Hardware, as they say, is hard. In helping develop the concept of Business Cards+ into a fully realised, mass manufactured product that ships worldwide, we faced a series of engineering challenges of which needed some clever thinking to overcome. I’d like to share some of these with you in this post. To set the scene, in 2014 MOO restarted a project whose aim was to embed NFC chips into its business cards, transforming them into a smart, connected product.