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Programming the Deek Robot

The Deek robot is similar to the Arduino pro mini with a ATmega 328. it has no USB interface. i used the Arduino UNO to program the Deek robot, without removing the micro controller ATmega 328 from the UNO board. 1. Connect...

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Tabulating the obtained values

        The frequency and the sine wave was set by the function generator. The input, output wave forms were observed from the CRO. The conditions taken were  a 50KΩ , 1KΩ and a current source. The input was fed to the 2.1...

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NPN Transistor as an Amplifier :

We wanted to use the transistor as an amplifier. The input voltage at the base was 3v. Two resistors, one at the emiiter(R1) and the other at the collector(aR1) were connected. 9v supply was given at R1. Constraints : We wanted head...

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PNP Transistor as a Current Source

We wanted to use a transistor as a current source. Two resistors, one at the emiiter(R1) and the other at the collector(R2) were connected. A voltage divider circuit with a supply of 9v was connected at the base that could supply certain...

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Amplifier – Simulation and Results

First started with constructing constant current source using PNP transistor with 9V supply voltage. CONSTANT CURRENT SOURCE:             voltage reading:    3.32V                                ...

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SpeeDe V_03

SpeeDe V_03: The aim of the third version of the SpeeDe is to improve the sensitivity to capture the speed of even smaller object. In this regard, I have done some modification in the program ( using the concept of interrupts in...

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Sampling Theorem

SAMPLING:   A continuous time signal can be represented in its samples and can be recovered back when sampling frequency fs is greater than or equal to the twice the highest frequency (fm) component of message signal. i. e  fs ≥ 2fm. Consider a...

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Demonstration of Division

Many  teachers struggle with teaching division to children and I have been thinking about this recently. I think there are a number of factors contributing to this. Firstly,  there is a huge range of level of understanding of the concept of division...

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At Isai Ambalam

For the first few weeks I decided to teach and learn with the 5th graders at Isai Ambalam middle school, at class we worked out many logic puzzles. The class was at the stage of working out multiplication and division. Speed,distance,time and...

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Scratch stories with Udavi 8th graders

Scratch stories with Udavi 8th graders The 8th graders at Udavi had made stories on the theme ‘ if i had wings ‘ , they were wanting to depict their stories with scratch. The time offered was four English class hours on...

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