我无法通过以太网屏蔽从我的 Arduino Mega 上传数据到 Cosm。我尝试了其中一个教程示例 ( DatastreamUpload.ino )。我使用了 Cosm 在注册时提供给我的 API key 和提要 ID，并将 init() 函数更改为使用静态 IP 地址，如下所示:
byte mac[] = {0x90, 0xA2, 0xDA, 0x0D, 0xD3, 0x45 };
IPAddress ip(192,168,0, 110);
IPAddress gateway(192,168,0, 1);
IPAddress subnet(255, 255, 255, 0);
然后:
Ethernet.begin(mac, ip, gateway, subnet);
这是串行监视器的输出:
Read sensor value 452.00 Uploading it to Cosm cosmclient.put returned -1 Read sensor value 451.00 Uploading it to Cosm cosmclient.put returned -1 Read sensor value 378.00 Uploading it to Cosm cosmclient.put returned -3 Read sensor value 352.00 Uploading it to Cosm cosmclient.put returned -3
有人对此有解决方案吗？
最佳答案
目前缺少这方面的文档，需要查看源代码才能找到答案。这些错误代码在 HttpClient.h 中定义如下:
// The end of the headers has been reached. This consumes the '\n'
static const int HTTP_SUCCESS =0;
// Could not connect to the server
static const int HTTP_ERROR_CONNECTION_FAILED =-1;
// This call was made when the HttpClient class wasn't expecting it
// to be called. Usually indicates your code is using the class
// incorrectly
static const int HTTP_ERROR_API =-2;
// Spent too long waiting for a reply
static const int HTTP_ERROR_TIMED_OUT =-3;
// The response from the server is invalid, is it definitely an HTTP
// server?
static const int HTTP_ERROR_INVALID_RESPONSE =-4;
关于无法通过教程草图将数据从arduino mega上传到Cosm，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16178873/