21.5″ digital class board
A digital class board is a 21.5″ wall-mounted screen outside each classroom that shows class information, timetables and school notices and records attendance. Ours combines an HD face-recognition camera with card check-in and a built-in calling module so students can phone parents, on an RK3288 board that also plays campus videos and images.

Specifications
| Panel | 21.5″ TFT-LED, 1920 × 1080 |
|---|---|
| Processor | RK3288 quad-core Cortex-A17, 1.8 GHz |
| Memory / storage | 2 GB · 8 GB flash · SD up to 64 GB |
| Attendance | HD camera face recognition + card check-in |
| Calling | Built-in phone module |
| Network | Ethernet, Wi-Fi, 3G/4G (optional), Bluetooth |
| Clock | RTC battery, scheduled power on/off |
| Power | DC 12 V 2 A adapter |
Specifications are from the factory catalog and may change with configuration. Ask for the current spec sheet.
Key features
- Face recognition and card attendance
- Built-in calling module for parents
- Class, timetable and course info
- Plays campus videos and notices
Typical installations
- Classroom doors in primary and secondary schools
- Kindergarten classrooms
- Training-center rooms
Commonly customized
- Integration with school-management software
- Card type and camera
- Housing color and cartoon artwork
- Screen size
Frequently asked questions
What can the school manage on the class board?
Basic school information, class, classroom, timetable and course definitions, attendance at the gate, class or whole-school level, and campus videos and images.
How do students call parents?
The class board has a built-in calling module; students identify themselves and call the stored family numbers.
Quote: 21.5″ digital class board
Send a size, a sketch or a reference model. You get a spec sheet and factory price from an engineer, usually within one working day.
To get an accurate quote, tell us
- Product type and screen size
- Quantity and target market
- What to customize — logo, color, peripherals, software
- Your timeline
- Reply from an engineer within one working day
- Spec sheet and factory price, not a sales script
- Drawings can be protected under NDA



