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laserkbd's Introduction

laserkbd

A Low Cost Laser Projection Keyboard designed by RoboPeak

Full Source Code Release

NOTE: all the source code is licensed under LGPL. No warranty for the sourcecode and the related software.

dependence

Ubuntu

sudo apt-get install libopencv-dev libx11-dev libv4l-dev libcurl4-openssl-dev \
                     libkdtree++-dev libjsoncpp-dev libusb-1.0-0-dev scons

ArchLinux

sudo pacman -Syu
sudo pacman -S opencv libx11 v4l-utils curl jsoncpp libusbx scons

install libkdtree++

git clone git://git.debian.org/git/libkdtree/libkdtree.git
cd libkdtree
./autogen.sh
./configure --prefix=/usr
make
sudo make install

build

cd laser_kbd_neo
scons

vi ./laser_kbd_neo/SConstruct 
feature_pattern_type_2 = 0

debug

gdb ./laser_kbd_neo/laser_kbd 
r

if segfault

bt

set breakpoint, for example:

b ./laser_kbd_neo/src/port/linux/powervideocap_linux.cpp:41

video device whether or not support exposure

v4l2-ctl -w --all | grep exposure

keycode

sudo pacman -S xorg-xev                                                         
xev

hip keyboard too see the keycode

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