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wireless tachometer Answered

we aim to do a miniproject -- contactless tachometer. using the principle of receiving the electromagnetic radiation emitted from the spak ignition engines using an antenna. the signal is ampliflied,filtered ,converted to pulses.using an ADC it is then converted to digital form , then counted and by making use of a lookup table,we aim to display the rpm using 1line 16 character alphanumeric display.PIC microcontroller is used for ADC,pulse counting ,storing lookup table and display interface.kindly post ur suggestions regarding this project..{{{



Why not just place a magnet on the fly wheel and count the frequency it passes a hall effect switch. No math involved!