This project combines ethereum smart contract and IPFS to complete the generation of DID. User will have an android application, IoT device chooses LPC55S69 chip(Cortex M33), ESP32(WiFi) and HC05(Bluetooth).
This is a demonstration system about charging payment based on blockchain between electrical vehicle and charging pile, which has been used in two galleries.
This is project about charging payment between electrical vehicle and charging pile based on blockchain. I tranformed the charging pile with raspiberry pi 3B+.