#jieli — Public Fediverse posts on home.social

BLE Voice @[email protected] · 2026-05-12 · 15:48 UTC

AC696N GPIO quick reference. APIs: gpio_set_direction (1=input,0=output); gpio_set_pull_up; gpio_set_output_value; gpio_read; gpio_set_hd0 (1=strong drive); gpio_set_die (0=analog for ADC). USB: usb_iomode(0). Output high level = VDDIO voltage. Test each pin with multimeter on dev board. #JieLi #AC696N #EmbeddedSystems

https://lnkd.in/gr8hc-Ks

#jieli #ac696n #embeddedsystems

BLE Voice @[email protected] · 2026-04-08 · 09:48 UTC

Need to recover a bricked Jieli (JL) chip or perform a forced firmware upgrade? My new tutorial covers the JL Forced Download Tool (USB Updater V2.0) from start to finish.

Whether you're an embedded hobbyist or professional, this guide will help you master forced upgrades for JL chips.

Watch here

#Jieli #FirmwareBurning #Embedded #USBUpdater #TechTutorial

#jieli #firmwareburning #embedded #usbupdater #techtutorial

BLE Voice @[email protected] · 2026-04-05 · 17:05 UTC

Bluetooth speakers and headphones often need more than the chip's built-in resources. The JL JieLi AC696N's SPI interface allows you to add external Flash, an LCD display, and RGB LEDs.

All these configurations can be validated on the AC696N development board before porting to custom hardware. Once working, they significantly expand the capabilities of your audio product.

#JieLi #AC696N #SPI #NorFlash #LCD #WS2812 #EmbeddedSystems #PeripheralExpansion #AudioProducts

https://lnkd.in/gQC2sWyA

#jieli #ac696n #spi #norflash #lcd #ws2812

BLE Voice @[email protected] · 2026-04-03 · 16:15 UTC

The serial port is your eyes in embedded debugging. On the JL Jieli AC696N chip, I've set up UART0 to print logs at 1M baud (configurable to any pin) – logs fly without stuttering.

Full configuration steps and code snippets are in the article. If you're working on audio products with AC696N, this workflow will save you hours.

#EmbeddedSystems #Jieli #AC696N #UART #AudioTuning #Debugging

#embeddedsystems #jieli #ac696n #uart #audiotuning #debugging

BLE Voice @[email protected] · 2026-03-30 · 16:46 UTC

Timers seem simple until they cause mysterious power drain or timing issues. The JL JieLi AC696N SDK provides two timer systems with different characteristics. Here's what I've learned debugging on the dev board.

Practical Tip
Test both on the AC696N development board. Add serial prints to see which thread the callback runs in.

Both timer systems support one-shot timeouts—choose whichever fits your context needs.

#JieLi #AC696N #Timers #EmbeddedSystems #Firmware #LowPower #ISR #CaptureMode

#jieli #ac696n #timers #embeddedsystems #firmware #lowpower

BLE Voice @[email protected] · 2026-03-29 · 15:34 UTC

Moving beyond basic low-power configuration on the JL JieLi AC696N, there are three advanced power management settings that can prevent intermittent crashes and improve user experience. Here's what I've learned while debugging an SD-card-based audio product.

All of these can be validated on the AC696N development board before porting to custom hardware. Taking the time to tune them saves weeks of field debugging.

#JieLi #AC696N #PowerManagement #EmbeddedSystems

https://lnkd.in/g7ZYNsBZ

#jieli #ac696n #powermanagement #embeddedsystems

BLE Voice @[email protected] · 2026-03-26 · 16:10 UTC

Getting a new embedded platform's toolchain working can be one of the most frustrating parts of development—especially when you just want to start writing code. The JL JieLi AC696N is a popular chip for Bluetooth audio applications, but the initial Windows environment setup has a few quirks. Here's a clean, verified process to get from zero to compile.

#JieLi #AC696N #EmbeddedSystems #ToolchainSetup #CodeBlocks #FirmwareDevelopment #BluetoothAudio #WindowsDev

https://lnkd.in/ggq9jk6g

#jieli #ac696n #embeddedsystems #toolchainsetup #codeblocks #firmwaredevelopment

BLE Voice @[email protected] · 2026-03-26 · 09:58 UTC

Sometimes the best way to understand a new embedded platform is to see what it can do before writing any code. The JL JieLi AC696N development board ships with a factory demo that showcases its complete multimedia capabilities in under five minutes.

Whether you're evaluating the platform for a project or just want a quick hands-on, this is the fastest way to see what the AC696N can do. Next up in this series: adding custom files to the project.

#JieLi #AC696N #BluetoothAudio #DevBoard

#jieli #ac696n #bluetoothaudio #devboard

BLE Voice @[email protected] · 2026-03-23 · 16:01 UTC

A good pin reference is like a map for hardware development. Here's a verified pin mapping for the JL JieLi AC6966B (AC696N series) development board, straight from actual hardware testing.

Whether you're reviewing schematics, bringing up a custom board, or debugging firmware, having this reference handy saves hours of probing and tracing.
#JieLi #AC696N #AC6966B #Pinout #HardwareDesign #EmbeddedSystems #BluetoothAudio #DevelopmentBoard #UART #ReferenceDesign

https://lnkd.in/ec43rwNn

#jieli #ac696n #ac6966b #pinout #hardwaredesign #embeddedsystems

BLE Voice @[email protected] · 2026-03-22 · 15:40 UTC

Unboxing the JL JieLi AC696N dev board – and it actually comes with everything! 🔌

✅ AC6966B main board
✅ USB download cable
✅ CH340G USB-TTL
✅ Forced download tool
✅ Pre-tested PCBA
✅ Cloud SDK/docs

Factory demo: USB/TF/SPI Flash playback, AUX input, Bluetooth A2DP/HFP.

No hunting for cables. Just start developing. 🎧

#JieLi #AC696N #DevBoard #BluetoothAudio #EmbeddedSystems #Hardware #Unboxing
https://lnkd.in/g6B7YiKy

#jieli #ac696n #devboard #bluetoothaudio #embeddedsystems #hardware

BLE Voice @[email protected] · 2026-03-21 · 16:28 UTC

The JL JieLi AC696N series continues to be a compelling choice for high-volume, cost-sensitive Bluetooth audio applications. Looking at the AC6966B-QFN32 development board, which is a prime example of balancing features and BOM cost.

The dual-mode Bluetooth (Classic + BLE) also enables seamless APP control via BLE transparent transmission, a key feature for IoT-enabled devices.

#JL #JieLi #AC696N #BluetoothAudio #EmbeddedSystems #BLE #IoT #FirmwareDevelopment #SmallSpeaker #CostEffective

#jl #jieli #ac696n #bluetoothaudio #embeddedsystems #ble

BLE Voice @[email protected] · 2026-03-19 · 15:51 UTC

🧵 Exploring the JL JieLi AC6966B – a 44nm Bluetooth 5.1 audio chip built for high‑volume, cost‑sensitive products.

Key specs: 32‑bit DSP with FPU @160MHz, 128KB RAM, 512KB embedded storage, dual DAC/ADC (SNR ≥95/90dB), support for SBC/AAC/MP3/FLAC, UART/SPI/IIC/USB, 21 GPIOs. Ideal for entry‑level speakers and IoT audio nodes. Low power: 3µA in shutdown.

Read the full overview!
#AC6966B #JieLi #Bluetooth #Audio #EmbeddedSystems #IoT #DSP #CostEffective

https://lnkd.in/ebKK9wyS

#ac6966b #jieli #bluetooth #audio #embeddedsystems #iot

BLE Voice @[email protected] · 2026-03-17 · 16:02 UTC

🧑‍💻 Working with JL JieLi AC696N SDK? Need to add custom source files? This step-by-step guide shows you exactly how to include them in the build and verify compilation under the "Release" target. Perfect for embedded developers and firmware engineers!
#EmbeddedSystems #AC696N #JieLi #Firmware #SDK #IoT

#embeddedsystems #ac696n #jieli #firmware #sdk #iot

BLE Voice @[email protected] · 2026-01-21 · 15:03 UTC

The analog section of a Bluetooth audio SoC is where careful design pays off. Notes from the JieLi AC695N/AC696N guide:

For the DAC outputs, they recommend reserving positions for small inductors (100nH, 120nH, 220nH, 330nH) to form filters that can suppress high-frequency noise, specifically called out as TDD noise from a nearby mobile phone during calls.

#JieLi #AC696N #AudioDesign #Analog #PCBDesign #Electronics #OpenHardware #BluetoothAudio

https://lnkd.in/gRRab4Vi

#jieli #ac696n #audiodesign #analog #pcbdesign #electronics

BLE Voice @[email protected] · 2026-01-21 · 15:03 UTC

The analog section of a Bluetooth audio SoC is where careful design pays off. Notes from the JieLi AC695N/AC696N guide:

For the DAC outputs, they recommend reserving positions for small inductors (100nH, 120nH, 220nH, 330nH) to form filters that can suppress high-frequency noise, specifically called out as TDD noise from a nearby mobile phone during calls.

#JieLi #AC696N #AudioDesign #Analog #PCBDesign #Electronics #OpenHardware #BluetoothAudio

https://lnkd.in/gRRab4Vi

#jieli #ac696n #audiodesign #analog #pcbdesign #electronics

BLE Voice @[email protected] · 2026-01-21 · 15:03 UTC

The analog section of a Bluetooth audio SoC is where careful design pays off. Notes from the JieLi AC695N/AC696N guide:

For the DAC outputs, they recommend reserving positions for small inductors (100nH, 120nH, 220nH, 330nH) to form filters that can suppress high-frequency noise, specifically called out as TDD noise from a nearby mobile phone during calls.

#JieLi #AC696N #AudioDesign #Analog #PCBDesign #Electronics #OpenHardware #BluetoothAudio

https://lnkd.in/gRRab4Vi

#jieli #ac696n #audiodesign #analog #pcbdesign #electronics

BLE Voice @[email protected] · 2026-01-21 · 15:03 UTC

The analog section of a Bluetooth audio SoC is where careful design pays off. Notes from the JieLi AC695N/AC696N guide:

For the DAC outputs, they recommend reserving positions for small inductors (100nH, 120nH, 220nH, 330nH) to form filters that can suppress high-frequency noise, specifically called out as TDD noise from a nearby mobile phone during calls.

#JieLi #AC696N #AudioDesign #Analog #PCBDesign #Electronics #OpenHardware #BluetoothAudio

https://lnkd.in/gRRab4Vi

#bluetoothaudio #openhardware #electronics #pcbdesign #analog #audiodesign

BLE Voice @[email protected] · 2026-01-21 · 15:03 UTC

The analog section of a Bluetooth audio SoC is where careful design pays off. Notes from the JieLi AC695N/AC696N guide:

For the DAC outputs, they recommend reserving positions for small inductors (100nH, 120nH, 220nH, 330nH) to form filters that can suppress high-frequency noise, specifically called out as TDD noise from a nearby mobile phone during calls.

#JieLi #AC696N #AudioDesign #Analog #PCBDesign #Electronics #OpenHardware #BluetoothAudio

https://lnkd.in/gRRab4Vi

#jieli #ac696n #audiodesign #analog #pcbdesign #electronics

BLE Voice @[email protected] · 2026-01-10 · 05:52 UTC

For the #electronics and #embedded crowd: a concise summary of the hardware design guide for JieLi AC695N/AC696N Bluetooth audio SoCs.

It offers crucial DFM advice: you MUST provide test points for the programming pins (USB, power), as the small QFN package necessitates programming after SMT assembly via a USB connection.

#JieLi #AC696N #HardwareDesign #BluetoothAudio #PCBDesign #CrystalOscillator #OpenHardware

https://lnkd.in/g3BHgwXJ

#electronics #embedded #jieli #ac696n #hardwaredesign #bluetoothaudio

BLE Voice @[email protected] · 2026-01-10 · 05:52 UTC

For the #electronics and #embedded crowd: a concise summary of the hardware design guide for JieLi AC695N/AC696N Bluetooth audio SoCs.

It offers crucial DFM advice: you MUST provide test points for the programming pins (USB, power), as the small QFN package necessitates programming after SMT assembly via a USB connection.

#JieLi #AC696N #HardwareDesign #BluetoothAudio #PCBDesign #CrystalOscillator #OpenHardware

https://lnkd.in/g3BHgwXJ

#electronics #embedded #jieli #ac696n #hardwaredesign #bluetoothaudio

BLE Voice @[email protected] · 2026-01-10 · 05:52 UTC

For the #electronics and #embedded crowd: a concise summary of the hardware design guide for JieLi AC695N/AC696N Bluetooth audio SoCs.

It offers crucial DFM advice: you MUST provide test points for the programming pins (USB, power), as the small QFN package necessitates programming after SMT assembly via a USB connection.

#JieLi #AC696N #HardwareDesign #BluetoothAudio #PCBDesign #CrystalOscillator #OpenHardware

https://lnkd.in/g3BHgwXJ

#electronics #embedded #jieli #ac696n #hardwaredesign #bluetoothaudio

BLE Voice @[email protected] · 2026-01-10 · 05:52 UTC

For the #electronics and #embedded crowd: a concise summary of the hardware design guide for JieLi AC695N/AC696N Bluetooth audio SoCs.

It offers crucial DFM advice: you MUST provide test points for the programming pins (USB, power), as the small QFN package necessitates programming after SMT assembly via a USB connection.

#JieLi #AC696N #HardwareDesign #BluetoothAudio #PCBDesign #CrystalOscillator #OpenHardware

https://lnkd.in/g3BHgwXJ

#openhardware #crystaloscillator #pcbdesign #bluetoothaudio #hardwaredesign #ac696n

BLE Voice @[email protected] · 2026-01-10 · 05:52 UTC

For the #electronics and #embedded crowd: a concise summary of the hardware design guide for JieLi AC695N/AC696N Bluetooth audio SoCs.

It offers crucial DFM advice: you MUST provide test points for the programming pins (USB, power), as the small QFN package necessitates programming after SMT assembly via a USB connection.

#JieLi #AC696N #HardwareDesign #BluetoothAudio #PCBDesign #CrystalOscillator #OpenHardware

https://lnkd.in/g3BHgwXJ

#electronics #embedded #jieli #ac696n #hardwaredesign #bluetoothaudio

BLE Voice @[email protected] · 2025-10-16 · 12:09 UTC

For developers using JieLi chips: A clear guide on updating the firmware of your JieLi Forced Upgrade Tool hardware.