Control Free Microcontroller and Interface Programming 2010-06-27 08:36:00

Telephone Operated Remote Control Using PIC16F84A This design controls up to 8 devices using a PIC microcontroller (PIC16F84A) connected to the phone line. The unique feature here is that unlike other telephone line based remote control, this device does not need the call to be answered at the remote end so the call will not be charged. This...

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Control Decimal Vs Binary Numeration

Counting from zero to twenty using four different kinds of numeration systems: hash marks, Roman numerals, decimal, and binary:System:    Hash Marks               Roman     Decimal     Binary-------    ----------              ...

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Control Light Controller Using PIC 16F873

This circuit is a light controller with PIC 16F873. On this circuit, the control voltage is controlled by the variable resistor, and then by ADC on PIC16F873 converted to digital signals. To set the duration of the PWM pulse. This is the figure of the circuit;This circuit is used to control the range of 100W.  Because the operating voltage...

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Schematic Signal control on ADC0804

In this section, we will discuss the practicle issues og ADC0804 and Signal control on ADC0804. Then we will move to the interfacing of ADC0804 with microcontroller.Signal control on ADC08041. Make CS = 0 and send a L-to-H pulse to pin WR to start the conversion.2. Keep monitoring the INTR pin. If INTR is low, the conversion is finished and...

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Schematic Analog-to-digital converter (ADC ) Interfacing with microcontroller

This post is the continuetion of last post in which we discussed the Analog interfacing with microcontroller. We learnt that the transducers required Analog to digital converters in middle to have interfacing with microcontrollers. This post is about the ADC interfacing and working.Thus we can say that we need to have some means to convert...

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Schematic Microcontroller Applications and Analogue Interfacing for input and output

Microcontroller Applications and Analogue Interfacing for input and outputIn this post we will learn how to Interface 8051 with the Input and Output Devices like Transducer/Sensors ,Analogue-to-Digital Conversion (ADC) and Digital-to-Analogue Conversion (DAC).These three types of Interfaces will be discussed in this post and some coming posts. 1. The interface of Transducer or sensors with Microcontroller 8051:-The 8051 microcontroller...

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Schematic Programming Aspects of Moving message display project using 8051

Programming Aspects of Moving message display project using 8051:-In this post we will discuss the software or program or code written for moving message display project using microcontroller 8051.In this section, we will try to answer the issues related to the timings of the signals generated. The timing of the signal relates to the order in which an instruction or command is sent to the LCD along with the appropriate signal...

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Schematic Hardware Aspects of Moving Message Display Project

Hardware Aspects of Moving Message Display Project:-The moving message display is fabricated using these major components:-1. Micro controller AT89s512. LCD3. RS-2324. Computerthe moving message will be display on the LCD which will be controlled through microcontroller and the message will be sent by computer using RS232. The circuit diagram...

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Schematic Introduction to 89C51 Microcontroller

Introduction to 89C51 Microcontroller:The ATMEL 89C51 is used here; some of the features with respect to our project are discussed here.3.1 Memory OrganizationThe ATMEL 89C51 implements a separate memory space for code and data, both code and data may be internal; however, both expand using external components to a maximum of 64k code memory...

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