Sysolution E22 Rear-Window LED Sign Controller
The E22 manages full-color LED content for vehicle rear-window screens. Programs can be edited through its built-in web server from a computer, phone or tablet. Remote cloud control and secondary development support fleet-oriented content applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| LED load | 256 × 32 pixels |
| Module interfaces | 2 + 1 HUB75E; load table specifies two HUB75 interfaces |
| Receiving-card cascade | Not supported |
| Platform | Qualcomm MSM8909 |
| CPU / GPU | Quad-core A7, 32-bit, 1.1 GHz / A307, 409.6 MHz |
| Memory / storage | 1 GB LPDDR3 / 8 GB eMMC |
| Operating system | Android 5.1 |
| Wi-Fi | IEEE 802.11b/g/n, 2.4 GHz; AP / Station |
| Communication | 4G, Wi-Fi and USB drive |
| Positioning | GPS / BeiDou / GLONASS |
| Module scan range | Full-color static through 1/32 scan |
| Audio, camera, weather and content readback | Supported |
| Configuration software | EasyBoard |
| Working voltage | 4.5–5.5 V |
| Maximum current / power | 2 A / 10 W |
| Operating temperature | −20°C to +70°C |
| Size | 150 × 82 × 19 mm; 22.5 mm high with cable connected |
Check Vehicle and Module Connections
The source describes separate passenger-status interfaces and a 2 + 1 HUB75E arrangement. Confirm the purpose and pin assignment of each connector before wiring. The additional interface is not stated to increase the 256 × 32 display load.
The published cellular configuration is for China: FDD-LTE B1/3; TDD-LTE B38/39/40/41; TDSCDMA B34/39; WCDMA B1/8; CDMA 1X/EVDO BC0; GSM B3/5/8. Verify the supplied modem for the actual operating region.
Frequently Asked Questions
What type of sign is the E22 designed for?
The E22 is specified for full-color car rear-window LED displays.
Can E22 control a 256 × 32 screen?
256 × 32 is its listed load. The LED module interface and scan settings must also match.
Can extra receiving cards expand an E22 system?
No. Receiving-card cascading is explicitly excluded in the specification.
Can I configure content through a phone?
Local web editing from phones and tablets is listed, alongside Wi-Fi AP and Station modes.
What power range does the E22 require?
The linked specification gives 4.5–5.5 V, with maximum current of 2 A and maximum working power of 10 W.




