256) # json數據長度 高位字節
    arr[2] = j_l % 256      # json數據長度 低位字節
    arr[3:] = j_d.encode('ascii') # json數據
    return arr
 
 
def runing(): 
  try:
    while 1:
      g25.measure()  #刷新dht
      tmp = g25.temperature()  #獲取溫度
      hum = g25.humidity()  #獲取溼度
      tur = g26.value()  #獲取土壤感知
    
    #要上報的數據點
      message = {'datastreams':[{'id':'temperature','datapoints':[{'value':tmp}]},{'id':'hum','datapoints':[{'value':hum}]},{'id':'turang','datapoints':[{'value':tur}]}]}

      server=SERVER
      c = MQTTClient(CLIENT_ID, server,6002,username,password,keepalive=180)     #創建客戶端連接
      c.set_callback(sub_cb)                    #set callback
      c.connect()                                      #connect mqtt
      c.subscribe(TOPIC)    #訂閱 
      c.publish('$dp',pub_data(message))    #發佈
      print('1')
      c.wait_msg()
      time.sleep(3)
      c.disconnect()
  except:
    print('2')
    c.disconnect()
    time.sleep(3)
    wlan.disconnect()
    #wlan.active(False)
    #return
 
while True:
   try:
     time.sleep(5)
     connectWifi(SSID,PASSWORD)
     time.sleep(5)
     runing()
     print('3')
     time.sleep(5)
   except:
     wlan.disconnect()
     wlan.active(False)

至onenet平臺新建APP開關控制

 

 

http

import urequests
import network
import socket
import time
import json
import dht  #溫溼度模塊
from machine import Pin

DEVICE_ID='573659554'  #netone設備id
API_KEY='8w6faRSugDcrkdwvpIssdUYaIyQ='  #api-key

SSID="wailaizhu"
PASSWORD="XXXXXXXXXX"
wlan=None
s=None

dht11 = dht.DHT11(Pin(25))  #dht的gpio引腳
g26 = Pin(26,Pin.IN)  #土壤感知

def connectWifi(ssid,passwd):
 
    global wlan #函數內部對外部的變量進行操作
    wlan=network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.disconnect()
    wlan.connect(ssid,passwd)
    while(wlan.ifconfig()[0]=='0.0.0.0'):
        time.sleep(1)
    return True

def http_put_data_wd(data):   #傳遞溫度
    url='http://api.heclouds.com/devices/'+DEVICE_ID+'/datapoints'
    values={'datastreams':[{"id":'temperature',"datapoints":[{"value":data}]}]}
    jdata = json.dumps(values) 
    
    r=urequests.post(url,data=jdata,headers={"api-key":API_KEY})
    return r

def http_put_data_sd(data): #傳遞溼度
    url='http://api.heclouds.com/devices/'+DEVICE_ID+'/datapoints'
    values={'datastreams':[{"id":'humidity',"datapoints":[{"value":data}]}]}
    jdata = json.dumps(values) 
    
    r=urequests.post(url,data=jdata,headers={"api-key":API_KEY})
    return r

def http_put_data_tr(data): #土壤感知
    url='http://api.heclouds.com/devices/'+DEVICE_ID+'/datapoints'
    values={'datastreams':[{"id":'turang',"datapoints":[{"value":data}]}]}
    jdata = json.dumps(values) 
    
    r=urequests.post(url,data=jdata,headers={"api-key":API_KEY})
    return r
 
dht11.measure()
wd = dht11.temperature()
sd = dht11.humidity()
tr = g26.value()
 
def up_data():
 
  http_put_data_wd(wd)
  time.sleep(30)
  http_put_data_sd(sd)
  time.sleep(30)
  http_put_data_tr(tr)
  time.sleep(30)
 
while True:
   try:
     connectWifi(SSID,PASSWORD)
     up_data()
     time.sleep(30)
   except:
     wlan.disconnect()
     wlan.active(False)