4 Channel RC Signal to Solenoid/Lamp Driver Circuit Using PIC16F873 & ULN2003 02/11/2016 RAJ SHARMA 4 Channel RC Signal to Solenoid/Lamp Driver Circuit Using PIC16F873 & ULN2003 Basic Code tagged with 4 Channel RC Signal to Solenoid/Lamp Driver Circuit Using PIC16F873 & ULN2003 Robotics