Circular knob

1.85‑inch Rotary Screen Module – Compact yet Powerful Smart Interaction Solution

I. Opening Overview

Are you looking for a display solution that is both compact and feature‑rich? Our 1.85‑inch rotary screen module combines cutting‑edge hardware with intuitive control to deliver a brand‑new interaction experience. The module features a 360×360 IPS fully‑laminated capacitive touchscreen that produces crisp, vivid images; you can operate it either by touching the screen or by turning the Circular knob for precise adjustment – the two interaction modes are freely interchangeable. At its heart is the highly integrated ESP32‑S3R8 dual‑core processor running at up to 240 MHz, providing ample computing power. Built‑in dual‑band Wi‑Fi and low‑energy Bluetooth 5.0 ensure stable, smooth wireless connectivity. A rich set of expansion interfaces is compatible with Arduino IDE, ESP‑IDF, MicroPython, and our proprietary development platform, making the module flexible enough for smart home control, portable devices, industrial equipment control, and many other scenarios. From the moment you unbox it, you get full wireless connectivity, rich multimedia features, and extensive customisation possibilities – all packed into a compact enclosure.

Technical Specifications

II. Why Choose Our Product

We designed our product with your user experience in mind, making it easy to turn your ideas into reality quickly. You receive a plug‑and‑play solution that eliminates the need for cumbersome hardware assembly and driver configuration. The dual‑core ESP32‑S3R8 processor runs stably at 240 MHz, handling all computing requirements from the ground up. The module supports Arduino IDE, ESP‑IDF, MicroPython, and our own GUITON graphical development platform – whichever toolchain you are familiar with, you can work efficiently in your preferred environment. Our GUITON platform offers a rich library of UI controls; you can complete your interface layout simply by dragging and dropping, and with cross‑platform online debugging, development cycles are significantly shortened, allowing you to focus more on product innovation.

III. Key Advantages

Multimedia Entertainment Hub

•  Computer secondary display function with 18 built‑in AIDA64 monitoring styles for real‑time system status

•  Real‑time audio spectrum analysis that turns sound dynamics into eye‑catching visualisations

•  Bluetooth audio playback with volume adjustment and playback control

•  Digital photo frame mode that cycles through your favourite pictures

•  MJPEG video decoding for smooth playback of animations and short clips

•  E‑book text reader supporting TXT format files

Smart Interactive Features

•  Rotary screen control, working with theCircular knobfor fine parameter adjustment and menu navigation

•  Built‑in vibration motor that provides clear haptic feedback during operation

•  Three dynamic clock display interfaces, freely switchable

•  High‑sensitivity capacitive touchscreen supporting swipe and tap operations

•  Battery power support for portable use

Developer‑Friendly Design

•  Straightforward secondary development process with no complicated environment setup

•  Support for three development modes: Arduino, IDF, and GUITON, offering flexible choices

•  Remote firmware upgrade capability for continuous project iteration

•  Multi‑language display support (UTF‑8 encoding) to meet international needs

•  Comprehensive online documentation, sample code, and community support

IV. Application Scenarios

With its great flexibility and high integration, this 1.85‑inch rotary screen module is widely applicable in the following areas:

•  Consumer Electronics: smart home controllers, desktop monitoring devices, portable media players, creative digital gadgets

•  Industrial Equipment: 3D printer HMI, instrument panels, handheld testing terminals, automation control panels

•  Medical & Healthcare: medical device interfaces, massager control panels, health monitoring displays

•  Automotive: auxiliary dashboard displays, charging pile panels, in‑vehicle infotainment accessories

•  Audio & Entertainment: audio spectrum displays, Bluetooth speaker control panels, audio equipment parameter adjusters

•  IoT Devices: smart home gateways, sensor data dashboards, environmental monitoring terminals

In real‑world use – whether adjusting volume, setting temperature, or navigating menus – the centrally located Circular knob offers a more direct and refined control feel than traditional buttons, making it especially suitable for scenarios that require frequent parameter changes.

Product Features

•  Powerful Performance: ESP32‑S3R8 dual‑core CPU at 240 MHz, handling all types of computing tasks with ease

• Rich Connectivity: built‑in Wi‑Fi and Bluetooth 5.0 for stable, low‑latency wireless communication

• Excellent Display: IPS fully‑laminated capacitive screen with wide viewing angles, vivid colours, and good outdoor readability

• Flexible Development Environment: supports multiple development platforms to suit different skill levels

• Highly Integrated Design: onboard microphone, speaker driver, and TF card slot – no extra external components needed

• Expandable Storage: 16 MB Flash providing ample space for your programs and media assets

Why Partner with Us?

Shenzhen Jingcai Intelligent Co., Ltd. has long been dedicated to human‑machine interface display solutions, specialising in the USART‑HMI serial screen field, with product sizes ranging from 1.28 inches to 21.5 inches. Our deep technical expertise and industry experience are backed by a team of senior hardware and software engineers who thoroughly understand the practical needs of various application scenarios.

Our proprietary GUITON graphical development platform allows you to build professional‑grade UI interfaces quickly without extensive programming knowledge. With its intuitive drag‑and‑drop operation and rich control libraries and style templates, you can turn your design concepts into working products rapidly.

We offer more than just hardware. Our experienced R&D and support teams provide full‑cycle assistance – from project evaluation and solution design to mass production. Need customisation? We can tailor the mechanical structure, UI design, firmware, and hardware modifications to precisely match your project specifications.

Quality Assurance

We strictly enforce quality control throughout the entire process – from component sourcing to production assembly, with standard operating procedures and inspection checkpoints at every stage. Each module undergoes comprehensive functional testing and ageing verification before shipment, ensuring that you receive a stable and reliable product. Our unwavering commitment to quality provides a solid foundation for your project’s success.

Should you encounter any technical issues, our support team responds quickly with clear, actionable solutions. The smooth delivery of your project is our top priority.

Contact Us

Ready to add brilliance to your project with our 1.85‑inch rotary screen module? We are here to help you get started.

For product enquiries, technical support, or custom solutions, please contact our team:

Email: david@guition.com

Our engineers will reply promptly with the information and assistance you need. Whether you are placing your first trial order or require long‑term development support, we are fully committed to your success. The Circular knob – along with every carefully designed detail on the module – awaits to empower your creativity.

Shenzhen Jingcai Intelligent Co., Ltd. – your trusted partner for smart display solutions.