Me and my friends have decided to do a small project using 3-4 RPIs and making transactions between them using smart contracts.
The smart contracts will trigger events based on weather or any real time data, and will make a transaction to the other RPI's in this small blockchain, which will then trigger a function that will turn on a LED or display something.
First of all, is it feasible ?
Then , would i need to download the whole testnet blockchain on the RPI's or there exists another solution that will need less time or space ?
Finally, what frameworks or packages would i need to do it ?