Connect a voice agent to your phone as a Bluetooth headset with a ESP32
Just a bunch of sub-$20 ESP32-A1S components and you can snap a voice agent into your smartphone and take all the calls for you
Connect a voice agent to your phone as a Bluetooth headset with a ESP32 launched on July 13, 2026 with 5 votes, #4,557 of 24,623 launches that month and more than 75% of that year's launches.
What it does
Connect a voice agent to your phone as a Bluetooth headset with a sub-$20 ESP32 - michaellee8/esp32-bluetooth-voice-agent
Experimental firmware for an AI-Thinker ESP32 Audio Kit V2.2 voice-agent handset with a typical total device hardware cost under US$20, excluding the phone/tablet and bridge computer. The included demo sends live microphone audio and conversation data to a free full-duplex voice API endpoint operated by a company in China, which may raise privacy and data-residency concerns. Users can instead self-host MiniCPM-o 4.5 or adapt the bridge to another realtime voice API, including services offered by Western providers; review any provider's privacy and retention terms before sending sensitive audio. The board pairs with a phone or tablet as a Bluetooth HFP Hands-Free Unit, allowing a compatible…from github.com
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