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lcd interface with 8051 microcontroller
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Liquid crystal display (LCD) is a very common electronic display module and has a wide range of applications (such as calculator, notebook, mobile phone, etc.), 16 × 2 character LCD is a very basic module, commonly used electronic equipment and projects. It can display 2 lines of 16 characters. Each character is displayed using a 5 × 7 or 5 × 10 pixel matrix.
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various C programs
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In computing, C (/ Si ː /, as shown by the letter C) is a general programming language, which was first used by Dennis Ritchie in at & T Bell laboratory from 1969 to 1973. ] 5 [6] like most imperative languages in ALGOL tradition, C has structured programming facilities and allows variable lexical scope and recursion, while static type system can prevent many unexpected actions. It is designed to provide a mapping efficient description of a typical constructor, and thus found to be used in persistent applications. It has previously been coded in assembly language, and the most striking is the system software (such as UNIX computer operating system). ] 7C is one of the most widely used programming languages all the time, [8] [9], C compiler is available for the vast number of available computer architectures and operating systems. Many later languages have been developed from C, D, derusting, Java, JavaScript, Lingbo, LPC and C #, including C shells borrowed directly or indirectly from C, Perl, PHP, python skin, Verilog (hardware description language), [4] and UNIX. These languages have attracted a large number of theircontrol structures and other basic functions from C. Most of them (and python are the most eye-catching exceptions) are also very tactically similar to C in general. They tend to find C with recognizable expression and sentence syntax, combining basic type system, data model and fundamentally different semantics. C + + is the current nearly C, although the target C is the superset of the strict superset of C. [11]
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remote controlled RF Robot
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<span style="font-size:12.0pt;line-height:150%;font-family:"">A pulse width modulator (PWM) is adevice that may be used as an efficient DC motor speed controller or lightdimmer. This project is a versatile device that can control DC devices whichdraw up to a few amps of current. The circuit may be used in either 12 or 24Volt systems with only a few minor wiring changes. This device has been used tocontrol the speed of the DC motor and to control brightness of an automotivetail lamp. A PWM circuit works by making a square wave with a variableon-to-off ratio, the average on time may be varied from 0 to 100 percent. Inthis manner, a variable amount of power is transferred to the load. The mainadvantage of a PWM circuit over a resistive power controller is the efficiency,at a 50% level, the PWM will use about 50% of full power, almost all of whichis transferred to the load, a resistive controller at 50% load power wouldconsume about 71% o
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