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How Does The Xbox Game Controller Principle Work?
Aug 11, 2017

How does the Xbox Game Controller principle work?
Many of the electrical appliances are used Xbox Game Controller, then the Xbox Game Controller principle of what is the principle? First, we look at what is infrared.
People's eyes can see the visible light according to the wavelength from long to short arrangement, followed by red, orange, yellow, green, blue, blue, purple. Where the red light wave 9 _ 'q & J # s, E7 H
Long range of 0.62 ~ 0.76μm; purple wavelength range of 0.38 ~ 0.46μm. Than the purple wavelength is also short light called ultraviolet light, longer than the red wavelength of light called infrared.
Xbox Game Controller is the use of wavelengths between 0.76 ~ 1.5μm near the infrared to send control signals.
Xbox Game Controller is characterized by no impact on the surrounding environment, do not interfere with other electrical equipment. Because it can not penetrate the wall, so the different rooms of household appliances can use a common remote control without mutual interference; circuit debugging is simple, as long as the given circuit connection is correct, generally without any debugging can be put into work; Easy, can be multi-channel remote control.
As the manufacturers produced a large number of Xbox Game Controller ASIC, when needed according to figure can be. Therefore, the Xbox Game Controller in the home appliances, indoor distance (less than 10 meters) remote control has been widely used. ) E "E. W / y 'X R,]
Xbox Game Controller principle of the multi-channel control of the Xbox Game Controller system multi-channel control of the infrared launch part of the general there are many buttons, representing different control functions. When the transmitter presses a key, it has a different output state at the receiving end. + E (} $ a% U; o. A
Xbox Game Controller principle in the receiver output state can be divided into pulse, level, self-locking, interlock, data five forms. "Pulse" output is when the press button, the receiver corresponding to the output output of a "effective pulse", the width is generally about 100ms. "Level" output refers to the launch side of the button, the Xbox Game Controller receiver output corresponding to the output "active level", the transmitter release key, the receiver "effective level" disappears. The "effective pulse" and "active level" here may be high or low, depending on the static status of the corresponding output pin, such as when the static is low, then the "high" is valid; , Then "low" is valid. In most cases, "high" is valid. "Self-locking" output refers to the transmitter once each press a key, the receiver corresponding to the output side to change the state, that is, the original high to low, the original low to high. This output is suitable for power switch, mute control and so on. Sometimes this output is also called "reverse". "Interlock" output means that multiple outputs are cleared each other and only one output is valid at the same time. TV tuner is the case, such as dimming, speed, sound input options. J8 Q-B / @ $ ~, | n # G6 G; Y9 C, B1 d * A
"Data" output refers to the number of transmission keys on the number, the use of several outputs of the receiver to form a binary number, to represent the different key input. + N4 a, h # `* h. K, I3 D & X" q 'o
In general, the Xbox Game Controller receiver in addition to several data output, there should be a "data valid" output, so that the late level to take data. This type of output is typically used for interfacing with a microcontroller or microcomputer. In addition to the above output form, there are "latched" and "temporary" two forms. The so-called "latch" output refers to the transmitter every time the signal, the Xbox Game Controller receiver output corresponding to the "storage" until a new signal received; "temporary" output and the introduction of the "level "The output is similar.