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ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch Display | 2.4G WiFi and BLE Capacitive Rotary Touch Screen Development Board Compatible with Arduino IDE and LVGL Library
ELECROW

1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch Display | 2.4G WiFi and BLE Capacitive Rotary Touch Screen Development Board Compatible with Arduino IDE and LVGL Library

By SpecPicks Editorial · Verified 2026-08-21

$49.99
Buy on Amazon — $49.99 Compare to similar retro motherboards

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch Display | 2.4G WiFi and BLE Capacitive Rotary Touch Screen Development Board Compatible with Arduino IDE and LVGL Library is a niche pick — read recent reviews before buying in the retro motherboards category, priced around $49.99. Read recent reviews carefully before committing.

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SpecPicks Verdict

SpecPicks classifies ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch… as a niche pick — read recent reviews before buying in the retro motherboards category, based on our editorial and benchmark analysis 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 retro motherboards 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

  • ✓ Backed by ELECROW's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ 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 rotary screen supports capacitive touch operation and rotary input. The knob supports clockwise rotation, counterclockwise rotation, and full press actions, ideal for adjusting volume, brightness, menus, and parameters in smart control applications
  • High-Performance ESP32-S3 Dual-Core Chip: Powered by a 32-bit dual-core ESP32-S3 processor with up to 240MHz clock speed, this ESP32 display delivers strong performance for complex UI rendering, 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
  • Rich 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 various embedded development needs
  • Low Power Design with Ambient Light Effect: The round display is designed for low power consumption to extend battery life in portable devices. The built-in ambient light design enhances visual appeal and improves overall user experience
  • 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

BrandELECROW
Weight2.4g
Unit Count1 Count
ConnectivityBluetooth, WiFi, 2.4GHz
Model NumberDHE38128D
Built-In Media1x 1.28 inch ESP32 Rotary Display, 1x 4pin Dupont Cable, 1x 50 cm MX1.25 to USB Cable
Connection TypeWireless
Mfr Part NumberDHE38128D
Number of Items1
Processor Count2
Total Usb Ports1
Compatible DevicesArduino IDE, LVGL library
Included Components1x 1.28 inch ESP32 Rotary Display, 1x 4pin Dupont Cable, 1x 50 cm MX1.25 to USB Cable
Warranty Description1 Year Manufacturer Warranty

Ready to buy?

ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch Display | 2.4G WiFi and BLE Capacitive Rotary Touch Screen Development Board Compatible with Arduino IDE and LVGL Library 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 2026-08-21. Price and availability subject to change.

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ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch Display | 2.4G WiFi and BLE Capacitive Rotary Touch Screen Development Board Compatible with Arduino IDE and LVGL Library
$49.99
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