The "EU Blockchain" team of the European Commission - DIGIT (formerly "Blockchain Competence Center") has successfully managed to compile the "EU blockchain" (modified version of the steem blockchain) for ARM 8 (64 bits) processors. 

# Odroid C2

![euBlockchainOdroid-1.jpg](https://cdn.steemitimages.com/DQmUNAGp3gGEacKh1aWyWqw6ZiN4qzByjKgjpVvX3Vf9mTb/euBlockchainOdroid-1.jpg)
<sup>An "Odroid C2" device from [Hardkernel](https://www.hardkernel.com/shop/odroid-c2/), retail price $46 sits on a RAV Powerbank (on a laptop keyboard)</sup>

In this short movie, an Odroid C2 device, powered by a RAV powerbank (max 10 W maximum output) successfully synchronized with the [test network of EFTG](https://pulsar.blkcc.xyz/witnesses) and has just validated a block.

https://youtu.be/OreJ-j6wEow

The device running the modified steem clone has 2GB of RAM and 8GB of eMMC flash memory. It connects via Wi-Fi and is mobile.

# Raspberry PI 3b

![steem-on-rpi.jpg](https://cdn.steemitimages.com/DQmXAvtJ5C5B1hb6rWPrFrN4zL5H4oPXDjRGz6UfM1X5sXG/steem-on-rpi.jpg)
<sup>After compiling on an Odroid  UX4 with 4GB RAM, the blockchain runs successfully on a Raspberry PI 3b (1 GB RAM only)</sup>

What is interesting to note is that while running, the RPI consumes 2 Watts of power ! That means 48 Wh in a day or 17.52 kWh per year. Which at the typical retail price of 0.14 €/kWh it means that running an EU blockchain RPI node 24/7/365 costs ... **2.5€ per year** in electricity ! "Greener" than green !

![rpi-2w.PNG](https://cdn.steemitimages.com/DQmWtw51CjX8j6LGQQ2YYR8oA4F4TQfbmYWzwR4nyvAgoNG/rpi-2w.PNG)

A 2 minute video of the RPI "at work" can be watched here:
https://www.youtube.com/watch?v=SzWT3pg3wLM

Here is the witness list from the [EFTG test network](https://pulsar.blkcc.xyz/witnesses). Note that in addition to the RPI and the Odroid C2, the Odroid UX4 which compiled the code is also able to validate blocks successfully, which brings us to 3 different ARM devices tested successfully.

![witnesses.PNG](https://cdn.steemitimages.com/DQmVnJ7uQwADFtwiSQjPznSSDEMR5Y6ptivzCbshqTsjUm1/witnesses.PNG)

And here is the [profile page of the "raspberrypi" witness](https://pulsar.blkcc.xyz/explorer/@raspberrypi)
![prod-rewards.PNG](https://cdn.steemitimages.com/DQmZkWaZ7WboCC772tE9BucRs98pv9WHdGHNJKBFA31DcFg/prod-rewards.PNG)

![](https://steemitimages.com/DQmSVbsRDoqgb6HHURg5mno5obd56HHLKGpaebpQ2n9EqfZ/image.png)
## Related posts
- [The European Financial Transparency Gateway (EFTG) Pilot Project](https://steemit.com/eftg/@pstaiano/the-european-financial-transparency-gateway-eftg-pilot-project)
- [EU-citizens-blockchain-in-a-box](https://steemit.com/blockchain/@sorin.cristescu/eu-citizens-blockchain-in-a-box)
- [Incentive-based regulation - Blockchain opens up a new era of European integration](https://steemit.com/blockchain/@sorin.cristescu/incentive-based-regulation-blockchain-opens-up-a-new-era-of-european-integration)
- [European Financial Transparency Gateway]( https://steemit.com/utopian-io/@sorin.cristescu/european-financial-transparency-gateway)
- [Toward a pan-EU blockchain infrastructure](https://steemit.com/blockchain/@sorin.cristescu/toward-a-pan-eu-blockchain-infrastructure)
- [Blockchain and Data Virtualisation](https://staging.busy.org/@sorin.cristescu/blockchain-and-data-virtualisation)

![](https://steemitimages.com/DQmSVbsRDoqgb6HHURg5mno5obd56HHLKGpaebpQ2n9EqfZ/image.png)
If you know what witnesses are and agree that people commited to keeping this blockchain ticking play an important role ... 
[![](https://i.imgsafe.org/b4/b4b031f9bb.png)](https://steemconnect.com/sign/account-witness-vote?witness=lux-witness&approve=1)
(by simply clicking on the picture - thanks to SteemConnect)