README.md Kaleidoscope-KeyLogger The KeyLogger plugin, as the name suggests, implements a key logger for the Kaleidoscope firmware. It logs the row and column of every key press and release, along with the event, and the layer number, in a format that is reasonably easy to parse, to the Serial interface.

Free download photoechoes serial software, photoechoes serial download, Serial Key Generator, Software developer tool., free photoechoes, free serial, photoechoes. 4.1 What is a Serial Port? Intro to Serial. When the serial port receives a number of bytes (may be set to 1, 4, 8, or 14) into its FIFO buffer.

A word of warning Having a key logger is as dangerous as it sounds. Anyone who can read the serial events from the keyboard, will know exactly what keys you press, and when. Unless you know what you are doing, and can secure your keyboard, do not enable this plugin. Using the plugin There is nothing configurable about the plugin, using it is as simple as including the header file, and declaring it used.

Although computers got their name from their ability to calculate, one of the main uses for computers today is in communications. Our modern telephone system is a large collection of computers, communicating with one another by sending pulses of laser light through optical fibers. Click on photo for a larger picture We can do the same thing at home. In this project, we will build a laser transmitter that the computer will control, sending data by flashing the laser on and off. But we will eliminate the optical fibers, and just send the light through the air, in what is called free space laser data transmission. The computer controlled laser data transmitter needs these parts: • A pocket laser pointer We carry this item in our.

• A serial port connector We use a 9 pin RS232 connector. You can take apart an old serial cable, or buy a new connector from an electronics or computer store. We carry this item in our. • An NPN transistor Almost any type will do, such as the 2N4401 or 2N2222A. We carry this item in our.

• A 470 ohm resistor This resistor will have color codes Yellow Purple Brown and Gold. We carry this item in our. • A light emitting diode We use a clear lensed red LED, but most any LED will do. We carry this item in our. • A generic printed circuit board This is not really required, but makes assembly easier.

We use the Radio Shack 276-159B. We carry this item in our. • An alligator test lead This is a piece of wire with alligator clips at each end. We used half of a red one and half of a black one, to make it easy to describe how to connect them, but a single test lead cut in half will do nicely.

It does not harm the laser to connect them wrong -- just switch them around if the laser doesn't light up. We carry this item in our. Lenovo Warranty And License Agreement. • A nine volt battery clip This is a clip on connector for a 9 volt battery. We carry this item in our.

• A spring-type clothes pin • A screw or nail about 2 inches long with a flat head • A small block of wood for a base • A nine volt battery • A bit of tape and glue to hold it all together Modifications to the laser We will not actually modify the laser, so it will be easy to undo the project and still have a working laser pointer. But we will be removing the batteries, taping down the ON switch, and inserting a small screw where the batteries were, to make it easy to connect the laser to the transmitter circuit we will build. Click on photo for a larger picture With the batteries removed, we can look into the back end of the laser and see the small spring that normally connects to the negative terminal of the battery. We can also see the switch that turns the laser on — it is the little black box with the red button.

Click on photo for a larger picture To make it easier to connect the little spring to our circuit, we will wrap some tape around a small screw, and place the screw head against the spring. The tape will be wound around the screw until it makes a snug fit inside the laser, compressing the screw a little bit. Click on photo for a larger picture Next, we use some tape to hold the ON button down. We will be turning the laser on and off with our circuit, so the button will no longer be used, and must remain in the ON position at all times. Click on photo for a larger picture The computer will communicate with our circuit through its serial port. If your computer does not have a serial port, there are inexpensive USB serial ports you can buy that will connect easily to your computer and will work fine for our project.