4-Channel Photoresistor

I have a semester project and I want to use a 4-channel photoresistor to control two bi-directional motors.

Feb 18, 2019

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photoresistor

Components and supplies

Resistor 1k ohm

Capacitor 1 µF

Tools and machines

Materia 101

Apps and platforms

Arduino IDE

Project description

Code

4 Chan Photo Resistor

arduino

I am using this for my semester project. I am trying to get the second channel to work, hopefully when I do, chan 3 and 4 will work also

1int tlPin = A0;
2int trPin = A1;
3long result = 0;
4void setup()
5{
6  Serial.begin(9600);
7  Serial.println("start");
8}
9void loop()
10{
11  Serial.print("TL");
12  Serial.println( RCtime(tlPin));
13  delay(10);
14}
15long  RCtime(int tlPin)
16{
17  long result = 0;
18  pinMode(tlPin, OUTPUT);
19  digitalWrite(tlPin,  HIGH);
20  delay(1);
21  pinMode(tlPin, INPUT);
22  digitalWrite(tlPin, LOW);
23  while (digitalRead(tlPin));
24}
25{
26  Serial.print("TR");
27  Serial.println(RCtime(trPin));
28  delay(10);
29}
30long RCtime(int(trPin)) 
31{ 
32  long result = 0;
33  pinMode(trPin,  OUTPUT);
34  digitalWrite(trPin, HIGH);
35  delay(1);
36  pinMode(trPin, INPUT);
37  digitalWrite(trPin, LOW);
38  while (digitalRead(trPin))
39}

int tlPin = A0;
int trPin = A1;
long result = 0;
void setup()
{
  Serial.begin(9600);
  Serial.println("start");
}
void loop()
{
  Serial.print("TL");
  Serial.println( RCtime(tlPin));
  delay(10);
}
long  RCtime(int tlPin)
{
  long result = 0;
  pinMode(tlPin, OUTPUT);
  digitalWrite(tlPin,  HIGH);
  delay(1);
  pinMode(tlPin, INPUT);
  digitalWrite(tlPin, LOW);
  while (digitalRead(tlPin));
}
{
  Serial.print("TR");
  Serial.println(RCtime(trPin));
  delay(10);
}
long RCtime(int(trPin)) 
{ 
  long result = 0;
  pinMode(trPin,  OUTPUT);
  digitalWrite(trPin, HIGH);
  delay(1);
  pinMode(trPin, INPUT);
  digitalWrite(trPin, LOW);
  while (digitalRead(trPin))
}

Downloadable files

schematic

Screen pic from TinkerCad

schematic

Screen pic from TinkerCad

schematic

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eightball009

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