Hi all, Just wanted to share a weekend project Ive been working on
An implementation of a Nintendo StreetPass like system for the Cardputer using ESP-NOW.
I used to be a huge fan of StreetPass and the Mii Plaza during the 3DS's heyday and would love to bring that kind of social magic back. My firmware lets nearby Cardputers automatically exchange a short profile message once a day when they pass by each other.
When you get a new "hit," it triggers the integrated LED on the Stamp-S3 to light up green, similar to how the notification light worked on the 3DS. ( I don't actually have a spare Cardputer, so I'm currently using a spare ESP32 to broadcast dummy messages to trigger the hits ). The user can then visit their plaza to visit unread or previos messages.
I understand that there are some limitations with the Cardputer platform itself like the fact that it has no internal RTC battery to keep track of actual time progression when powered off. I also know that projects like Pwnagotchi or LoRa communicators have similar pinging systems, but I would love to build this into a short range Asynchronous social experience rather than just a pure networking tool. Eventually, I'd love to add some kind of minigames system to it.
Would love to hear your thoughts or feedback or if anyone else tackled the lack of an RTC on the Cardputer for daily resets and internal clock without using external hats or bulky addons? Also, let me know if anyone would be interested in the GitHub repo once I clean up the code.