【教程分享】Arduino uno R3接入机智云，实现物联网开发
【教程分享】Arduino接入机智云，实现物联网开发准备工作：
[*]1.云端数据点创建。
[*]2.Ardunio UNO R3一块，某宝10来块钱一块。
[*]3.ESP12F（32Mbit）一个（需要给模块下载GAgent固件，固件下载，按照文件里面地址对应下载，固件下载地址http://goms-1251025085.cosgz.myqcloud.com/GAgent_00ESP826_04020029-1524657141995.rar）
[*]4.2.DHT11
[*]5.RGB_LED(共阴)
[*]6.微动开关
[*]7. 5V继电器一个
接线方法：
[*]Ardunio esp8266
[*]Txd Rxd
[*]Rxd Txd
[*]3.3V VCC
[*]Gnd Gng
[*]Ardunio RGB_LED
[*]pin9 R
[*]pin10 G
[*]pin11 B
[*]GND COM
[*]Ardunio DHT11
[*]A0 data
[*]5V VCC
[*]Gnd Gng
[*]Ardunio 继电器
[*]pin2 in
[*]5V VCC
[*]Gnd Gng
[*]Ardunio LED
[*]5V 阳极
[*]pin3 阴极
[*]Ardunio 按键
[*]A4 K1
[*]A5 K2
http://club.gizwits.com/static/image/hrline/1.gif
教程开始http://club.gizwits.com/static/image/hrline/1.gif
创建完所有数据点之后。点击MCU开发，按照下图完成设置之后生成ardunio uno r3代码。生成好代码之后下载代码http://club.gizwits.com/data/attachment/forum/201806/04/110820lj62mjyoc6occjjv.png.thumb.jpg解压代码，导入到项目到开发环境之中（需要把文件解压到软件的库目录下，否则会编译不过）http://club.gizwits.com/data/attachment/forum/201806/04/112351tltkkqot5kl1rj6k.png.thumb.jpg导入项目之后修改程序，对于程序介绍，此处我挑重点，其余代码请自行下载附件查看。为了方便查看增加的代码，这个地方我就不再增加库，而是全部用驱动的方式来实现。
首先来看一下DHT11。我们使用的是A0引脚，也就是第PC5引脚，驱动pin14代码如下
[*]int temp;//温度
[*]int humi;//湿度
[*]int tol;//校对码
[*]int j;
[*]unsigned int loopCnt;
[*]int chr = {0};//创建数字数组，用来存放40个bit
[*]unsigned long time;
[*]#define DHT11 14
[*]//温湿度采集
[*]void read_dht11()
[*]{
[*]//delay(1000);//注意采集间隔应该大于1秒
[*]//设置19号接口模式为：输出
[*]//输出低电平20ms（>18ms）
[*]//输出高电平40μs
[*]pinMode(DHT11,OUTPUT);
[*]digitalWrite(DHT11,LOW);
[*]delay(20);
[*]digitalWrite(DHT11,HIGH);
[*]delayMicroseconds(40);
[*]digitalWrite(DHT11,LOW);
[*]//设置2号接口模式：输入
[*]pinMode(DHT11,INPUT);
[*]//高电平响应信号
[*]loopCnt=10000;
[*]while(digitalRead(DHT11) != HIGH)
[*]{
[*] if(loopCnt-- == 0)
[*] {
[*] //如果长时间不返回高电平，跳出程序。
[*] break;
[*] }
[*]}
[*]//低电平响应信号
[*]loopCnt=30000;
[*]while(digitalRead(DHT11) != LOW)
[*]{
[*] if(loopCnt-- == 0)
[*] {
[*] //如果长时间不返回低电平，跳出程序。
[*] break;
[*] }
[*]}
[*]//开始读取bit1-40的数值
[*] for(int i=0;i<40;i++)
[*]{
[*] while(digitalRead(DHT11) == LOW)
[*] {}
[*] //当出现高电平时，记下时间“time”
[*] time = micros();
[*] while(digitalRead(DHT11) == HIGH)
[*] {}
[*]//当出现低电平，记下时间，再减去刚才储存的time
[*]//得出的值若大于50μs，则为‘1’，否则为‘0’
[*]//并储存到数组里去
[*] if (micros() - time >50)
[*] {
[*] chr=1;
[*] }else{
[*] chr=0;
[*] }
[*]}
[*] //湿度，8位的bit，转换为数值
[*] humi=chr*128+chr*64+chr*32+chr*16+chr*8+chr*4+chr*2+chr;
[*] //温度，8位的bit，转换为数值
[*] temp=chr*128+chr*64+chr*32+chr*16+chr*8+chr*4+chr*2+chr;
[*] //校对码，8位的bit，转换为数值
[*] tol=chr*128+chr*64+chr*32+chr*16+chr*8+chr*4+chr*2+chr;
[*] //输出：温度、湿度、校对码
[*] //校对码，我这里没用上
[*] //理论上，湿度+温度=校对码
[*] //如果数值不相等，说明读取的数据有错。
[*] bgn;//跳出程序，可能是没查DHT11可修改成报警或者故障
[*]}
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接下来修改按键，按键要把管脚修改过去，按键的管脚分别是A4 A5 对应1819，修改过后：
[*]#define KEY1 18
[*]#define KEY2 19
[*]bool led = 0;//LED状态，控制的时候进行取反
[*]bool gdq = 0;//继电器状态控制的时候进行取反
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同时修改长短按键。
[*]void KEY_Handle(void)
[*]{
[*]/*Press for over than 3 second is Long Press*/
[*]switch (gokit_keydown())
[*]{
[*] case KEY1_SHORT_PRESS:
[*] if(led)
[*] {
[*] led=0;
[*] mySerial.println(F("KEY1_SHORT_PRESS LED OFF"));
[*] }
[*] else
[*] {
[*] led=1;
[*] mySerial.println(F("KEY1_SHORT_PRESS LED ON"));
[*] }
[*] break;
[*] case KEY1_LONG_PRESS:
[*] mySerial.println(F("KEY1_LONG_PRESS Soft AP mode"));
[*] myGizwits.setBindMode(WIFI_SOFTAP_MODE);
[*] //Soft AP mode
[*] break;
[*] case KEY2_SHORT_PRESS:
[*] if(gdq)
[*] {
[*] gdq=0;
[*] mySerial.println(F("KEY2_SHORT_PRESS LED OFF"));
[*] }
[*] else
[*] {
[*] gdq=1;
[*] mySerial.println(F("KEY2_SHORT_PRESS LED ON"));
[*] }
[*] break;
[*] case KEY2_LONG_PRESS:
[*] mySerial.println(F("KEY2_LONG_PRESS ,AirLink mode"));
[*] myGizwits.setBindMode(WIFI_AIRLINK_MODE);
[*] //AirLink mode
[*] break;
[*] default:
[*] break;
[*]}
[*]}
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到此按键就修改完了，接下来修改用户处理函数，没安装notepad++的最好安装一个，用记事本也行，个人习惯用notepad++。修改其他代码需要用到。利用notepad++打开gizwits_protocol.h文件，修改数据上报时间为1秒或者2秒，此处我修改为2秒#define REPORT_TIME_MAX 2000 //2S，打开gizwits_product.c文件，里面绝大部分程序思维按照类上一篇帖子的思维进行修改。将以下内容补充完整。在gizwits_product.c里面
[*]case EVENT_switch_led:
[*] currentDataPoint.valueswitch_led = dataPointPtr->valueswitch_led;
[*] attrFlags.flagswitch_led = 1;
[*] if(0x01 == currentDataPoint.valueswitch_led)
[*] {
[*] led=1;//打开大功率LED
[*] }
[*] else
[*] {
[*] led=0;//关闭大功率LED
[*] }
[*] break;
[*] case EVENT_switch_relay:
[*] currentDataPoint.valueswitch_relay = dataPointPtr->valueswitch_relay;
[*] attrFlags.flagswitch_relay = 1;
[*] if(0x01 == currentDataPoint.valueswitch_led)
[*] {
[*] gdq=1;//打开继电器
[*] }
[*] else
[*] {
[*] gdq=0;//关闭继电器
[*] }
[*] break;
[*]
[*] case EVENT_color_controls:
[*] currentDataPoint.valuecolor_controls = dataPointPtr->valuecolor_controls;
[*] attrFlags.flagcolor_controls = 1;
[*] mode_Cloud_data=currentDataPoint.valuecolor_controls;
[*] break;
[*]
[*] case EVENT_LED_R:
[*] currentDataPoint.valueLED_R = dataPointPtr->valueLED_R;
[*] attrFlags.flagLED_R = 1;
[*] mode_Cloud_data=currentDataPoint.valueLED_R;//红色值
[*] if(mode_Cloud_data!=1)mode_Cloud_data=1;//自定义
[*] break;
[*] case EVENT_LED_G:
[*] currentDataPoint.valueLED_G = dataPointPtr->valueLED_G;
[*] attrFlags.flagLED_G = 1;
[*] mode_Cloud_data=currentDataPoint.valueLED_G;//绿色值
[*] if(mode_Cloud_data!=1)mode_Cloud_data=1;//自定义
[*] break;
[*] case EVENT_LED_B:
[*] currentDataPoint.valueLED_B = dataPointPtr->valueLED_B;
[*] attrFlags.flagLED_B = 1;
[*] mode_Cloud_data=currentDataPoint.valueLED_B;//蓝色值
[*] if(mode_Cloud_data!=1)mode_Cloud_data=1;//自定义
[*] break;
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在文件开头全局一个int mode_Cloud_data={0};//云端数据缓存0模式 1R 2G 3B
接下来回到Ardunio软件，增加RGB驱动函数。定义管脚
[*]int redPin = 9 ;
[*]int greenPin = 10;
[*]int bluePin = 11;
[*]初始化
[*]pinMode(redPin ,OUTPUT);
[*]pinMode(greenPin ,OUTPUT);
[*]pinMode(bluePin ,OUTPUT);
[*]RGB控制函数
[*]//rgb控制
[*]void RGB_light_set_color(int red,int green,int blue)
[*]{
[*] analogWrite(redPin,red);
[*] analogWrite(greenPin,green);
[*] analogWrite(bluePin,blue);
[*]}
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接下来我们需要新增用户处理的函数
[*]//用户处理函数
[*]void setsystem()
[*]{
[*]if(led) digitalWrite(LED_SW,LOW);
[*] else digitalWrite(LED_SW,HIGH);
[*]if(gdq) digitalWrite(GDQ_SW,LOW);
[*] else digitalWrite(GDQ_SW,HIGH);
[*]
[*]switch(mode_Cloud_data)
[*]{
[*] case 0 :
[*] RGB_light_set_color(0,0,0);//关闭灯
[*] currentDataPoint.valuecolor_controls = 0;
[*] currentDataPoint.valueLED_R = 0;
[*] currentDataPoint.valueLED_G = 0;
[*] currentDataPoint.valueLED_B = 0;
[*] break;
[*] case 1 :
[*] RGB_light_set_color(mode_Cloud_data,mode_Cloud_data,mode_Cloud_data);//自定义
[*] currentDataPoint.valuecolor_controls = 1;
[*] currentDataPoint.valueLED_R = mode_Cloud_data;
[*] currentDataPoint.valueLED_G = mode_Cloud_data;
[*] currentDataPoint.valueLED_B = mode_Cloud_data;
[*] break;
[*] case 2 :
[*] RGB_light_set_color(255,0,0);//红色
[*] currentDataPoint.valuecolor_controls = 2;
[*] currentDataPoint.valueLED_R = 255;
[*] currentDataPoint.valueLED_G = 0;
[*] currentDataPoint.valueLED_B = 0;
[*] break;
[*] case 3 :
[*] RGB_light_set_color(0,255,0);//绿色
[*] currentDataPoint.valuecolor_controls = 3;
[*] currentDataPoint.valueLED_R = 0;
[*] currentDataPoint.valueLED_G = 255;
[*] currentDataPoint.valueLED_B = 0;
[*] break;
[*] case 4 :
[*] RGB_light_set_color(0,0,255);//蓝色
[*] currentDataPoint.valuecolor_controls = 4;
[*] currentDataPoint.valueLED_R = 0;
[*] currentDataPoint.valueLED_G = 0;
[*] currentDataPoint.valueLED_B = 255;
[*] break;
[*] case 5 :
[*] RGB_light_set_color(255,255,0);//黄色
[*] currentDataPoint.valuecolor_controls = 5;
[*] currentDataPoint.valueLED_R = 255;
[*] currentDataPoint.valueLED_G = 255;
[*] currentDataPoint.valueLED_B = 0;
[*] break;
[*] case 6 :
[*] RGB_light_set_color(255,0,255);//紫色
[*] currentDataPoint.valuecolor_controls = 6;
[*] currentDataPoint.valueLED_R = 255;
[*] currentDataPoint.valueLED_G = 0;
[*] currentDataPoint.valueLED_B = 255;
[*] break;
[*] case 7 :
[*] RGB_light_set_color(255,52,179);//粉色（估计不是粉色）
[*] currentDataPoint.valuecolor_controls = 7;
[*] currentDataPoint.valueLED_R = 255;
[*] currentDataPoint.valueLED_G = 52;
[*] currentDataPoint.valueLED_B = 179;
[*] break;
[*] case 8 :
[*] RGB_light_set_color(255,255,255);//白色
[*] currentDataPoint.valuecolor_controls = 8;
[*] currentDataPoint.valueLED_R = 255;
[*] currentDataPoint.valueLED_G = 255;
[*] currentDataPoint.valueLED_B = 255;
[*] break;
[*] default:
[*] break;
[*]}
[*]}
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将setsystem();函数放在loop里面，同时吧DHT11也放进去
[*]setsystem();
[*]read_dht11();
[*]currentDataPoint.valuetemperature = temp;
[*]currentDataPoint.valuehumidity = humi;
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