System diagram:

Indoor unit PCB diagram:

Outdoor unit PCB diagram:

Functional specifications:
| Main Chips | MST706/MST703/T120/T530EA |
| Soft structure | 51MCU |
Support panel size | Above 16-32, rest with ring IC |
| RTC | √ |
| CVBS In | √ |
| UI interface | 256 color fashion UI |
| VIDEO OUT | NTSC/PAL |
| State | Mass product |
Promotion: The above plan is mature, and our company can provide all hardware and software customization services based on the customer's shell structure until mass production of the product.