Ottawa Arduino Challenge #1 Support Page
Welcome to the TCRT5000 infra-red which is the mystery component for the Ottawa Arduino Contest.
The following page is one example of a reference circuit. Here’s another from Dave (the other organizer). It’s more clear: TCRT5000 circuit.
Sample TCRT5000 Circuit
The resistor connecting the blue (IR send) is about 100 ohms. The resistor on the sensor side is about 10K.
Analog Example
/* TCRT5000 IR Sensor Analog Test Circuit http://inventorartist.com/oac-tcrt5000/ Load this program onto the arduino and then press the SERIAL MONITOR button. You should see different numbers representing the distance between the sensor and an object */ void setup() { Serial.begin(9600); } void loop() { int sensorValue = analogRead(0); Serial.println(sensorValue); }
Digital Example
/* TCRT5000 IR Sensor Digital Test Circuit http://inventorartist.com/oac-tcrt5000/ Load this program onto the arduino and then press the SERIAL MONITOR button. You should see a 1 or 0 depending if an object is close to the sensor or not. */ void setup() { Serial.begin(9600); pinMode(8, INPUT); } void loop() { int sensorValue = digitalRead(8); Serial.println(sensorValue); }
Related
http://www.hacker.instanet.net/forums/viewtopic.php?f=6&t=32