通过USB-I2C适配器实现物联网功能(源码下载)!
偶然一个机会看到Yeelink这个平台,感觉不错,利用Ginkgo USB-I2C适配器可以读写控制AM2311温湿度传感器以获取环境温湿度,以前已经实现对这个适配器读写控制并在上位机上显示温湿度数据,今天看了下Yeelink的API,不是很复杂,于是就准备将它测的数据上传到Yeelink上;我将数据上传部分程序封装了下,用起来更简单了,上传数据或者获取数据需要用到的函数如下:
[*]int32_t WINAPI Yeelink_GetApiKey(const char *pUserName,const char *pPassword);
[*]int32_t WINAPI Yeelink_PostData(const char *pDeviceId,const char *pSensorId,const char *pValue);
[*]int32_t WINAPI Yeelink_GetData(const char *pDeviceId,const char *pSensorId,char *pValue);
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你只需要做以下工作就可以使用这些函数了:
1、在Yeelink注册一个账户,这个是必须的哈;
2、新建设备和传感器,找到设备ID和传感器ID,这个在设备管理里面的URL可以看到;
3、通过Ginkgo USB-I2C适配器获取环境中的温湿度值;
完成以上3个步骤后就可以调用这3个函数,实现将数据上传到Yeelink服务器了。
完整程序如下:
[*]// USB_I2C_AM2321B.cpp : 定义控制台应用程序的入口点。
[*]//
[*]
[*]#include "stdafx.h"
[*]#include "ControlI2C.h"
[*]#include "yeelink.h"
[*]
[*]
[*]int _tmain(int argc, _TCHAR* argv[])
[*]{
[*] int ret,i;
[*] VII_INIT_CONFIG I2C_Config;
[*] uint8_t write_buffer={0};
[*] uint8_t read_buffer={0};
[*] ret = Yeelink_GetApiKey("viewtool","viewtool2013");//输入用户名和密码
[*] if(ret != ERR_SUCCESS){
[*] printf("Get api key error!");
[*] return ret;
[*] }
[*] //扫描已经连接的设备
[*] ret = VII_ScanDevice(1);
[*] if(ret <= 0)
[*] {
[*] printf("No device connect!\n");
[*] return ret;
[*] }
[*] //打开设备
[*] ret = VII_OpenDevice(VII_USBI2C, 0, 0);
[*] if (ret != ERR_SUCCESS)
[*] {
[*] printf("Open device error!\n");
[*] return ret;
[*] }
[*] //初始化设备(硬件控制模式)
[*] I2C_Config.AddrType = VII_ADDR_7BIT;
[*] I2C_Config.ClockSpeed = 100000;
[*] I2C_Config.ControlMode = VII_HCTL_MODE;
[*] I2C_Config.MasterMode = VII_MASTER;
[*] I2C_Config.SubAddrWidth = VII_SUB_ADDR_NONE;
[*] ret = VII_InitI2C(VII_USBI2C, 0, 0, &I2C_Config);
[*] if (ret != ERR_SUCCESS)
[*] {
[*] printf("Initialize device error!\n");
[*] return ret;
[*] }
[*] //循环读取温湿度数据
[*] while(1)
[*] {
[*] uint8_t write_buffer = {0};
[*] //Wake up AM2311 sensor
[*] VII_WriteBytes(VII_USBI2C, 0, 0, 0xB8, 0x00, write_buffer, 1);
[*] //Send out read temperature and huminity command
[*] write_buffer = 0x03;
[*] write_buffer = 0x00;
[*] write_buffer = 0x04;
[*] ret = VII_WriteBytes(VII_USBI2C, 0, 0, 0xB8, 0x00, write_buffer, 3);
[*] if (ret != ERR_SUCCESS)
[*] {
[*] printf("Write data error!\n");
[*] return ret;
[*] }
[*] // Read out temperature and huminity
[*] uint8_t read_buffer = {0};
[*] ret = VII_ReadBytes(VII_USBI2C, 0, 0, 0xB8, 0x00, read_buffer, 8);
[*] if (ret != ERR_SUCCESS)
[*] {
[*] printf("Read data error!\n");
[*] return ret;
[*] }
[*] else
[*] {
[*] double t = ((read_buffer << 8) | read_buffer) / 10.0;
[*] system("cls");
[*] printf("温度值:%.1f ℃\n",t);
[*] double h = ((read_buffer << 8) | read_buffer) / 10.0;
[*] printf("湿度值:%.1f %\n",h);
[*] Sleep(10000);
[*] char StrTmp={0};
[*] sprintf(StrTmp,"%.1f",t);
[*] ret = Yeelink_PostData("9433","14860",StrTmp);//输入设备ID和传感器ID,以及传感器数据
[*] if(ret != ERR_SUCCESS){
[*] printf("Post data error!");
[*] }
[*] sprintf(StrTmp,"%.1f",h);
[*] ret = Yeelink_PostData("9433","14861",StrTmp);//输入设备ID和传感器ID,以及传感器数据
[*] if(ret != ERR_SUCCESS){
[*] printf("Post data error!");
[*] }
[*] }
[*] }
[*] return 0;
[*]}
[*]
[*]
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通过Yeelink获取到的数据截图如下:
程序完整工程下载(VS2010):
http://www.viewtool.com/bbs/static/image/filetype/rar.gif VC_USB_I2C_AM2321B_Yeelink.rar
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