I'm on Bitcointalk since early 2014 and was most of the time active in the Altcoin section.
I have concerns about the environmental impact of the use of Bitcoin but I have some idea's to make it greener.
It is a journey and I started to investigate more the use of small devices for supporting the blockchain network.
There are several guides to setup a Bitcoin full node in Rasberrypi.
https://blog.brakmic.com/running-a-full-bitcoin-node-on-raspberry-pi-3/
https://howchoo.com/bitcoin/run-bitcoin-full-node-raspberry-pi
I have a few Rasberrypi V3 and I tried with and without a GUI.
The setup is running now with a 500GB HDD.
With 45 connections and also incoming because port 8333 is open for the device.
Registered my full node @ https://bitnodes.io/
But I also played with the command version of the Bitcoin full node:
Mounted the same disk containing a copied version of the complete Bitcoin blockchain from my PC.
Content of the bitcoin home folder before I started the Bitcoin full node.
And after a few hours 18 connections.
I hope you like to read this post and see the success of my efforts.
By sharing this maybe others are motivated also create a Bitcoin full node on a Raspberrypi, it is very energyeffecient.
My idea's for a more energy-efficient Bitcoin blockchain ecosystem I shall share in the next post I make in this topic.
Have a nice day,
Jan