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The Tianwen ASRPRO offline voice module is connected to Phone Assistant using ESP8266.

Overview

1. Simple block diagram

. 2. Its name
happens to be all black, so I call it "Little Black."
3. The wiring for assembling the speaker inside is soldered like this. Opening the cover too much risks breaking it.

The speaker is directly snapped in. I bought two types of speakers; one was the wrong size .

The speaker positioning and hole size were designed according to this size.

4. Due to video size limitations, the complete video can be viewed on Bilibili.
It also explains the burning timing when not using the official downloaded circuit: https://www.bilibili.com/video/BV1GF4m1N7by

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 07:13:59

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