@blevoice

Junluan Tsui

@blevoice

Embedded electronics engineer, devoting to developing products and projects related to Bluetooth chips/modules, voice chips/modules.

Joined July 2025

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Junluan Tsui's blogs

Bluetooth and Voice chip - Dev. and App.ble-voice.hashnode.dev67 posts

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Recently published

JTJunluan Tsuible-voice.hashnode.devJun 1 · 2 min read

JL Engineer's Work Log 2: Adding Custom Prompt Tones on Jieli Bluetooth Audio SoC (AC696N Series/AC6966B)

Introduction The JL AC696N development board comes with predefined prompt tones. Since developers often need to add their own tones, this guide uses the AC6966B chip as an example to explain how to a

JTJunluan Tsuible-voice.hashnode.devMay 12 · 3 min read

JL JieLi AC696N Series Development GPIO Control Encyclopedia: Modes, APIs, and Special Pins

Introduction GPIO configuration seems simple, but there are plenty of cases where things go wrong. If the drive strength isn't set correctly, an LED might be too dim or not light at all. Without prope

JTJunluan Tsuible-voice.hashnode.devApr 5 · 3 min read

JieLi AC6966B Development Board Peripheral Expansion: JL AC696N SPI Drives Flash, LCD, and RGB LEDs

Introduction For products like Bluetooth speakers and headphones, the chip's built-in resources are rarely enough—you need external Flash to store prompt tones, an LCD to display status, and a few RGB

JTJunluan Tsuible-voice.hashnode.devApr 3 · 3 min read

JL Jieli AC696N Series Chip Debugging Tool: UART Serial Print Configuration and Online Tuning

Introduction The serial port is truly the "eyes" of a developer – that statement is no exaggeration. In embedded debugging, if you can't get logs out, it's like working blindfolded. The UART configura

JTJunluan Tsuible-voice.hashnode.devMar 30 · 4 min read

JL JieLi AC696N Series Chip Development – Timer Detailed Explanation: Differences and Selection Between sys_timer and usr_timer

Introduction Timers seem simple, but using them in the wrong place either increases power consumption or causes timing inaccuracies—and debugging can be quite troublesome. The JL JieLi AC696N SDK prov

Junluan Tsui

About

Available for

Junluan Tsui's blogs

Recently published

JL Engineer's Work Log 2: Adding Custom Prompt Tones on Jieli Bluetooth Audio SoC (AC696N Series/AC6966B)

JL JieLi AC696N Series Development GPIO Control Encyclopedia: Modes, APIs, and Special Pins

JieLi AC6966B Development Board Peripheral Expansion: JL AC696N SPI Drives Flash, LCD, and RGB LEDs

JL Jieli AC696N Series Chip Debugging Tool: UART Serial Print Configuration and Online Tuning

JL JieLi AC696N Series Chip Development – Timer Detailed Explanation: Differences and Selection Between sys_timer and usr_timer

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Junluan Tsui

About

Available for

Junluan Tsui's blogs

Recently published

JL Engineer's Work Log 2: Adding Custom Prompt Tones on Jieli Bluetooth Audio SoC (AC696N Series/AC6966B)

JL JieLi AC696N Series Development GPIO Control Encyclopedia: Modes, APIs, and Special Pins

JieLi AC6966B Development Board Peripheral Expansion: JL AC696N SPI Drives Flash, LCD, and RGB LEDs

JL Jieli AC696N Series Chip Debugging Tool: UART Serial Print Configuration and Online Tuning

JL JieLi AC696N Series Chip Development – Timer Detailed Explanation: Differences and Selection Between sys_timer and usr_timer