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Larry Pellach and Brian Silverstein

Introduction Imagine being able to monitor the status of a given room or area from anywhere in the world, at anytime.  In today�s booming technological atmosphere, this dream doesn�t sound so far off.  However, imagine being able to do this cheaply, while not sacrificing efficiency and functionality.  Our microcontroller web-monitored thermostat does exactly this.  It offers flexibility and functionality at ...

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A m -Controller Based Thermostat Using Atmel AT90S8535 microcontroller

Introduction The goal of our final project was to design a thermostat using an Atmel AT90S8535 microcontroller. The thermostat was to compute the current temperature once per second and then send an on/off signal to a heating device which would then regulate the temperature to a desired target temperature. In addition, the thermostat was required to keep a time of day clock, as well as record the maximum an ...

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Temperature and Pressure Control using the AT90S8535

Overview: This project involves the implementation of control and monitor for dual processes. The variables monitored are pressure and temperature. The input control is a 16 button keypad and the output is monitored in a 16 character LCD The device can be widely deployed as a cheap solution to room and automobile climate control automation. Assembly code for device   Functionality: 1. Display Pressure or Te ...

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DigiThermo 0-100.0 °C using AT89C4051

 Introduction The DigiThermo is a device designed for measuring time and temperature used in chemistry laboratory. The circuit of Digithermo employs a 89C4051, 20-pin CMOS Microcontroller with built-in 4kB code memory. Temperature was measured by LM35D, National Semiconductor Temperature sensor producing 10mV/°C. The CA3162, 3-digit DVM converts dc output provided by LM35D and sends BCD output to port1 (P1. ...

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AVR Thermometer using AT90S2313 microcontroller

Introduction I bought the LED module from BanMor' last week, just 30Baht. The moduleprovide a prewired multiplex of 4-digit common anode LED, that's great.See the soldering pad of these signal in the 1st picture below. I thought,my friend gave me the AT90S2313 chip, and with a simple homemade ISP cableand a free software AVR ISP downloader, so we don't need the device programmer.Also I got the DS1820 from m ...

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Data Acquisition System using ATmega8

Introduction We can use a PC for connecting the homemade data acquisition hardware and produce the GUI for user friendly graphical presentation easily. One of the project that uses Visual Basic is the Data Acquisition & Logging System using AT89C51 made by Abbas Raza. In this project we use a PC for GUI display and the homemade data converter board using the AVR microcontroller. The circuit is built wit ...

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Temperature Sensor Thermometer using AT89C51 and DS1621 microcontroller

DS1621 temperature sensor circuit digital thermometer to tell if using. Operation of the circuit is simple, as are as follows: temperature sensor from the numeric value being sent to the microcontroller and the microcontroller using the I2C serial communication protocol, this value will more basıyor.Biraz If the LCD tomicrocontroller interprets the sensor in the 16-bit LCD to the data transfers. Dallas DS16 ...

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