High Security Bare Metal Bluetooth Blockchain Payment Terminal For Trusted Ethereum Transaction

Abstract

This demonstration presents an innovative Bluetooth blockchain payment terminal (PBT), built over an Arduino AVR processor, with a touch screen, a smartcard reader socket and a Bluetooth module. The system is bare metal, i.e. firmware's (both BPT and Bluetooth module) can be fully uploaded on-demand. The demo shows an Ethereum blockchain transaction protocol (BTP), performed between a user equipped with a BPT and a merchant using a mobile phone connected to Internet.