Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Processor | Jieli AC791N Dual-Core Cortex-M4F |
| Flash Memory | 16 MB SPI Flash (expandable) |
| RAM | 512 KB SRAM |
| Connectivity | Bluetooth 5.3, FM Radio Receiver |
| Audio Interface | I2S, PCM, Analog MIC/Line-in |
| Debug Interface | SWD, UART0 for logging |
| Power Supply | 3.3V DC via USB or Pin Header |
| Onboard Peripherals | RGB LED, 2 User Buttons, Reset Switch |
| Supported IDEs | JL SDK, VS Code with Plugin |
| Package Contents | Main Board, USB Cable, Jumper Wires, Quick Start Guide |
Anonymous
Mar 30, 2026
Rating: 5/5
Clean audio output
The DAC quality on this board is impressive for a development kit. I was able to prototype a high-fidelity wireless receiver with minimal noise interference.
Anonymous
Mar 26, 2026
Rating: 4/5
Good for university projects
Used this for my senior design project. The community support is growing, which helped when I got stuck. Only wish the pinout diagram was printed directly on the PCB.
Anonymous
Mar 25, 2026
Rating: 5/5
Perfect for Bluetooth Audio Projects
This board is exactly what I needed for my custom speaker project. The AC791N chip handles audio decoding smoothly, and the SDK documentation is surprisingly detailed for this price point.
Anonymous
Mar 23, 2026
Rating: 4/5
Great value, minor setup hurdles
Hardware quality is solid. Had some trouble initially configuring the toolchain on Linux, but once set up, flashing and debugging worked flawlessly. Highly recommend for intermediate users.
Anonymous
Mar 10, 2026
Rating: 5/5
Robust and reliable
Been running this board continuously for two weeks in a stress test. No crashes or overheating issues. The power management features are well implemented.
Anonymous
Mar 06, 2026
Rating: 5/5
Excellent learning platform
Bought this to learn about low-power Bluetooth development. The example projects included in the package cover everything from basic GPIO to complex audio streaming. Very satisfied.
Q: Is there a schematic available for download?
A: Yes, the full schematic and PCB layout files are available in the 'Resources' section of the product page under the Downloads tab.
Q: What is the maximum sampling rate for the ADC?
A: The onboard ADC supports a maximum sampling rate of 200 ksps with 12-bit resolution, suitable for most sensor and audio applications.
Q: Does this board support over-the-air (OTA) updates?
A: Yes, the AC791N series supports OTA firmware updates via Bluetooth or UART. Sample code is provided in the official SDK.
Q: Can I use this board with Arduino IDE?
A: Currently, the board is primarily supported by the Jieli SDK. There is no official Arduino core yet, though some community ports are in early development stages.
Q: What voltage level are the GPIO pins?
A: All GPIO pins operate at 3.3V logic levels. Please do not connect 5V devices directly without a level shifter to avoid damage.
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