Designing a badge for another conference, BIZIT 2015, was even more challenging. It is being organized by PC Press, our computer magazine publisher, on November the 3rd and 4th.

The conference in question was Aramcon 2019, a private tech event in Israel, and the badge has an nRF52840 driving an e-ink display, multi-colour LED, and an audio codec, with a set of full-size ...