Phototransistor \ Learning \ Wiring ALPHA 1.0 Search wiring.org.co: Language (A-Z) \ Libraries \ Environment \ Learning \ Hardware Examples: Basics, Library, Topics \ Compare Blink Digital read Serial Analog read Serial Switch Photoresistor Fade Statements and comments Setup and Loop Loop Functions Variables Integers and floats True/False Characters and Strings Character classification Datatype conversion Variable scope Arrays Vectors Split a string and convert it to numbers Bidimensional arrays Passing an array to a function Add strings together Appending to Strings Change the case of a string Characters and Strings Compare strings Create strings from other data types Evaluate, look for, and replace characters in a String length() in a String length() and trim() in a String Replace characters or substrings of a string startsWith() and endsWith() in a String Substring in a String Iteration Iterate through digital outputs Iterate through digital inputs Conditionals Logical operators Increment/Decrement Operator precedence Modulo Sine and Cosine Random LED blink LED blink sequence LED swing 7 Segment led numerical LED display Optocoupler: 4N35 Relay 120-240 VAC Light bulb: TRIAC MOSFET: IRLD024 LED Port Tone keyboard Tone melody Tone multiple Tone pitch follower Switch (button) Multiple switches Hall effect sensor distance (proximity) sensor: Parallax ping Transmissive optical sensor Shift Register: 74LS595 Ultrasonic ranger: SFR04/SFR05 Magnetic field sensor: micromag 3-axis Humidity & Temperature: Sparkfun SHT15 Humidity & Temperature: Parallax SHT11 RGB LED matrix: Sparkfun RGB LED backpack Potentiometer Photoresistor Sensor calibration Smooth sensor readings Force Resistor Air quality sensor: MQ135 Infrared ranger (distance/presence): SHARP GP2D12/120 PiezoFilm (touch/vibration): MSIUSA piezo film Phototransistor Microphone (sound sensor) Electret Microphone: Sparkfun Ambient light sensor: Sparkfun TEMT6000 ADXL335 Accelerometer: Sparkfun ADXRS610 Gyroscope: Sparkfun IDG500 Gyroscope: Sparkfun IDG1215 Gyroscope: Sparkfun IXZ500 Gyroscope: Sparkfun LISY300AL Gyroscope: Sparkfun Air pressure: Motorola Infrared ranger & LEDs Potentiometer & LED Low current sensor: Sparkfun ACS712 Current sensor: Sparkfun ACS712 RGB LED Motor speed Stretch sensor & LEDs Light sensor & LED Attending external interrupts Timer LED blink w/timer This example is for Wiring version 0027+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know. Phototransistor: Fairchild GRB1134 by BARRAGAN Reads values from a phototransistor connected to the analog input pin 0. The value read from the sensor is proportional to the amount of light that hits the sensor's surface. The value read is printed to the serial monitor int sensorValue; void setup() { Serial.begin(9600); // sets the serial port to 9600 } void loop() { sensorValue = analogRead(0); // read analog input pin 0 Serial.print(sensorValue, DEC); // prints the value read Serial.print(" "); // prints a space between the numbers delay(100); // wait 100ms for next reading } Wiring is an open project initiated by Hernando Barragán. It is developed by a small team of volunteers. © Info, Processing © Info