The rotary screen is an intelligent interactive device that usually consists of a circular knob and a display. The knob can be rotated to control various functions, while the display is used to display relevant information.
ESP32 Display - 2.1 inch rotary screen, uses high-performance ESP32-S3 chip, equipped with 32-bit dual-core chip. The maximum clock frequency reaches 240MHz, with strong performance and easy to handle complex tasks.
Supports 2.4G WiFi and BLE low-power Bluetooth, to achieve reliable wireless communication, easily connect to the Internet, suitable for smart home, industrial control, portable devices and other scenarios.
Supports capacitive touch operation and knob input, the knob supports clockwise, counterclockwise rotation and full press operation, smooth feel, and various interaction methods.
The 5V charging interface supports both power supply and program burning, and is also equipped with three expansion interfaces: UART, I2C, and FPC, to meet various development needs.
It supports Arduino IDE, Espressif IDF, Lua RTOS, Home Assistant/PlatformIO/Micro Python, and supports the LVGL library; you can design the UI interface yourself. It is an ideal platform for DIY projects like a mechanical keyboard knob.
ESP32 Display - 2.1 inch rotary knob screen is not just an interactive module, but an intelligent interaction solution that combines high performance, multi-function, and ease of use. Whether you are an IoT developer, smart home enthusiast, or professional, you can find an efficient tool that meets your needs.
Self-developed by Elecrow with exclusive design.
Rotary input with smooth feel
Support multiple development environments
Compatible with LVGL graphics library
Application Scenarios
Details Overview
Who Needs This?
Makers/open source hardware enthusiasts: DIY smart home controllers, light regulators, desktop instruments, custom input devices, etc.
Home appliance or IOT manufacturers: develop customized control equipment, shorten product design cycle, intend to mass produce, etc.
Education and training institutions: provide teaching kits for courses related to embedded systems, the Internet of Things, and UI design, which are easy for students to get started and intuitive to operate.
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Main Chip: ESP32-S3R8 |
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Processor |
Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240MHz |
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System memory |
512KB SRAM、8M PSRAM |
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Storage |
16M Flash |
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Screen |
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Size |
2.1 inch |
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Screen Type |
IPS |
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Touch Type |
Capacitive Touch |
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Resolution |
480*480 |
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Wireless Communication |
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Bluetooth |
Bluetooth Low Energy and Bluetooth 5.0 |
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WiFi |
Support 802.11a/b/g/n，2.4GH |
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Hardware |
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UART Interface |
1x UART1, 1x UART0; ZX-MX 1.25-4P |
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I2C Interface |
ZX-MX 1.25-4P |
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FPC connector |
12P, Power supply burning port |
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Button |
RESET button, BOOT button, confirmation button (knob press switch) |
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LED Light |
Power indicator, LED ambient light |
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Other |
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Power Input |
5V/1A |
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Operating temperature |
-20~65℃ |
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Storage temperature |
-40~80℃ |
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Operation Power |
Module: DC5V Main Chip: 3.3V |
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Size |
79*79*30mm |
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Shell |
Aluminum alloy + plastic + acrylic |
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Net Weight |
80g |
Why Choose Us?
As an industry-leading equipment manufacturer for 11 years, we rely on our independently developed core technology and the production strength of our factories to ensure that every product has precise quality control from design to manufacturing, and is both reliable and innovative. We provide online customer service support to answer your questions at any time, making the whole process worry-free. At the same time, we provide customized solutions to accurately meet your personalized needs. Choosing Elecrow means choosing safety, efficiency and professionalism.
CrowPanel 2.1inch-HMI ESP32 Rotary Display