mruseless
Newbie level 3
My goal is to use PCF8591 and AT89C2051 in displaying the temperature in two 7-segment display using lm35 as a sensor and assembly as the program.
I had came across a problem in interfacing the 7-segment displays as I'll be using the at89c2051 pins, P1.7 and P1.6 to connect to the PCF8591,and most of the schematics I've searched uses all of the pins from P1.0 to P1.7 in connecting to the 7-segment display.
I've designed a circuit diagram and don't know if its going to work.
Really need some help, I'm new to microcontrollers and want to finish this one. Any help is appreciated.
Thanks.
Attached is the circuit I designed.
I had came across a problem in interfacing the 7-segment displays as I'll be using the at89c2051 pins, P1.7 and P1.6 to connect to the PCF8591,and most of the schematics I've searched uses all of the pins from P1.0 to P1.7 in connecting to the 7-segment display.
I've designed a circuit diagram and don't know if its going to work.
Really need some help, I'm new to microcontrollers and want to finish this one. Any help is appreciated.
Thanks.
Attached is the circuit I designed.
