I have to manage one single analog pin with other digital IO.
I am using a PIC micro, where I have utilized all the pins and I want one more pin for analog input. At the current stage, I can not really afford a new controller design for my project.
I have assigned 7 pins for 7 segment and the other pins are assigned to LEDs, which is a must.
I am looking for multiplexing circuit design (using transistor or something) where I can multiplex analog input and digital output in the design.
I will be connecting an LDR to the analog input.