full car keyless entry system

This project consisted of designing both the transmitter and receiver of a car keyless entry system with among the embedded firmware. The goal was to pass the hard test plan of Peugeot with improvement in security and power consumption. The core of the crypto engine was designed based on Keeloq protocol which is a flagship in this industry. The other challenges were designing the onboard PCB antenna because the transmitting range should be limited to 40 meters (not fewer, not even more).