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Round TFT knob control and display module assembly
TFT Display · Custom Design

Round TFT Knob Control and Display Module

A compact assembly combining a round TFT display, rotary interaction and control PCBA for audio equipment, smart hardware and products that need a circular human-machine interface.

LVGL UICustom interface content and interaction flows
Serial CommunicationExchange status and control data with the host device
Voice PromptsCustom prompt content and playback implementation
Custom PCBAProject-specific interfaces, mechanics and functions
WORKING DEMO

Physical interaction and module construction

The video demonstrates the circular UI and control interaction. Full video data loads only when this detail page is opened and playback begins.

CUSTOMIZATION

Adapted around the customer's product

These customization directions are supported by the current product materials. Final interfaces, mechanics and software scope are defined during project evaluation.

UI

Interface and Interaction

Design product-specific screens, status pages and operating flows with LVGL.

IO

Serial Communication and Control

Implement status display and control commands around the host device protocol.

PCB

PCBA and Interfaces

Adapt the board to mechanical space, peripheral devices and connection requirements.

VO

Voice Prompts

Design voice feedback and a matching speaker solution around the product workflow.

APPLICATIONS

For products requiring a compact circular interface

Audio Equipment Control

Volume, mode, input source, EQ presets and device status.

Smart Hardware Panels

Combine display, rotary operation and voice feedback in one control unit.

Custom Human-Machine Interfaces

A custom option for products with limited space or a differentiated industrial design.

INFORMATION STATUS

Confirmed and pending specifications are managed separately

Physical samples, PCBA images, UI screens and a demonstration video are currently available for solution discussions. A formal specification still requires additional hardware details.

  • Confirmed: custom LVGL UI direction
  • Confirmed: serial communication direction
  • Confirmed: voice prompts and custom PCBA development
  • Confirmed: round display and rotary control assembly

To be added to the formal specification

Display diameter and resolution, viewing angle and brightness, supply voltage and power consumption, serial levels and protocol, rotary encoder specifications, audio output parameters, board and mounting dimensions, operating temperature and EMC requirements.

START A PROJECT

Provide the mechanical envelope and functional requirements to begin

Useful inputs include the device application, target round-display size, host communication method, number of UI screens, voice-prompt requirements and expected quantity.

Contact Engineering