This is like my other one but simplified (Revised 04-09-25). The potentiometer represents two photo resistors- l(LDR's) One on the bright side and 1 on the dark side. Or vice versa. Notice: the inputs of the operational amplifiers are reversed; one is inverting and the other is non-inverting, this is important. It won't work otherwise- When one op-amp output goes positive, the other must go negative. The op-amps are configured as comparators. The other two inputs are reference voltages. The outputs go through mosfet gates of an H Bridge configuration to control forward and reverse of the motor/ actuator to move the solar panels. Adjust the potentiometer and see how it works, enjoy.