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Physical Computing. Arduino , Raspberry Pi, Sensors, Controls…. Atmel AVR, ARM 1.8-12V 1-84MHz ( ATtiny , ATmega …) Arduino IDE + libraries I2C, SPI, PWM, UART, USB host $12-60. Arduino. Arduino Trinket. Arduino YÚN. bildr.org. Broadcom SoC 700-900 MHz, 512GB RAM 5V, ~1A

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PowerPoint Slideshow about 'Physical Computing' - elin


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physical computing

Physical Computing

Arduino, Raspberry Pi, Sensors, Controls…

arduino
Atmel AVR, ARM
  • 1.8-12V
  • 1-84MHz (ATtiny, ATmega…)
  • Arduino IDE + libraries
  • I2C, SPI, PWM, UART, USB host
  • $12-60
Arduino
raspberry pi
Broadcom SoC
  • 700-900 MHz, 512GB RAM
  • 5V, ~1A
  • Linux (Arch, Debian, Chromium), Python
  • Integrated A/V out, Ethernet, GPIO
  • $35
  • RasPi Camera Module
Raspberry Pi
beagle bone black
ARM Cortex A8
  • 1GHz, 512GB RAM
  • 5V, ~1A
  • Linux (Angstrom, Android, Ubuntu), Python
  • Integrated A/V out, Ethernet, GPIO, ADC, DAC
  • $45
Beagle Bone Black
slide12
General Purpose Input Output
  • Digital read/write
  • 0-5V, 0-3.3V
  • on/off switching, bit-banging
GPIO?
slide13
Analog to Digital Converter
  • 0-5V, 0-3.3V
  • Voltage reading
  • 8-bit (256 levels or resolution), 10-bit, 16-bit, etc
  • 0…0V, 127…2.5V, 255…5v
ADC?
slide14
Digital to Analog Converter
  • Pulse Width Modulation (PWM)
  • 0-5V, 0-3.3V
  • Fast on/off switching, fading
DAC?
slide15
Barometric Pressure Sensor

BMP085 Breakout

$19.95

Barometric Pressure Sensor

BMP085$8.95

https://www.sparkfun.com/products/11282

wired communication
SPI
  • I2C
  • USI
  • USB Serial
  • TWI
  • CAN BUS
  • UART
  • RS-232
  • Ethernet

3.3V and 5V don’t mesh:

https://www.sparkfun.com/products/8745

Wired Communication
wireless communication
WiFi
  • Bluetooth
  • Xbee / ZigBee
  • Wireless USB/RS-232
  • IrDA
  • 315 & 434 MHz radio

Tend to drain power

Most require Client/Server relationship

Wireless Communication
higher loads
TIP Darlington Transistors
  • TIP120: 5A cont , 8A (trans)
    • NPN = Normally Open
  • TIP125: -5A cont, -8A(trans)
    • PNP = Normally Closed
Higher Loads
inductive loads
Solenoids

Motors

Mechanical Relays (non-SSR)

Inductive Loads
slide31
Human interface
  • Graphical Touchscreen
  • Customizable
  • Ultra low power
  • Wi-Fi integration
  • Built-in Tutorial
slide32
Human interface
  • Graphical Touchscreen
  • Customizable
  • Ultra low power
  • Wi-Fi integration
  • Built-in Tutorial
slide33
Human interface
  • Graphical Touchscreen
  • Customizable
  • Ultra low power
  • Wi-Fi integration
  • Built-in Tutorial
slide34
http://shop.oreilly.com/category/deals/arduino-owo.do?code=WKARD&cmp=tw-make-dotw-arduino

http://www.adafruit.com/blog/2013/01/23/adafruits-raspberry-pi-lesson-10-stepper-motors-raspberry_pi-raspberrypi/

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