Hi Akhila ,
Thanks for reply.I want data exchange between Arduino (Ethernet Shield) and Salesforce in real-time(almost).
But with ethernet shield we cannot directly communicate with SFDC as ethernet shield do not support HTTPS.
Also,if I use REST to fetch data from ThingSpeak then Salesforce's Governor limit for REST callouts comes in picture.
Does ThingSpeak support OData ? as in SFDC OData callout limit is much higher and connectivity with OData can solve my purpose.
Thanks,
Vishal