4-Channel Photoresistor

I have used the RCtime page from arduino.cc to get a single channel photoresistor to work and have a decent analog output. The cap is 1002nF and the resistor is 1kohm.

I got the code for A0 to work. The problem is when I added the second channel. I copied the code and built the second channel exactly the same.

My problem is adding the second channel. When I get the code without errors, the second photo resistor changes the value for both sides.

After I get this figured out and working electrically I will need to change the code to operate motors.

I know I am asking a lot over a forum but is there a site or video that I can look at and figure this out?

(Current error codes)

Arduino: 1.8.8 (Windows 10), Board: "Arduino/Genuino Uno"

C:\*: In function 'long int RCtime(int)':

C:\*:17:8: warning: unused variable 'result' [-Wunused-variable]

long result = 0;

^

C:\*:24:1: warning: no return statement in function returning non-void [-Wreturn-type]

}

^

C:\*: At global scope:

Semester_project_code:25:1: error: expected unqualified-id before '{' token

{

^

C:\*: In function 'long int RCtime(int)':

Semester_project_code:30:6: error: redefinition of 'long int RCtime(int)'

long RCtime(int(trPin))

^

C:\*:15:6: note: 'long int RCtime(int)' previously defined here

long RCtime(int tlPin)

^

Semester_project_code:39:1: error: expected primary-expression before '}' token

}

^

C:\*:32:8: warning: unused variable 'result' [-Wunused-variable]

long result = 0;

^

C:\*:39:1: warning: no return statement in function returning non-void [-Wreturn-type]

}

^

exit status 1

expected unqualified-id before '{' token

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