Boosting UI creativity with rotary knob displays


Oct 18, 2022

We have an exciting range of circular displays available expanding customers’ opportunities to create innovative user interfaces integrating a rotary switch. 

Display sizes include 1.3" (with SPI or UART interface), 2.1", and 2.47" (MIPI or UART interface), making them ideal for applications such as heating systems, industrial controls, IoT devices, boilers, white goods, fitness equipment, audio equipment.

Each display leverages IPS TFT technology to ensure a wide viewing angle and excellent colour with a high contrast ratio. These circular displays are available as circular display modules without the rotary housing and are available with a converter board for rapid evaluation.

The rotary switch functionality provides convenient and intuitive adjustments such as temperature, volume, motor speed, timer settings, lighting, dimming and ambience control settings. The switch is operated by turning a perimeter ring, which provides a tactile response to confirm the selection and hold the switch in position.

Circular displays represent an opportunity to grab customers’ attention and create an almost infinite range of imaginative effects. Examples include making a timer count up or down by illuminating or turning off graduations around the edge, darkening or brightening the display as the user adjusts a lighting dimmer, or changing the backlight colour of a heating or air-conditioning controller depending on the user’s setting.

Our in house engineering team can support customers from first choosing their display, user-interface design, and software development, to integrating features such as optical coating and touch sensing.

rotary switches for volume control

Further developments which will be added to the Anders circular display solutions later this year include a radial graphics evaluation kit that includes a microcontroller board and software libraries. The kit will help customers quicky get a GUI up and running on a circular display and includes code examples optimised for circular applications that simplify software development.

Get in touch if you want to discuss your next project.