You could easily modify the case – available here on Thingiverse – to hold an actual key (or USB key), perhaps a mini spool of ‘on the go’ solder, or a NFC transponder — regardless of what you put in your pass you are already authorized to represent the Strategic Homeland Intervention, Enforcement and Logistics Division 😉
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Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey