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Super Cheap Accelerometer with Arduino!

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Measure g-forces on your car with Arduino! Idea Lets say you want to measure the g-Forces your car/bike experiences while you accelerate, take a corner, do drag race or go through a speed bump. For this you have to use a VBOX, DRAGGY or some other device for getting the acceleration(g-force) values. But the problem with these devices is that they're too expensive, like $300 and upwards. If you are not into pro kind of stuff & just want to know g-force values without spending too much, this can be useful for you. Although this is currently a bit crude, it can be improved a lot if you want to. Nonetheless, this is a fairly easy and  straightforward project for its purpose. Demonstration Before getting started with the details of proj ect, have a look at this demonstration video. Because this is the final result of this project. You will be obtaining 5 values on your laptop (yes you have to carry your laptop/MacBook with you, g-values would be displayed in it only)- instantaneous
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Rectifiers (Half & bridge)

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Rectifiers(half & full wave) Moving on to applications of diodes, an interesting application is Rectifiers. They are devices which convert an AC signal to a DC one . They are primarily of two types- half wave rectifier and full wave rectifier . The names would make sense once we have a thorough look at them.   1.    The Half Wave Rectifier This rectifier uses a diode and a capacitor for doing its job. Half Wave rectifier with load R_L We have to analyse its operation in two parts - one for the positive cycle of AC signal, other one for the negative cycle of signal . During the positive cycle of signal, diode D1 is forward biased , hence it allows the current to flow with ease. Also notice the signal source is parallel to C1 and R_l, so potential drop across them also follow the input voltage . Capacitor also gets charged upto (Vin-Vd). Now as the signal volt starts to drop after its peak , diode D1 goes to reverse bias state( since its +ive side
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