TLDR
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Open-source LTE kit phone by Justine Haupt featuring a real rotary dial, mechanical ringer, dual displays, and a hardware microphone kill switch.
Key Takeaways
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Pocket-sized (11x7.5x3cm, 163g), LTE/VoLTE with 3G fallback, using uBlox LARA-R6401/6801/6001 modem variants by region.
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ATMega2560V runs an Arduino bootloader; firmware, KiCad schematics, and STEP files are fully open source.
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No soldering required for assembly, but marked as advanced; network carrier approval still pending.
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Contacts stored as plain text on MicroSD; rear ePaper display is bistatic (zero energy to hold static image).
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Hardware microphone disconnect switch, mechanical power slide switch, and rotary dial naturally resist accidental dialing.
Hacker News Comment Review
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