NHD-7.0-HDMI-N-RSXM -RTV touchscreen calibration

roman

• May 16, 2018 08:07

Hi !

I've just bought a NHD-7.0-HDMI-N-RSXM -RTV display. Looks good, brighness is really high !

But I have a problem with touchscreen. It says it does not need calibration as it is pre-calibrated. Looks like precalibration is lost or wrong. I cannot reach top of screen on left top corner, cannot reach right side on top right border and so on... similar on other corners. Cursor is

Is there a way to recalibrate 

Thanks!!

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  Paul_B

  • May 16, 2018 09:07

  Hi Roman,
  
  The AR1100 (Resistive Touch Screen Controller IC) shows up like a USB mouse, it works on all operating systems as the computer doesn't even know its a touch screen, it just thinks its a mouse. You can adjust the AR1100 to consider itself a Touch Digitizer, supported by many but possibly not all computers.
  
  You can also re-calibrate the touch screen. We do calibrate it with the 800x480 7" screens but we recommend re-calibrating it if you feel like its not precise enough for your tastes.
  
  If you have a Raspberry Pi available you can re-calibrate the touch IC via USB using the following program:
  
  https://github.com/tom-2015/rpi-AR1100
  
  or
  
  If you have a Windows computer you can re-calibrate the touch IC via USB using the following program:
  
  http://www.microchip.com/wwwproducts/en/AR1100#documentation

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  roman

  • May 16, 2018 09:40

  Hi Paul.
  
  Screen is recalibrated and working fine!
  
  Thanks a lot!
  
  Regards.
  Roman

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  Paul_B

  • May 17, 2018 09:40

  No problem :)

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