hi,
where is your circuit.....?
in this case we need adc to convert analog signal to digital.
connect the buzzer to any port pin usnig transistor as switch.
hi,
where is your circuit.....?
in this case we need adc to convert analog signal to digital.
connect the buzzer to any port pin usnig transistor as switch.
My circuit is the normal temperature controller where sensor is LM35,after that there is a signal conditioning circuit and then ADC interfaced using 8051 uc.
this data is displayed on LCD thro port P2.