Products & Toolshardware hackwearable ailow power voice
Cobalt Builds AI Voice Wearable Inside Casio F91W
5.3
Cobalt embeds an AI voice wearable into a Casio F91W using nRF52840, a PDM mic, IMA ADPCM, BLE 2Mbps and Groq Whisper. It runs 4 months on a CR2016 battery and pairs with a custom voice assistant app.
Key Points
- 1Hardware hack packs nRF52840, a PDM mic and Groq Whisper into a Casio F91W watch.
- 2Uses IMA ADPCM and BLE 2Mbps to compress and stream audio for low-power operation.
- 3Achieves 4 months battery life on a CR2016, enabling practical always-on wearable voice features.
Scoring Rationale
Niche hardware demonstration shows practical low-power, on-device voice with Groq Whisper, valuable for wearable and edge engineers. It is an interesting maker-level advance rather than a broad industry shift.
Sources
Public references used for this report.
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