How To Setup Interactive Wall Projection

A step-by-step technical guide to installing the Camera, Laser Module, and calibrating the KLEADER interactive software.

Working principle of the interactive Touch System

The working principle of this product involves installing an infrared laser module above a projector or display device. The laser module creates an invisible light film layer 1-2 mm thick and 1mm wide on the projection surface. When touching this film with fingers or other opaque objects, a reflected light spot is captured by the camera module mounted on the projector. Through our proprietary touch control software's analysis and algorithm processing, accurate touch coordinates are obtained to achieve the touch functionality.

Interactive touch wall kit Overview

1. Supports  finger  touch: You  can  touch  the  projected  screen  directly  with  your finger without any pen.

2. Supports multi-touch: stretch and retract images with both hands; two points to achieve mouse wheel function; ten people write at the same time without interference.

3. The  minimum  installation  distance  is   15cm:  the   "80-inch"  projection   screen requires only 15cm between the camera and the board surface.

4. High integration, portable, easy to install: The host is fixed with double-sided tape on the wall or board. There is no need to modify the board or wall.

5. Transforming a normal whiteboard or wall into a finger touch screen: This product can transform any whiteboard or wall into a touch screen. You can directly fix the product above the area you want to transform.

6. Any opaque object can be used as a  stylus: The  finger touch feature employs camera-based positioning technology. Within the interactive area, any  strip-shaped opaque object can function as a stylus. If you accidentally lose your pointer pen or find it too cold to use on the whiteboard, simply roll up a sheet of paper and continue your lesson.

7. Conversion of standard LCD screens to touch screens: Compatible with 40-120 inch displays. The process involves installing a glass cover over the screen surface and securing the device to it, transforming it into a touch screen. This method is more cost-effective than infrared frame solutions, requires no custom modifications, and maintains consistent pricing regardless of screen size.

Main Hardware of the Interactive touch wall kits

order number	name	quantity
1	Camera Module	1
2	Laser Module	1
3	Type B mouth camera data cable (12M)	1
4	Type-c laser power cable (6M)	1
5	Camera Mount	1
6	Laser power adapter	1
7	Laser 3M adhesive (rectangular)	1
8	Camera bracket 3M adhesive	1
9	Wall transparent adhesive tape	1
10	Laser screw	1
11	nail-free glue	1
12	Adjusting screwdriver	1

 Tools needed: Laser Module (5V/2A), Camera Sensor, USB Cables.

How to make an interactive touch wall

1. Hardware Connection

Kit Components: Camera, extension cable (12m), camera mount, laser module, power cable/adapter (5V/2A), mounting screws.

Connections: Laser Power: Type-C to USB adapter.

Camera: USB-A to USB-B into computer.

Software: Install from package, open software, select Camera Mode.

Hardware Mounting:

Mount camera & laser firmly above center of projection area.

Ensure full projection area is visible in camera view (at least 50% of screen).

Adjust camera rotation in Settings if image is upside down.

2. Laser Calibration

Switch to Laser Mode.

Open laser cover, use screws to adjust:

Left knob: Horizontal angle.

Middle knob: Vertical angle.

Turn both screws counterclockwise until red line appears.

Adjust until laser line just disappears below projection area. A red line should appear on floor.

Touch bottom edge of image. Ideally, the red line is ~3 mm from wall. Fine-tune if needed.

3. Software Auto-Calibration

Click Auto Calibration. Process takes 3-5 seconds.

Do not block camera or projection during calibration.

System will switch to touch mode when complete.

Save Interactive touch software data

Software auto-launches on reboot. Test touch—white dot in laser view confirms accurate detection.