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+.
The four wheel drive can carry raspiberry pi or other embedded elctronic board which can do complex image recognition operation.
We use CC2640R2F(BLE chip) and BMP280 to get the data of air pressure in the mouth of simulaiton baby, and then transmit it to the app we designed.
This is a training project when my team prepared for National Undergraduate Electronic Design Contest in 2015. We need to design an electronic system which can control laser shooting, automatic target reporting and automatic aiming.
This is an electronic design when I attended the 5th Electronic Design Contest of Nanjing University of Information Science and Technology.