Model: TJC4832T135_011R

Overview:
T1 series, 3.5-inch resistive touch screen
Resolution: 480 × 320
Model: TJC4832T135_011R (Front View)

TJC4832T135_011R – Hardware Configuration Diagram

One major advantage of this display is that you can quickly design the desired UI via a PC-based tool using a drag-and-drop interface.

USART HMI Software

Ai-WV01-32S Module

The Ai-WV01-32S is a compact voice interaction module that can connect to the XiaoZhi AI agent.
It integrates the BL602 and VB6824 chips as core processors and is designed specifically for lightweight intelligent voice scenarios.

Key features:

High integration

  • Excellent cost-performance ratio
  • Supports offline voice wake-up
  • Supports voice interruption

It can be widely used in:

  • AI voice products
  • Audio & video multimedia
  • Internet of Things (IoT)
  • Mobile devices
  • Smart home applications

The Ai-WV01-32S can be considered a miniaturised version of AiPi-PalChatV1, packaging both the Ai-WB2-12F and VB6824 into a single module.

The firmware is shared with AiPi-PalChatV1.
The default factory firmware is the commercial version. Once the open-source version is flashed, it seems impossible to revert back. However, device management is still handled through Ai-Thinker’s cloud service.

Firmware List

The above is the firmware version as of December 10, 2025. Firmware updates are quite fast, and Anyka will quickly resolve any firmware issues.

This is very good. In addition, there are now more open-source codes available, making secondary development very convenient.

Repository address： https://gitee.com/Ai-Thinker-Open/aipi-palchatv1

For the use of the Ai-WV01-32S module, please refer to

https://bbs.ai-thinker.com/forum.php?mod=viewthread&tid=47336&_dsign=b14e8213

The circuit in the post is relatively simple, allowing the module to be started and communicate directly via a serial port tool. Reference circuit:

PCB

I designed a board for the Ai-WV01-32S module, and the process was full of ups and downs. However, it was finally completed. Putting aside whether the board is well-designed or not, the key is that it works.

It's my first time drawing, so many parts are referenced, and some are suggested in the specification document. I hope any errors can be pointed out. Also, Mr. Mo does not recommend using CH340E, saying that the baud rate is insufficient.

The welding technique was lacking, leaving the module dirty.

This JLCPCB purple color looks pretty good. Later, some modifications were made to the board. Initially, the label for the MIC was written as 'MIC-', and 'AGND' was labeled as 'AGND', which caused the negative terminal of the microphone to not be connected to AGND.

As a result, the voice could not be heard. Later, it was found that a wire was missing. Now the PCB has been fixed. The CH340E was powered by VCC, causing the serial port TXD and RXD voltages to be 5V, which did not meet the module's requirements.

After being reminded by a group friend, the power supply was changed to 3.3V, and the serial port voltage became 3.3V; this needs to be noted. In addition, the TXD and RXD of the CH340E need to be cross-connected to the TXD and RXD of the module.

However, due to unfamiliarity with the chip, the lines were directly connected during schematic design, resulting in no serial output.

Another part not shown here is Home Assistant (HA) device control.

References:
https://bbs.ai-thinker.com/forum.php?mod=viewthread&tid=47149&extra=page=1&_dsign=e5a7edd0

https://bbs.ai-thinker.com/forum.php?mod=viewthread&tid=47208&highlight=%E5%B0%8F%E7%86%8A&_dsign=9d0249c9

Currently, there is a plugin available in HACS that works quite well. However, if the device name or area is not clearly defined, control may fail.