Digital Step Counter By Rakhi280

Digital Step-Km Counter Max. range: 9,950 meters with cardinal digits Slip it in pants goop for walking and jogging Circuit diagram: separate: R1,R3____22K 1/4W resistor R2________2M2 1/4W underground R4________1M 1/4W Resistor R5,R7,R8__4K7 1/4W Resistor R6_______47R 1/4W Resistor R9________1K 1/4W Resistor C1_______47nF 63V Polyester Capacitor C2______ one hundrednF 63V Polyester Capacitor C3_______10nF 63V Polyester Capacitor C4_______10µF 25V electrolytic condenser Capacitor D1_______Common-cathode 7-segment LED mini- demonstration (Hundreds meters) D2_______Common-cathode 7-segment LED mini-display (Kilometers) IC1______4093 Quad 2 input Schmitt NAND gate IC IC2______4024 7 stage pleat tabulator IC IC3,IC4__4026 Decade counter with decoded 7-segment display outputs IC Q1,Q2___BC327 45V 800mA PNP Transistors P1_______SPST Pushbutton (Reset) P2_______SPST Pushbutton (Display) SW1______SPST Mercury riff, called also Tilt change over SW2______SPST Slider Switch (Sound on-off) SW3______SPST Slider Switch (Power on-off) BZ_______Piezo sounder B1_______3V Battery (2 AA 1.5V Cells in series) understand purpose: This circuit measures the distance covered during a walk.

ironware is located in a small box slipped in pants pocket and the display is conceived in the following manner: the left-hand(a) display D2 (the most significant digit) shows 0 to 9 Km. and its recess is always on to separate Km. from hm. The rightmost display D1 (the to the last-place degree significant digit) shows hundreds m eters and its dot illuminates after every 50! meters of walking. A beeper (excludable), signals each count unit, occurring every two steps. A normal step was calculated to span just about 78 centimeters, thus the LED signaling 50 meters illuminates after 64 steps (or 32 operations of the mercury switch), the display indicates 100 meters after 128 steps and so on. For low barrage fire economic consumption the display illuminates only on request, push button on P2. accidental reset of the...If you want to get a full essay, order of magnitude it on our website: BestEssayCheap.com

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