Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

Abstract: Near-Field Communication (NFC) has enabled mobile devices to emulate contactless smart cards, which has also rendered them susceptible to relay attacks. Numerous countermeasures have been ...

Abstract: Urban flooding remains a critical challenge, exacerbated by inadequate drainage systems and the lack of timely early warning mechanisms. This paper presents a sustainable urban flood ...