msFlipper, a Flipper Zero SAO & Badge dev board from Harbinger LTD

This is an add-on board for your Flipper Zero but also a SAO for your electronic badges and much more.

Flipper Zero — Portable Multi-tool Device for Geeks

NARD SAM Expansion Board for Flipper Zero with HID Seos / iCLASS SAM

Flipper Zero gets a limited-edition transparent version - The Verge

msFlipper, a Flipper Zero SAO & Badge dev board from Harbinger LTD

Search For DIY Hardware Products on Tindie

The Galaxia Art Badge 2020 uses a 4017 based circuit to animate a scene based in space.

Galaxia Art Badge 2020 & Free SAO

Flipper Zero (@flipper_zero) / X

Flipper Zero — Portable Multi-tool Device for Geeks

Flipper Zero — Portable Multi-tool Device for Geeks

This Compact Flipper Zero Add-On Provides Badge, SAO Compatibility

Flipper Zero · justcallmekoko/ESP32Marauder Wiki · GitHub

DC27 SAO Flavin Detector Bare Board & InvisibleInk from Harbinger

Flipper Zero — Portable Multi-tool Device for Geeks