Laser Projection Virtual Keyboard

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Shenzhen
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T/T,
Min Order Qty:
2 Pieces pc
Supply Capability:
10000 Piece/Pieces per Month pc/month

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Specifications

Projected Laser Keyboard for Ipad/Iphone and Tablet PC

Physical Dimension:36mmx18mmx74mm
 Weight:Approx. 40g
Keyboard light source:Red laser diode
Keyboard language:English
Keyboard layout:20.8mm sized QWERTY layout
Projection size:Approx. 241mm*101mm
Projected Keyboard location:Approx. 97.9mm from keyboard device
Keystroke Sound:Built in buzzer(Mute on/off the sound)
Visibility:Good contrast up to 1800 lux ambient illumination
Detection rate:Over 400 characters per minute
Detection algorithm:Multiple key stroke support
Effective key stroke: Approx. 2mm
Required projection surface: Non-reflective, opaque flat surface 
Power source: The USB bus power
Lithium-ion battery power
The DC input power
Battery capacity: 700mAH(Max) 3.7V Replaceable soft-pack type
Charger:Rating 800mA @ 5V
Interface:USB 1.1 and 2.0 for PC
Bluetooth(v2.0 class 2,class 3 )HID  for Mobile devices
 Switch mode:Switch the active/Standby mode manually
 Power consumption:max. 2.4W 4.2V
 Use temperature:Approx. 0~50°C
Storage temperature:Approx. -20~50°C
Software compatibility:  All USB HID Compliant OS, All Bluetooth HID Compliant Mobile Device, Windows XP/WINDOWS 7 or Higher, LINUX, Ipad ,Iphone,Android 2.2 or Higher

 

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Q:What is the use of laser etching technology in laser engraving on the burning out of the black cap groove
 but also because it is the burning moment of writing, so do not need to be any other measures very clear and firm handwriting
Q:How to view the failure of the key part of the conductive plastic
If the area to save a lot of dirt, then use the same alcohol scrub. If the conductive plastic is damaged
Q:Shell structure of the keyboard
At present, the keyboard of the desktop PC computer adopts a movable keyboard
Q:Compared with laser etching and screen printing
So, in addition to those who cannot afford a laser etching machine small factory had no choice
Q:Remove circuit board and circuit board
There is no fixed screw on the 3 layer circuit film, which can be directly removed, which is fixed by the round hole on the film.
Q:Keyboard button failure repair
 keyboard plug damage, the line is a problem, the motherboard is damaged, 
Q:Basic operation of fault maintenance
 because I have used, but it is best to use a high concentration of alcohol cotton) gently scrubbed two times on the circuit board.
Q:So if it is USB keyboard can not identify how it is going on?
 look at the computer USB interface is also available, we can insert USB keyboard to other computer to try to test whether the compute
Q:Remove all about of the keys
There is a separate rubber pad on each key, take all of them first. 
Q:Keyboard keyboard can not identify the problem
 It is best to use a camera to shoot down the keyboard layout or draw a sketch. After the cap is removed,

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