Thanks for the detailed guide. 
I haven't tried using Raspberry boards for mining since I've always considered them too weak (hardware wise) for this activity.
What kind of hash rates are you getting with it and how many coins per day?
I haven't tried using Raspberry boards for mining since I've always considered them too weak (hardware wise) for this activity.What kind of hash rates are you getting with it and how many coins per day?
This is not meant to be for Proof of Work mining, rather being a node in a Proof of Stake network. For keeping a node online and having your coins in your wallet unlocked for staking, you will gain rewards based on the amount of coins that you hold vs the total amount of coins that are being staked on the network. This process is not hardware intensive as supposed to Proof of Work mining, that's why this can run perfectly on a Raspberry Pi, you could even run multiple coin wallets and have them staking at the same time.
The nominal stake interest for BlackCoin is 1%.
These are some other stats:
Specifications
PoS without coin age
Max reorganization depth: 500 blocks
Block time: 64 seconds
Difficulty retarget: every block
PoS Reward: based on 1% inflation + tx fees
Min transaction fee: 0.0001 BLK
Confirmations: 10, maturity: 500
Min stake confirmations: 500
P2P port: 15714, RPC port: 15715