What are the alternatives to the ELECROW ESP32 Rotary Display 480x480-2.1 Inch HMI IPS Round Knob Touch Display…?

ELECROW ESP32 Rotary Display 480x480-2.1 Inch HMI IPS Round Knob Touch Display… competes with other Single Board Computers products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Single Board Computers category for alternatives.

ELECROW

ESP32 Rotary Display 480x480-2.1 Inch HMI IPS Round Knob Touch Display Development Board, 2.4G WiFi and BLE Capacitive Touch Screen Compatible with Arduino IDE and The LVGL Library, Black

Name: ELECROW ESP32 Rotary Display 480x480-2.1 Inch HMI IPS Round Knob Touch Display Development Board, 2.4G WiFi and BLE Capacitive Touch Screen
Brand: ELECROW
SKU: B0G3TZGRC4
Price: 52.99 USD
Availability: InStock
Rating: 4.0 (39 reviews)

By SpecPicks Editorial · Verified 2026-06-06

$52.99 ★★★★☆4.0(39 reviews)

Buy on Amazon — $52.99 Compare to similar single board computers

*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.

Bottom line: The ESP32 Rotary Display 480x480-2.1 Inch HMI IPS Round Knob Touch Display Development Board, 2.4G WiFi and BLE Capacitive Touch Screen Compatible with Arduino IDE and The LVGL Library, Black is a mid-pack option worth checking against alternatives in the single board computers category, priced around $52.99, rated 4.0★ across 39 verified Amazon reviews. Worth shortlisting, but check close alternatives before deciding.

SpecPicks Verdict

SpecPicks classifies ELECROW ESP32 Rotary Display 480x480-2.1 Inch HMI IPS Round Knob… as a mid-pack option worth checking against alternatives in the single board computers category, based on 39 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. ELECROW's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for single board computers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Solid 4.0★ customer rating
✓ Backed by ELECROW's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Limited review volume so far — fewer data points on long-term reliability
✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Rotary Knob & Capacitive Touch Interaction: This 2.1 inch rotary screen supports both capacitive touch and rotary knob input. The knob supports clockwise rotation, counterclockwise rotation, and full press actions, allowing intuitive control for volume, brightness, menus, and parameters
High-Performance ESP32-S3 Dual-Core Controller: Powered by a 32-bit dual-core ESP32-S3 chip with up to 240MHz clock speed, this ESP32 display delivers reliable performance for complex UI interfaces, data processing, and real-time interaction
Wireless Connectivity for IoT Applications: The knob touch display supports 2.4G WiFi and BLE low-power Bluetooth, enabling reliable wireless communication, remote control, and data exchange for IoT devices, smart home systems, and industrial control projects
Multiple Expansion Interfaces for Development: The ESP32 rotary display is equipped with a 5V charging interface for power supply and firmware programming, and provides UART, I2C, and FPC expansion interfaces to meet diverse embedded development needs
Ideal for Makers, Education & Product Development: Well-suited for DIY creators, open-source hardware enthusiasts, educators, and IoT manufacturers looking to accelerate prototyping, UI development, and customized control panel design

Full Specifications

Brand	ELECROW
Weight	2.4g
CPU Speed	240 MHz
Model Name	DHE03921D
Unit Count	1.0 Count
Connectivity	Bluetooth, WiFi, 2.4GHz
Model Number	DHE03921D
Built-In Media	1x 2.1 inch ESP32 Rotary Display, 1x 4pin Dupont Cable, 1x 50 cm MX1.25 to USB Cable
Connection Type	Wireless
Mfr Part Number	DHE03921D
Processor Brand	Espressif
Processor Count	2
Processor Speed	240 MHz
Total Usb Ports	1

Ready to buy?

ELECROW ESP32 Rotary Display 480x480-2.1 Inch HMI IPS Round Knob Touch Display Development Board, 2.4G WiFi and BLE Capacitive Touch Screen Compatible with Arduino IDE and The LVGL Library, Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.