Getting started with interactive projects

1. Getting started with interactive projects using the Arduino, Max and Processing

2. What’s a micro-controller?

3. What’s a micro-controller? A Micro-controller is an integrated circuit that contains many of the same items that a desktop computer has, such as CPU, memory, etc., but does not include any “human interface” devices like a monitor, keyboard, or mouse. Micro-controllers are mostly designed for machine control applications, rather than human interaction.

4. What’s a micro-controller? A Micro-controller is an integrated circuit that contains many of the same items that a desktop computer has, such as CPU, memory, etc., but does not include any “human interface” devices like a monitor, keyboard, or mouse. Micro-controllers are mostly designed for machine control applications, rather than human interaction. Micro-controllers paired with all the peripherals they need to be self-sufficient, such as the Arduino Board, are sometimes called “single-board computers.”

8. What is Arduino? • Open Source Physical Computing Platform • Open source: free to inspect & modify • physical computing platform for all sorts of projects • A physical board, a programming environment, a development philosophy • Tiny computer you can program to do all sorts of tasks • Completely stand-alone, or used to communicate with other devices

9. What is Arduino? Arduino is also a standardized “bootloader” • A tiny program that loads other programs • It’s alive during first 5 seconds After 5 seconds, your program runs Don’t need special programmer board with a bootloader

10. What is Arduino? Capabilities • 8 kBytes of Flash program memory • 1 kByte of RAM • 12 MHz (Apple II: 1 MHz) • Inputs and Outputs • 13 digital input/output pins • 5 analog input pins Digital I/O can read switches and buttons, control LEDs and motors Analog input can read knobs or other varying sensors Analog output can be done with PWM

11. • Arduino is very similar to Basic Stamp (if you know it) • but cheaper, faster, & open source • Uses AVR ATmega8 or Atmega168 microcontroller chip Basic Stamp uses PIC microcontroller chip. PICs and AVRs are very comparable, one’s not necessarily better than the other AVRs are a little easier if you’re using a language like C (stack-based) Don’t need to worry about the chip particulars for now

21. Edges are used as power “buses” supplying common + and - charges across the board.

26. Change ledPin to 9

28. http://www.processing.org

30. Try example “fading” with the same circuit

31. init setup loop

32. interlude

34. “ArduinoDimmer” Simple MAX patch to send data to the arduino

35. interlude

36. 1) Quit Max 2) In the arduino environment open: arduinoSerialreader_wiring.pde 3) Upload to Arduino 4) start Max 5) open Arduino2Max_MaxPatch

39. Gas Sensor Gyro Accelerometer Metal Detector Pendulum Resistive Tilt Sensors Piezo Bend Sensor Gieger-Muller Radiation Sensor Pyroelectric Detector UV Detector Resistive Bend Sensors CDS Cell Resistive Light Sensor Digital Infrared Ranging Pressure Switch Miniature Polaroid Sensor Limit Switch Touch Switch Mechanical Tilt Sensors IR Sensor w/lens IR Pin Diode Thyristor Magnetic Sensor Polaroid Sensor Board Hall Effect Magnetic Field Sensors Magnetic Reed Switch IR Reflection Sensor IR Amplifier Sensor IRDA Transceiver IR Modulator Receiver Radio Shack Remote Receiver Lite-On IR Remote Receiver Solar Cell Compass Compass Piezo Ultrasonic Transducers

40. Resistive Sensors • Bend Sensors • Resistance = 10k to 35k Ohms (usually) • Force to produce 90deg = 5 grams • www.jameco.com = 12$ • Potentiometers • Fixed Rotation Sensors • Easy to find, easy to mount • Light Sensor • Good for detecting direction/presence of light • Non-linear resistance Resistive Bend Sensor Potentiometer Cadmium Sulfide Cell

41. Force Sensing Resistors FSRs Call and ask for pricelist And Fsr guide