smartboards in classrooms
Capacitive touch screen with touch feel is good, large surface hardness, scratch resistance, good appearance, good pervious to light, and many other advantages, has become the first choice for many industry users. Due to the sensitivity of capacitive touch screen is sensitive to surface mulch, users in the touch screen mounted on the surface of PVC panel, acrylic, or tempered glass panel, on the smartboards in classrooms one hand, the structure to ensure the clearance is as small as possible, at the same time the need to adjust the touch screen sensitivity, or touch screen work often can appear abnormal phenomena, such as touch button clicks don't respond, or button and wait for a phenomenon.
Method one: reconfigure the capacitance screen parameters through a configuration file
Capacitive touch screen, save the configuration parameters of serial interface screen new parameter configuration can be written to the sensitivity of capacitive touch screen. For customers, the capacitance touch screen mounted panel panel samples and structure can be mailed to our company. We can according to customer's sample test adjust the parameters of capacitive touch screen, generate a configuration file named "TP_HDxxx". The actual production process, the user put the document in the U disk or in the root directory of the TF card, can update with project file to a serial port in the screen, no additional operation.
SDWb, SDWa and SDWe interactive whiteboards in the classroom series support adjusted using the capacitive touch sensitivity.
Method 2: through the screen and configure the user to set
SDWb, SDWa series serial interface screen interactive flat panel display allows users to set the capacitive touch screen sensitivity function on its own.
As shown in figure 1, in VGUS development tools "panel and configure", check the "enable capacitance screen sensitivity", and set the sensitivity value. The sensitivity value range 0 x00-0 x1f, the larger the value, the higher the sensitivity. A corresponding user can increase the thicker the acrylic or tempered glass panel. The user can be flexible adjustment according to actual situation.
Compile corresponding interactive boards for classrooms engineering, capacitive touch screen sensitivity values will be stored in the project file. When the user download the project files to a serial port, screen with capacitive touch screen sensitivity parameters will be updated to the screen in the serial port.
Although can adjust the capacitive classroom interactive whiteboard touch screen sensitivity by the above method, solve the problem of surface mounted to the cover plate. But for conditional production users, on the surface of the capacitive touch screen is not recommended to add cover plate. Capacitive touch screen outer material used is toughened glass, itself has features of high hardness and good resistance to scratch, pervious to light. If the need for structure design, or structure, waterproof etc. To add cover, and also to have the production conditions, the proposal USES custom capacitive touch screen outer toughened glass, this structure is simple, reliable and good غير مجاز مي باشدt performance.
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