req:- use adc0809 ,89c51, dac0808
- the input signal : analog/digital --> (adc)--> 89c51 + ram
when ram is full --> led
- then : data --> (dac)--> output(led 7 seg./...)
but : 8 analog inputs, 2 digital inputs+ 2 analog outputs, 2 digital outputs
i can't understand how it works, do you have any experiment ?
my email : sixday06@yahoo.com
thanks