ELECROW
ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch Display
Bottom line: The ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch: Rotary knob turns both ways and presses, plus a capacitive touch screen; main trade-off: 1.28-inch screen is small for dense menus or text-heavy UIs.
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Pros & Cons
Pros
- ✓ Rotary knob turns both ways and presses, plus a capacitive touch screen
- ✓ ESP32-S3 dual-core 32-bit chip up to 240MHz handles UI rendering in real time
- ✓ 2.4GHz WiFi and BLE built in for smart-home and IoT control links
- ✓ UART, I2C and FPC interfaces for adding sensors and other peripherals
- ✓ Round 240x240 IPS panel with a built-in ambient light effect
Cons
- ✗ 1.28-inch screen is small for dense menus or text-heavy UIs
- ✗ 240x240 resolution limits fine detail in graphics and fonts
- ✗ WiFi is 2.4GHz only, with no 5GHz band support
- ✗ Flash and PSRAM sizes are not stated in the listing
SpecPicks Verdict
SpecPicks scored ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch… using a rating × review-volume × price-fit model applied to published specs and reviews across the single board computers category. ELECROW's single board computers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
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 |
| Unit Count | 1 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 |
| Number of Items | 1 |
| Processor Count | 2 |
| Total Usb Ports | 1 |
| Compatible Devices | Arduino IDE, LVGL library |
| Included Components | 1x 1.28 inch ESP32 Rotary Display, 1x 4pin Dupont Cable, 1x 50 cm MX1.25 to USB Cable |
| Warranty Description | 1 Year Manufacturer Warranty |
| Connectivity Technology | Bluetooth, Wi-Fi |
Ready to buy?
ELECROW 1.28" ESP32 Rotary Display 240x240 HMI IPS Round Knob Touch Display is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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