glossary:glossary_i
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glossary:glossary_i [2019/01/18 12:58] – [Interlocking] Bob Vetterlein | glossary:glossary_i [2022/01/26 09:24] – [Incandescent lamps] WortingUK | ||
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===== ICs ===== | ===== ICs ===== | ||
+ | An integrated circuit (IC) is an electronic component which typically packages a collection of transistors, | ||
- | Integrated Circuits are usually called ICs or chips. They are complex circuits which have been etched onto tiny chips of semiconductor (silicon). The chip is packaged in a plastic holder with pins spaced on a 0.1" | ||
- | {{: | ||
- | [[http:// | ||
+ | ===== ICSP (In Circuit Serial Programming) ===== | ||
- | ===== ICSP ===== | + | ICSP is a means whereby |
- | In Circuit Serial Programming.\\ | + | There are no standard physical designs/ |
- | A means whereby | + | Generally MERG modules, with PIC microprocessors, are provided with a 6 way (1 pin omitted) ICSP connector |
+ | [[: | ||
+ | Arduino modules use a USB connection.\\ | ||
+ | AVR ATMEGA chips use a 6 pin connector based on SPI bus. (Optional on Arduino AVR modules)\\ | ||
+ | Atmel SAMD chips have a OneWire ICSP (signal/ | ||
+ | ===== Incandescent lamps ===== | ||
- | ===== Incandescent lamps ===== | + | Incandescent lamps emit light when an electric current passes through a thin wire filament, which becomes very hot and glow brightly. Filament lamps may have a shorter lifetime than most electronic components because the filament could melt at a weak point. Incandescent lamps, such as the tiny " |
+ | \\ {{: | ||
+ | |||
+ | {{: | ||
- | Lamps emit light when an electric current passes through them. All of the lamps shown on this page have a thin wire filament which becomes very hot and glows brightly when a current passes through it. The filament is made from a metal with a high melting point such as tungsten and it is usually wound into a small coil. \\ | ||
- | Filament lamps have a shorter lifetime than most electronic components because eventually the filament ' | ||
- | \\ {{: | ||
\\ [[http:// | \\ [[http:// | ||
+ | ===== Include Guard ===== | ||
+ | |||
+ | A method of preventing a C or C++ header file, from being included more than once by the main file. | ||
+ | |||
+ | ''# | ||
+ | |||
+ | #define _FILENAME_H | ||
+ | |||
+ | // .... contents of the header file | ||
+ | |||
+ | #endif /* _FILENAME_H */'' | ||
+ | If the compiler supports it then '' | ||
===== Inductor ===== | ===== Inductor ===== | ||
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- | ===== Infra red emitter ===== | + | ===== Infrared |
- | + | These are light emitting diodes (LEDs) which emit light outside of the visible light spectrum. | |
- | These IR emitters are high intensity Gallium Arsenide infrared emitting diodes | + | IR emitters are generally |
\\ {{: | \\ {{: | ||
- | ===== Infra red receiver/ | + | ===== Infrared |
- | Two types of IR receivers are used, a phototransistor or a photodiode | + | There are two common |
\\ {{: | \\ {{: | ||
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- | Name for means of linking the operation of points and signals such that signals can only show a proceed aspect when points are correctly set, and that points cannot be moved unless the signals over them are showing stop aspects. Interlocking can be mechanical, electrical using relays or carried out by computers. | + | Name for a means of linking the operation of points and signals such that signals can only show a proceed aspect when points are correctly set, and that points cannot be moved unless the signals over them are showing stop aspects. Interlocking can be mechanical, electrical using relays or carried out by computers. |
=====ISR===== | =====ISR===== | ||
- | Interrupt Service Routine. A subroutine | + | |
+ | An Interrupt Service Routine |
glossary/glossary_i.txt · Last modified: 2023/07/25 15:55 by JohnFletcher