E-ink event Badge #97
Description
Excuse my crude drawing.
So here is the Idea. I am planing on making a badge will be provided to EVERY attendee in a conference. So this means to keep the cost down, no active components on the badge itself.
Instead, attendees will be required to plug in their badges to a console at the registration desk and modify the badge if they so required.
Figure 1.: A 2.9 inch E-ink Display module. Same as the one provided by waveshare that can directly be controlled over SPI.
Figure 2. A Component-less PCB on which this E-ink module will be stuck. All the PCB does is to convert the FPC on the e-ink display to a On-PCB board to board connector, kind of like the one that's on a micro-bit or PCI cards. This is done to strengthen up the e-ink display and preventing people from interacting with the FPC connector.
Figure 3: This is the actual mezzanine, this has all the active and passive components like level shifters etc. This sits on a 96boards CE board on the registration desk and the PCB in Fig.2 plugs into this. then people can doodle images on their badge. Now, I do plan on adding a FPC connector as well apart from the Board-to-Board interconnect so that this mezzanine can be utilized as a generic E-Ink display mezzanine for 96Boards.
This setup helps us to reduce the cost and instead of having to make a few hundred PCBs with active and passive components we can get away with just a couple.