Nearly everybody in a shared workplace wears a plastic identification badge and an RFID-based entry card. And conferences notoriously give attendees one-time use paper-based badges. As a reprogrammable resolution, networking tools firm Eurolan has launched a reference platform that mixes these features into an digital choice. GGtag is an ePaper badge with programmable RFID. And it may be programmed with a cellular system through an online app and sound!
GGtag’s principal characteristic is the three.52″ ePaper show pushed by an RP2040 microcontroller. A second microcontroller, a Microchip ATtiny85, emulates RFID tags utilizing a firmware referred to as avrfid. A single coin cell battery, or USB, powers the whole badge. This mixture of options makes GGTag splendid for shared workspaces and even as a reusable convention badge.
There are two methods to program it. The primary is simple: it’s through USB. Another technique, nevertheless, makes use of a PDM microphone for audio-based programming.
GGtag makes use of a library referred to as ggwave to ship information through sound. It’s an FSK-based protocol with transmission speeds as much as 16 bytes per second whereas utilizing error correction codes. One benefit of this technique is you can program a number of GGTags concurrently.
Mario Instance (through ggtag.io device)
A web-based interface permits you to design the e-paper badge with textual content, icons, and pictures. Then you need to use it to program a GGtag with both technique. Nearly any cellular system may be an audio programmer by taking part in the encoded sound stream. For USB/serial programming, your internet browser should assist the Net Serial API (reminiscent of Chrome on desktop and Android.)
The GGtag design recordsdata are open supply and out there in a GitHub repository. It has the schematic as a PDF, PCB as gerbers, and several other demo badges. Quickly documentation will even be there, however at the moment, solely an overview is out there.
Eurolan has a Crowd Provide marketing campaign for GGtag within the preliminary stage. Go to that web page to affix a mailing listing to know when the marketing campaign goes reside.