Ethereum-Wallet-in-python use BlE as a connection with phone or pc Wallet.py : A api that working with Ethereum mnemonic.py : Help me to turn private key to 24 strings More information : https://github.com/trezor/python-mnemonic Characteristic.py : Using pybleno.py More information : https://github.com/Adam-Langley/pybleno Ctr.py It's a kind of Counter mode cryption that I use to encrypt the message sended between devices.