Compute
- MCU
- STM32
- Runtime
- FreeRTOS
Anonymous consumer electronics case
STM32 LVGL interface for a circular hair dryer display
An anonymous consumer electronics manufacturer needed a 240 x 240 hair dryer interface that combined clear operating states with animated visual modes.
Target context
One circular display interface with operating states and animated modes. The customer supplied an initial ui design draft.
Display
- Panel
- 1.3-inch IPS TFT
- Resolution
- 240 x 240
- Driver
- ST7789V
- Interface
- 4-line SPI
- Color
- 16-bit RGB565
Interaction
- Input
- Physical mechanical buttons
- Display count
- One
Challenge and work
The customer wanted more than a static implementation of the initial UI draft. Animated mode visuals also needed to work as part of the product interface.
Customer role: The customer answered clarification questions and approved the design and demonstrated result.
- Refined the initial draft into a complete interface design for customer approval.
- Prepared and integrated animated visual sequences with the UI states.
- Produced standardized LVGL source for the agreed interface.
- Prepared the communication protocol documentation for handoff.
Verification and handoff
PanelSprint supplied simulator demonstration videos after development for customer review.
A 50% deposit started the project. Source code and documentation were released after the demonstrated result was accepted and the final 50% was paid.
Delivered
- Approved interface design
- Standardized LVGL source code
- Communication protocol document
- Simulator demonstration videos
Supported results
- The customer reviewed the complete design before development was finalized.
- Animated visual modes were combined with the agreed UI states.
- The handoff included LVGL source and communication protocol documentation.
Have a UI draft and a target display?