Homework - Mechanical Part
// Build a little weight to see if there is too much trash in my trashbin
int FSR = 4; // the cell and 10K pulldown are connected to a0
int FSRREADING; // the analog reading from the sensor divider
int LEDpin = 6; // Blue LED
int LEDbrightness;
unsigned int LEDpinVal = 225;
int mySpeed = 10; // 50ms (.05 second) delay; shorten for faster fades
void setup(void) { // We'll send debugging information via the Serial monitor
pinMode(LEDpin, OUTPUT); // sets the pins as output
Serial.begin(9600);
}
void loop(void) {
FSRREADING = analogRead(FSR);
Serial.println(FSRREADING); // the raw analog reading
FSRREADING = FSRREADING;
//now we have to map 0-1023 to 0-255 since thats the range analogWrite uses
LEDbrightness = map(FSRREADING, 0, 1023, 0, 255);
//added this to give output of photocell value
if (FSRREADING < 50) {
LEDpinVal = (LEDpinVal - 1) % 255;
}
else if (FSRREADING > 120) {
LEDpinVal = (LEDpinVal + 1) % 255;
}
analogWrite(LEDpin, LEDpinVal);
delay(mySpeed);
}
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