Show HN: A DIY airgapped, e-ink TOTP device (karmanyaah.malhotra.cc) 12 points by karmanyaahm 3y ago ↗ HN
[–] wkat4242 3y ago ↗ Interesting. I wonder what the battery life is though on that single CR2032. [–] karmanyaahm 3y ago ↗ With my usage of checking OTPs 3-4 times a week, it lasts for ~3 months.
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