Digital Step Counter By Rakhi280

Digital Step-Km Counter Max. range: 9,950 meters with twain digits Slip it in pants goop for walking and jogging Circuit diagram: move: R1,R3____22K 1/4W resistor R2________2M2 1/4W resistivity 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- bring out (Hundreds meters) D2_______Common-cathode 7-segment LED mini-display (Kilometers) IC1______4093 Quad 2 input Schmitt NAND gate IC IC2______4024 7 stage mess up 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 switch 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) hear 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 go forth display D2 (the most significant digit) shows 0 to 9 Km. and its disassemble is always on to separate Km. from hm. The rightmost display D1 (the to the worst degree significant digit) shows hundreds meters and its dot illuminates aft(prenominal) every 50 meter! s 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 onslaught economic consumption the display illuminates only on request, pushing 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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