Projector card in LaserHelper
Open the card: Settings tab → Projector list → + (new) or ✎ (edit).
Initial fill-in during installation: Installation and preliminary setup. Below is a field-by-field reference.
Projector list

Element | Purpose |
Projector column | Device name |
Length / Width | Table size, cm |
For structures | Structures mode flag |
Barcode scanner | Scanner COM port for this projector |
+ | Create a new projector |
✎ | Open the card |
✗ | Delete the projector from the list |
⚙ | Low-level UART / Wi‑Fi setup. See Wi‑Fi setup |
Ok | Apply selection and close |
Edit projector

Field numbers on the screenshot may differ from the current program. Use the field labels. In the current card the fields are grouped into blocks.
Projector settings
Field | Purpose |
1. Projector name | How the device appears in Current projector |
2. Table length along X | Table width, cm |
3. Table length along Y | Table length, cm |
4. Used for structures | Projector for structures only, not regular ceilings |
5. Connection method | USB / Radio module / Wi‑Fi |
6. Projector IP / COM | IP for Wi‑Fi, radio COM, or USB COM |
7. Projector SN | Serial number |
8–9. Sleep mode | Turn the beam off after pause or idle |
10. Server IP address | IP of the controlling PC (often |
11. PC name | Computer name on the network |
12. Temperature compensation | Not recommended since 2025 |
13. Enable mirror correction | Removes distortion caused by mirror geometry |
The scanner COM port must not match the projector COM port. If the log shows «used by the projector», assign different ports.
Related: Texture control, Sending from EasyCeiling.