ELECROW
ESP32 Rotary Display 240x240-1.28 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, Silver
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
Bottom line: The ESP32 Rotary Display 240x240-1.28 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, Silver is a mid-pack option worth checking against alternatives in the single board computers category, priced around $42.99, rated 4.0★ across 39 verified Amazon reviews. Worth shortlisting, but check close alternatives before deciding.
SpecPicks Verdict
SpecPicks classifies ELECROW ESP32 Rotary Display 240x240-1.28 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 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
| Brand | ELECROW |
|---|---|
| Weight | 2.4g |
| CPU Speed | 240 MHz |
| Unit Count | 1.0 Count |
| Connectivity | Bluetooth, WiFi, 2.4GHz |
| Model Number | DHE38128D |
| Built-In Media | 1x 1.28 inch ESP32 Rotary Display, 1x 4pin Dupont Cable, 1x 50 cm MX1.25 to USB Cable |
| Connection Type | Wireless |
| Mfr Part Number | DHE38128D |
| Processor Brand | Espressif |
| Processor Count | 2 |
| Processor Speed | 240 MHz |
| Total Usb Ports | 1 |
| CPU Manufacturer | Espressif |
Ready to buy?
ELECROW ESP32 Rotary Display 240x240-1.28 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, Silver 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.
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
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