arduino-uno


How to save and recieve String in thingspeak.com?


I know how to save data like(1,2,2.3,65.2).
I was wondering if its possible to save and retrieve data like('AP09BN7886')(String) in thingspeak.com?
I am sending data to thingspeak.com via esp8266 connected to my arduino UNO using AT commands.
Can I also retrieve data from thingspeak.com using esp8266 in Arduino UNO?

The arduino examples from thingspeak.com on GitHub shows an example to handle string data via ethernet. This could be a perfect starting point for you.
//...
// Create HTTP POST Data
tsData = "api_key="+thingtweetAPIKey+"&status="+tsData;
client.print("POST /apps/thingtweet/1/statuses/update HTTP/1.1\n");
client.print("Host: api.thingspeak.com\n");
client.print("Connection: close\n");
client.print("Content-Type: application/x-www-form-urlencoded\n");
client.print("Content-Length: ");
client.print(tsData.length());
client.print("\n\n");
client.print(tsData);
//...


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