What is the rpc IP address?

Question

I've only begun with blockchain(rinkeby-testnet) and IOT. I use nodemcu (ARDUINO IDE) and mist. What should the rpc-ip address be? Do I have to establish an ethereum node in order to do that ?

Answer 1

I think you are right.

Command Line Options：

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API AND CONSOLE OPTIONS:

--rpc Enable the HTTP-RPC server

--rpcaddr value HTTP-RPC server listening interface (default: "localhost")

--rpcport value HTTP-RPC server listening port (default: 8545)

--rpcapi value API's offered over the HTTP-RPC interface

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